Initial commit: Olimex ESP32-C6-EVB HA integration + Arduino sketch
This commit is contained in:
ske087
270
esp32_arduino/DEPLOYMENT_GUIDE.md
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270
esp32_arduino/DEPLOYMENT_GUIDE.md
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# ESP32-C6 Arduino Deployment Guide
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Complete guide to compile and deploy the firmware to your Olimex ESP32-C6-EVB board.
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---
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## ✓ Pre-Deployment Checklist
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- [ ] Arduino IDE installed (version 2.0+)
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- [ ] ESP32 board package installed (version 3.0.0+)
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- [ ] Olimex ESP32-C6-EVB board connected via USB
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- [ ] USB drivers installed for your OS
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- [ ] WiFi credentials available
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---
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## Step 1: Install Arduino IDE
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1. Download from: https://www.arduino.cc/en/software
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2. Install and launch Arduino IDE 2.0 or later
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---
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## Step 2: Add ESP32 Board Support
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### Windows/Mac/Linux (same process):
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1. **Open Preferences**
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- File → Preferences (or Arduino IDE → Settings on Mac)
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2. **Add Board URL**
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- Find "Additional Boards Manager URLs" field
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- Add this URL:
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```
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https://espressif.github.io/arduino-esp32/package_esp32_index.json
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```
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- Click OK
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3. **Install ESP32 Board Package**
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- Tools → Board → Boards Manager
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- Search: "esp32"
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- Install "esp32 by Espressif Systems" (version 3.0.0+)
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- Wait for installation to complete
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---
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## Step 3: Configure Board Settings
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After installation, configure these exact settings in Arduino IDE:
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**Tools Menu Settings:**
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| Setting | Value |
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|---------|-------|
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| Board | ESP32C6 Dev Module |
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| Upload Speed | 921600 |
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| USB CDC On Boot | **Enabled** ⚠️ CRITICAL |
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| Flash Size | 4MB |
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| Flash Mode | DIO |
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| Flash Frequency | 80MHz |
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| Partition Scheme | Default 4MB |
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---
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## Step 4: Update WiFi Credentials
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**Before uploading**, edit the WiFi credentials in `esp32_arduino.ino`:
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```cpp
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// Line 16-17 - CHANGE THESE:
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const char* ssid = "Your_WiFi_SSID_Here";
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const char* password = "Your_WiFi_Password_Here";
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```
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Replace with your actual WiFi network name and password.
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---
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## Step 5: Connect Board & Find USB Port
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### Linux/Mac:
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```bash
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# Check available ports
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ls -la /dev/ttyACM* /dev/ttyUSB*
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# Should see something like: /dev/ttyACM0
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```
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### Windows:
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- Device Manager → Ports (COM & LPT)
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- Look for "USB-UART Bridge" or similar
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### Select Port in Arduino IDE:
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- Tools → Port → [Select your port]
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- Usually `/dev/ttyACM0` on Linux (not `/dev/ttyUSB0`)
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---
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## Step 6: Compile & Upload
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1. **Verify Sketch** (check for errors before upload)
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- Sketch → Verify/Compile
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- OR press: Ctrl+R (Windows/Linux) or Cmd+R (Mac)
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2. **Upload to Board**
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- Sketch → Upload
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- OR press: Ctrl+U (Windows/Linux) or Cmd+U (Mac)
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3. **Watch Serial Monitor**
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- Tools → Serial Monitor (or Ctrl+Shift+M)
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- **Set baud rate to: 115200**
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- You should see the startup messages
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4. **If No Output:**
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- Press the **RESET button** on the ESP32-C6 board
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- Check that "USB CDC On Boot" is set to **Enabled**
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- Verify Serial Monitor baud rate is 115200
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---
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## Step 7: Verify Deployment Success
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### Expected Serial Output:
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```
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=================================
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ESP32-C6 Home Assistant Device
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Arduino Framework
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=================================
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GPIO initialized
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Connecting to WiFi: Your_WiFi_SSID
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.........................
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✓ WiFi connected!
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IP address: 192.168.1.xxx
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RSSI: -45 dBm
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MAC: AA:BB:CC:DD:EE:FF
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✓ HTTP server started on port 80
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=================================
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Ready! Try these endpoints:
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http://192.168.1.xxx/api/status
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=================================
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```
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### Test the Board
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**From Linux terminal or browser:**
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```bash
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# Get board status
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curl http://192.168.1.xxx/api/status
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# Expected response:
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# {"temperature":25.0,"wifi_rssi":-45,"chip":"ESP32-C6","free_heap":123456,"uptime":12,"ip":"192.168.1.xxx","relay1":false,"led":false}
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# Turn relay ON
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curl -X POST http://192.168.1.xxx/api/relay/relay_1/on
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# Turn relay OFF
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curl -X POST http://192.168.1.xxx/api/relay/relay_1/off
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# Get relay status
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curl http://192.168.1.xxx/api/relay/relay_1/status
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# Turn LED ON
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curl -X POST http://192.168.1.xxx/api/led/led/on
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# Turn LED OFF
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curl -X POST http://192.168.1.xxx/api/led/led/off
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```
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**Or open in browser:**
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- `http://192.168.1.xxx/` - Web control panel
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- `http://192.168.1.xxx/api/status` - JSON status
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---
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## Step 8: Add to Home Assistant
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1. **Get the board's IP address** (from Serial Monitor output)
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2. **In Home Assistant:**
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- Settings → Devices & Services → Integrations
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- Click "+ Create Integration"
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- Search for "Olimex ESP32-C6-EVB"
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- Enter IP address and port (80)
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- Select which relays/LEDs to include
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3. **You should now see:**
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- Temperature sensor
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- WiFi signal strength
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- Relay switch
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- LED switch
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---
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## Troubleshooting
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### No Serial Output
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- ✓ Verify "USB CDC On Boot" is **Enabled** in board settings
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- ✓ Press RESET button on the board
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- ✓ Check Serial Monitor baud rate (115200)
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- ✓ Try different USB cable
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- ✓ Try different USB port
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### WiFi Connection Failed
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- ✓ Verify SSID and password are correct (check for typos)
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- ✓ Ensure board is within WiFi range
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- ✓ Check if WiFi network requires WPA3 (ESP32-C6 may have issues with some WPA3 networks)
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- ✓ Try 2.4GHz network (not 5GHz)
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### Can't Find Board in Arduino IDE
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- ✓ Check USB cable is connected
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- ✓ Verify USB drivers installed
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- ✓ Try different USB port
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- ✓ Restart Arduino IDE
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- ✓ On Linux: `sudo usermod -a -G dialout $USER` then relogin
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### API Endpoints Not Responding
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- ✓ Verify board has WiFi connection (check Serial Monitor)
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- ✓ Verify correct IP address
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- ✓ Check firewall isn't blocking port 80
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- ✓ Restart the board (press RESET button)
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### Relay/LED Not Working
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- ✓ Check GPIO pin connections (LED=GPIO8, Relay=GPIO2)
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- ✓ Verify relay/LED hardware is connected correctly
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- ✓ Test endpoints in Serial Monitor output
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---
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## GPIO Pin Reference
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| Function | GPIO Pin | Usage |
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|----------|----------|-------|
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| LED (Onboard) | GPIO 8 | Blue LED control |
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| Relay 1 | GPIO 2 | Relay control |
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For additional GPIO pins, modify the code and add more handlers.
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---
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## What the Code Does
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✅ **WiFi Connection** - Connects to your WiFi network
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✅ **REST API** - Provides HTTP endpoints for control
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✅ **Web UI** - Control panel at root URL
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✅ **Relay Control** - On/Off control via GPIO2
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✅ **LED Control** - On/Off control via GPIO8
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✅ **Temperature Simulation** - Reads and reports simulated temperature
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✅ **System Status** - Reports uptime, free memory, WiFi signal strength
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✅ **Serial Debugging** - All actions logged to Serial Monitor
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---
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## Next Steps
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1. Deploy firmware to board ✓
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2. Verify board works in Serial Monitor ✓
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3. Test API endpoints from terminal
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4. Add to Home Assistant integration
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5. Create automations using the relay/LED as switches
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---
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## More Resources
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- [Arduino IDE Documentation](https://docs.arduino.cc/software/ide-v2)
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- [Espressif ESP32-C6 Datasheet](https://www.espressif.com/sites/default/files/documentation/esp32-c6_datasheet_en.pdf)
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- [Olimex ESP32-C6-EVB Board](https://www.olimex.com/Products/IoT/ESP32-C6-EVB/)
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166
esp32_arduino/README.md
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166
esp32_arduino/README.md
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@@ -0,0 +1,166 @@
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# ESP32-C6 Arduino Project
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Arduino IDE project for ESP32-C6 Home Assistant integration.
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## Arduino IDE Setup
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### 1. Install ESP32 Board Support
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1. Open Arduino IDE
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2. Go to **File → Preferences**
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3. Add this URL to "Additional Boards Manager URLs":
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||||
```
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https://espressif.github.io/arduino-esp32/package_esp32_index.json
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```
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4. Go to **Tools → Board → Boards Manager**
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5. Search for "esp32" by Espressif Systems
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6. Install **esp32** (version 3.0.0 or later for ESP32-C6 support)
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### 2. Board Configuration
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In Arduino IDE, select:
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- **Board**: "ESP32C6 Dev Module"
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- **Upload Speed**: 921600
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- **USB CDC On Boot**: **Enabled** ⚠️ **CRITICAL for serial output!**
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- **Flash Size**: 4MB
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- **Flash Mode**: DIO
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- **Flash Frequency**: 80MHz
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- **Partition Scheme**: Default 4MB
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- **Port**: `/dev/ttyACM0` (ESP32-C6 typically uses ACM, not USB)
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### 3. Open Project
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1. Open **esp32_arduino.ino** in Arduino IDE
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2. The IDE will create a folder with the same name automatically
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### 4. Upload
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1. Connect your ESP32-C6 board via USB
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2. Check available ports: `ls -la /dev/ttyACM* /dev/ttyUSB*`
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3. Select the correct **Port** in Tools menu (usually `/dev/ttyACM0`)
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4. Click **Upload** button (→)
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5. Wait for compilation and upload
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6. Open **Serial Monitor** (Ctrl+Shift+M) and set to **115200 baud**
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7. **Press the RESET button** on your board to see output
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**Important**: If you see no serial output:
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- Verify **USB CDC On Boot** is set to **Enabled**
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- Press the physical RESET button on the board
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- Make sure Serial Monitor is set to 115200 baud
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## WiFi Configuration
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WiFi credentials are already set in the code:
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```cpp
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const char* ssid = "Buon-Gusto_Nou";
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const char* password = "arleta13";
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```
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## Features
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### Web Interface
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After upload, open your browser to the IP shown in Serial Monitor:
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- Control panel with buttons
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- Real-time status
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- API documentation
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### REST API Endpoints
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#### Get Device Status
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```bash
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curl http://<ESP32_IP>/api/status
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```
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Response:
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```json
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{
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"temperature": 25.3,
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"wifi_rssi": -45,
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"chip": "ESP32-C6",
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"free_heap": 280000,
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"uptime": 123,
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"ip": "192.168.1.100",
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"relay1": false,
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"led": false
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}
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```
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#### Control Relay
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```bash
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# Turn ON
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curl -X POST http://<ESP32_IP>/api/relay/relay_1/on
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# Turn OFF
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curl -X POST http://<ESP32_IP>/api/relay/relay_1/off
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# Get Status
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curl http://<ESP32_IP>/api/relay/relay_1/status
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```
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#### Control LED
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```bash
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# Turn ON
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curl -X POST http://<ESP32_IP>/api/led/led/on
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# Turn OFF
|
||||
curl -X POST http://<ESP32_IP>/api/led/led/off
|
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```
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|
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## GPIO Pins
|
||||
|
||||
- **LED_PIN**: GPIO 8 (onboard LED)
|
||||
- **RELAY_1_PIN**: GPIO 2 (relay control)
|
||||
|
||||
Modify these in the code if your board uses different pins.
|
||||
|
||||
## Troubleshooting
|
||||
|
||||
### Board Not Found in Arduino IDE
|
||||
- Make sure you installed ESP32 board support (minimum version 3.0.0)
|
||||
- Restart Arduino IDE after installation
|
||||
|
||||
### Upload Fails
|
||||
- Check USB cable connection
|
||||
- Select correct port in Tools → Port
|
||||
- Try pressing BOOT button during upload
|
||||
- Reduce upload speed to 115200
|
||||
|
||||
### WiFi Connection Fails
|
||||
- Verify SSID and password
|
||||
- Check if WiFi is 2.4GHz (ESP32-C6 doesn't support 5GHz)
|
||||
- Check Serial Monitor for connection messages
|
||||
|
||||
### Can't See Serial Output
|
||||
- Set Serial Monitor baud rate to **115200**
|
||||
- Enable "USB CDC On Boot" in board settings
|
||||
- Some boards need GPIO 0 held LOW during boot to enter programming mode
|
||||
|
||||
## Serial Monitor Output
|
||||
|
||||
Expected output after successful upload:
|
||||
```
|
||||
=================================
|
||||
ESP32-C6 Home Assistant Device
|
||||
=================================
|
||||
GPIO initialized
|
||||
Connecting to WiFi: Buon-Gusto_Nou
|
||||
..........
|
||||
✓ WiFi connected!
|
||||
IP address: 192.168.1.100
|
||||
RSSI: -45 dBm
|
||||
MAC: AA:BB:CC:DD:EE:FF
|
||||
|
||||
✓ HTTP server started on port 80
|
||||
|
||||
=================================
|
||||
Ready! Try these endpoints:
|
||||
http://192.168.1.100/api/status
|
||||
=================================
|
||||
```
|
||||
|
||||
## Next Steps
|
||||
|
||||
1. Upload the code to your ESP32-C6
|
||||
2. Note the IP address from Serial Monitor
|
||||
3. Test the web interface in your browser
|
||||
4. Integrate with Home Assistant using the custom component at `../custom_components/olimex_esp32_c6/`
|
||||
630
esp32_arduino/esp32_arduino.ino
Normal file
630
esp32_arduino/esp32_arduino.ino
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@@ -0,0 +1,630 @@
|
||||
/**
|
||||
* ESP32-C6 Home Assistant Integration
|
||||
* Arduino IDE Project
|
||||
*
|
||||
* Board: ESP32C6 Dev Module
|
||||
* Flash Size: 4MB
|
||||
* USB CDC On Boot: Enabled (REQUIRED for serial output!)
|
||||
*
|
||||
* Provides REST API for Home Assistant integration
|
||||
*/
|
||||
// version 1.5 Initial release
|
||||
#include <WiFi.h>
|
||||
#include <WebServer.h>
|
||||
#include <WiFiClient.h>
|
||||
|
||||
// WiFi credentials
|
||||
const char* ssid = "BUON GUSTO PARTER";
|
||||
const char* password = "arleta13";
|
||||
|
||||
// Web server on port 80
|
||||
WebServer server(80);
|
||||
|
||||
// GPIO pins - Olimex ESP32-C6-EVB board configuration
|
||||
const int LED_PIN = 8; // Onboard LED
|
||||
const int BUT_PIN = 9; // Onboard button
|
||||
const int RELAY_1_PIN = 10; // Relay 1
|
||||
const int RELAY_2_PIN = 11; // Relay 2
|
||||
const int RELAY_3_PIN = 22; // Relay 3
|
||||
const int RELAY_4_PIN = 23; // Relay 4
|
||||
const int DIN1_PIN = 1; // Digital Input 1
|
||||
const int DIN2_PIN = 2; // Digital Input 2
|
||||
const int DIN3_PIN = 3; // Digital Input 3
|
||||
const int DIN4_PIN = 15; // Digital Input 4
|
||||
|
||||
// State tracking
|
||||
bool relay1_state = false;
|
||||
bool relay2_state = false;
|
||||
bool relay3_state = false;
|
||||
bool relay4_state = false;
|
||||
bool led_state = false;
|
||||
|
||||
// Input state tracking - for change detection
|
||||
bool input1_state = true; // HIGH when not pressed (pull-up)
|
||||
bool input2_state = true;
|
||||
bool input3_state = true;
|
||||
bool input4_state = true;
|
||||
bool last_input1_state = true;
|
||||
bool last_input2_state = true;
|
||||
bool last_input3_state = true;
|
||||
bool last_input4_state = true;
|
||||
unsigned long last_input_check = 0;
|
||||
|
||||
// Home Assistant callback configuration
|
||||
char ha_callback_url[256] = ""; // URL to POST input events to
|
||||
bool ha_registered = false;
|
||||
|
||||
// Temperature simulation
|
||||
float temperature = 25.0;
|
||||
|
||||
void setup() {
|
||||
// Initialize USB CDC serial
|
||||
Serial.begin(115200);
|
||||
delay(2000); // Give time for USB CDC to initialize
|
||||
|
||||
// Wait for serial port to be ready (up to 5 seconds)
|
||||
for (int i = 0; i < 10 && !Serial; i++) {
|
||||
delay(500);
|
||||
}
|
||||
|
||||
Serial.println("\n\n=================================");
|
||||
Serial.println("ESP32-C6 Home Assistant Device");
|
||||
Serial.println("Arduino Framework");
|
||||
Serial.println("=================================");
|
||||
|
||||
// Initialize GPIO - Outputs
|
||||
pinMode(LED_PIN, OUTPUT);
|
||||
pinMode(RELAY_1_PIN, OUTPUT);
|
||||
pinMode(RELAY_2_PIN, OUTPUT);
|
||||
pinMode(RELAY_3_PIN, OUTPUT);
|
||||
pinMode(RELAY_4_PIN, OUTPUT);
|
||||
// Initialize GPIO - Inputs with pull-up
|
||||
pinMode(BUT_PIN, INPUT_PULLUP);
|
||||
pinMode(DIN1_PIN, INPUT_PULLUP);
|
||||
pinMode(DIN2_PIN, INPUT_PULLUP);
|
||||
pinMode(DIN3_PIN, INPUT_PULLUP);
|
||||
pinMode(DIN4_PIN, INPUT_PULLUP);
|
||||
// Set all outputs to LOW
|
||||
digitalWrite(LED_PIN, LOW);
|
||||
digitalWrite(RELAY_1_PIN, LOW);
|
||||
digitalWrite(RELAY_2_PIN, LOW);
|
||||
digitalWrite(RELAY_3_PIN, LOW);
|
||||
digitalWrite(RELAY_4_PIN, LOW);
|
||||
|
||||
Serial.println("GPIO initialized");
|
||||
|
||||
// Configure WiFi
|
||||
Serial.println("\n--- WiFi Configuration ---");
|
||||
WiFi.mode(WIFI_STA);
|
||||
WiFi.setAutoReconnect(true);
|
||||
|
||||
// Set static IP (prevents DHCP IP changes)
|
||||
IPAddress staticIP(192, 168, 0, 181);
|
||||
IPAddress gateway(192, 168, 0, 1);
|
||||
IPAddress subnet(255, 255, 255, 0);
|
||||
WiFi.config(staticIP, gateway, subnet);
|
||||
|
||||
// Connect to WiFi
|
||||
Serial.print("Connecting to WiFi: ");
|
||||
Serial.println(ssid);
|
||||
WiFi.begin(ssid, password);
|
||||
|
||||
int attempts = 0;
|
||||
while (WiFi.status() != WL_CONNECTED && attempts < 40) { // 40 * 500ms = 20 seconds
|
||||
delay(500);
|
||||
Serial.print(".");
|
||||
attempts++;
|
||||
}
|
||||
|
||||
Serial.println(""); // New line after dots
|
||||
|
||||
// Check WiFi status
|
||||
int wifiStatus = WiFi.status();
|
||||
if (wifiStatus == WL_CONNECTED) {
|
||||
Serial.println("\n✓ WiFi connected!");
|
||||
Serial.print("IP address: ");
|
||||
Serial.println(WiFi.localIP());
|
||||
Serial.print("RSSI: ");
|
||||
Serial.print(WiFi.RSSI());
|
||||
Serial.println(" dBm");
|
||||
Serial.print("MAC: ");
|
||||
Serial.println(WiFi.macAddress());
|
||||
} else {
|
||||
Serial.println("\n✗ WiFi connection failed!");
|
||||
Serial.print("WiFi Status Code: ");
|
||||
Serial.println(wifiStatus);
|
||||
// Status codes: 0=IDLE, 1=NO_SSID, 2=SCAN_COMPLETE, 3=CONNECTED, 4=CONNECT_FAILED, 5=CONNECTION_LOST, 6=DISCONNECTED
|
||||
switch(wifiStatus) {
|
||||
case WL_NO_SSID_AVAIL:
|
||||
Serial.println("ERROR: SSID not found! Check network name.");
|
||||
break;
|
||||
case WL_CONNECT_FAILED:
|
||||
Serial.println("ERROR: Connection failed! Check password.");
|
||||
break;
|
||||
case WL_CONNECTION_LOST:
|
||||
Serial.println("ERROR: Connection lost.");
|
||||
break;
|
||||
case WL_DISCONNECTED:
|
||||
Serial.println("ERROR: Disconnected from network.");
|
||||
break;
|
||||
default:
|
||||
Serial.println("ERROR: Unknown WiFi error.");
|
||||
}
|
||||
Serial.println("Continuing anyway to allow API access...");
|
||||
|
||||
// Scan and show available networks
|
||||
scanWiFiNetworks();
|
||||
}
|
||||
|
||||
// Setup API endpoints
|
||||
server.on("/", handleRoot);
|
||||
server.on("/api/status", HTTP_GET, handleStatus);
|
||||
// Relay endpoints
|
||||
server.on("/relay/on", HTTP_POST, handleRelayOn);
|
||||
server.on("/relay/off", HTTP_POST, handleRelayOff);
|
||||
server.on("/relay/status", HTTP_GET, handleRelayStatus);
|
||||
// Input endpoints
|
||||
server.on("/input/status", HTTP_GET, handleInputStatus);
|
||||
// Home Assistant webhook registration
|
||||
server.on("/register", HTTP_POST, handleRegister);
|
||||
// LED endpoints
|
||||
server.on("/led/on", HTTP_POST, handleLEDOn);
|
||||
server.on("/led/off", HTTP_POST, handleLEDOff);
|
||||
server.onNotFound(handleNotFound);
|
||||
|
||||
// Start server
|
||||
server.begin();
|
||||
Serial.println("\n✓ HTTP server started on port 80");
|
||||
Serial.println("\n=================================");
|
||||
Serial.println("Ready! Try these endpoints:");
|
||||
Serial.print(" http://");
|
||||
Serial.print(WiFi.localIP());
|
||||
Serial.println("/api/status");
|
||||
Serial.println("=================================\n");
|
||||
}
|
||||
|
||||
void loop() {
|
||||
server.handleClient();
|
||||
|
||||
// Simulate temperature reading
|
||||
temperature = 25.0 + (random(-20, 20) / 10.0);
|
||||
|
||||
// Check for input state changes every 50ms
|
||||
if (millis() - last_input_check > 50) {
|
||||
last_input_check = millis();
|
||||
checkInputChanges();
|
||||
}
|
||||
|
||||
delay(10);
|
||||
}
|
||||
|
||||
// ============================================
|
||||
// WiFi Debug Function
|
||||
// ============================================
|
||||
|
||||
void scanWiFiNetworks() {
|
||||
Serial.println("\n--- Available WiFi Networks ---");
|
||||
int n = WiFi.scanNetworks();
|
||||
if (n == 0) {
|
||||
Serial.println("No networks found!");
|
||||
} else {
|
||||
Serial.print("Found ");
|
||||
Serial.print(n);
|
||||
Serial.println(" networks:");
|
||||
for (int i = 0; i < n; i++) {
|
||||
Serial.print(i + 1);
|
||||
Serial.print(". ");
|
||||
Serial.print(WiFi.SSID(i));
|
||||
Serial.print(" (");
|
||||
Serial.print(WiFi.RSSI(i));
|
||||
Serial.print(" dBm) ");
|
||||
Serial.println(WiFi.encryptionType(i) == WIFI_AUTH_OPEN ? "Open" : "Secured");
|
||||
}
|
||||
}
|
||||
Serial.println("-------------------------------\n");
|
||||
}
|
||||
|
||||
// ============================================
|
||||
// API Handlers
|
||||
// ============================================
|
||||
|
||||
void handleRoot() {
|
||||
// Read all inputs first to get current state
|
||||
input1_state = digitalRead(DIN1_PIN);
|
||||
input2_state = digitalRead(DIN2_PIN);
|
||||
input3_state = digitalRead(DIN3_PIN);
|
||||
input4_state = digitalRead(DIN4_PIN);
|
||||
|
||||
String html = "<html><head><title>ESP32-C6 Device</title>";
|
||||
html += "<meta name='viewport' content='width=device-width, initial-scale=1'>";
|
||||
html += "<style>";
|
||||
html += "body{font-family:Arial;margin:20px;background:#f0f0f0}";
|
||||
html += ".card{background:white;padding:20px;margin:10px 0;border-radius:8px;box-shadow:0 2px 4px rgba(0,0,0,0.1)}";
|
||||
html += "h1{color:#333}h2{color:#555;font-size:17px;margin-top:0;margin-bottom:12px}";
|
||||
html += ".grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}";
|
||||
// Input item with round LED indicator
|
||||
html += ".inp-item{display:flex;align-items:center;gap:12px;padding:10px 14px;background:#f7f7f7;border-radius:8px;border:1px solid #e0e0e0}";
|
||||
html += ".led{width:22px;height:22px;border-radius:50%;flex-shrink:0;transition:background 0.3s,box-shadow 0.3s}";
|
||||
html += ".led-on{background:#4CAF50;box-shadow:0 0 8px #4CAF5099}";
|
||||
html += ".led-off{background:#f44336;box-shadow:0 0 8px #f4433666}";
|
||||
html += ".inp-name{font-weight:bold;font-size:14px;color:#333}";
|
||||
html += ".inp-state{font-size:11px;color:#888;margin-top:2px}";
|
||||
// Relay toggle buttons
|
||||
html += ".relay-btn{width:100%;padding:14px 8px;border:none;border-radius:8px;cursor:pointer;font-size:14px;font-weight:bold;transition:background 0.2s,transform 0.1s}";
|
||||
html += ".relay-btn:active{transform:scale(0.97)}";
|
||||
html += ".relay-on{background:#4CAF50;color:white}";
|
||||
html += ".relay-off{background:#9e9e9e;color:white}";
|
||||
html += ".relay-on:hover{background:#43A047}.relay-off:hover{background:#757575}";
|
||||
// LED control & webhook
|
||||
html += ".card-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:10px 0}"; // two big columns
|
||||
html += ".card-row .card{margin:0}"; // reset per-card margin inside row
|
||||
html += ".btn{padding:8px 16px;margin:4px;border:none;border-radius:4px;cursor:pointer;font-size:14px}";
|
||||
html += ".btn-on{background:#4CAF50;color:white}.btn-off{background:#f44336;color:white}";
|
||||
html += ".wh-ok{background:#c8e6c9;color:#1b5e20;padding:10px;border-radius:4px}";
|
||||
html += ".wh-err{background:#ffcdd2;color:#b71c1c;padding:10px;border-radius:4px}";
|
||||
html += "</style>";
|
||||
html += "<script>";
|
||||
// Relay toggle: read current state from data-state attribute, POST, update DOM
|
||||
html += "function toggleRelay(n){";
|
||||
html += "var b=document.getElementById('r'+n);";
|
||||
html += "var on=b.dataset.state==='1';";
|
||||
html += "fetch((on?'/relay/off':'/relay/on')+'?relay='+n,{method:'POST'})";
|
||||
html += ".then(function(){var ns=!on;b.dataset.state=ns?'1':'0';";
|
||||
html += "b.className='relay-btn '+(ns?'relay-on':'relay-off');";
|
||||
html += "b.textContent='Relay '+n+': '+(ns?'ON':'OFF');})";
|
||||
html += ".catch(function(e){console.error(e);});";
|
||||
html += "}";
|
||||
// Polling: update LED indicators and relay button states
|
||||
html += "function updateStatus(){fetch('/api/status').then(function(r){return r.json();}).then(function(d){";
|
||||
html += "for(var i=1;i<=4;i++){";
|
||||
// input: raw HIGH=not pressed, so pressed = !d['input'+i]
|
||||
html += "var p=!d['input'+i];";
|
||||
html += "document.getElementById('led'+i).className='led '+(p?'led-on':'led-off');";
|
||||
html += "document.getElementById('is'+i).textContent=p?'PRESSED':'NOT PRESSED';";
|
||||
// relay: update toggle button
|
||||
html += "var b=document.getElementById('r'+i);var on=d['relay'+i];";
|
||||
html += "b.dataset.state=on?'1':'0';";
|
||||
html += "b.className='relay-btn '+(on?'relay-on':'relay-off');";
|
||||
html += "b.textContent='Relay '+i+': '+(on?'ON':'OFF');";
|
||||
html += "}";
|
||||
html += "}).catch(function(e){console.error(e);});}";
|
||||
html += "window.addEventListener('load',function(){updateStatus();setInterval(updateStatus,2000);});";
|
||||
html += "</script>";
|
||||
html += "</head><body>";
|
||||
html += "<h1>ESP32-C6 Control Panel</h1>";
|
||||
|
||||
// Device Info
|
||||
html += "<div class='card'><h2>Device Info</h2>";
|
||||
html += "IP: " + WiFi.localIP().toString() + " ";
|
||||
html += "RSSI: " + String(WiFi.RSSI()) + " dBm ";
|
||||
html += "Temp: " + String(temperature, 1) + "°C ";
|
||||
html += "Uptime: " + String(millis() / 1000) + "s</div>";
|
||||
|
||||
// Inputs + Relays side by side in a 2-column row
|
||||
html += "<div class='card-row'>";
|
||||
|
||||
// Inputs — 2-column inner grid, round LED indicator
|
||||
html += "<div class='card'><h2>Inputs</h2><div class='grid2'>";
|
||||
bool inputStates[5] = {false, input1_state, input2_state, input3_state, input4_state};
|
||||
for (int i = 1; i <= 4; i++) {
|
||||
bool pressed = !inputStates[i]; // pull-up: LOW=pressed
|
||||
html += "<div class='inp-item'>";
|
||||
html += "<div class='led " + String(pressed ? "led-on" : "led-off") + "' id='led" + String(i) + "'></div>";
|
||||
html += "<div><div class='inp-name'>Input " + String(i) + "</div>";
|
||||
html += "<div class='inp-state' id='is" + String(i) + "'>" + String(pressed ? "PRESSED" : "NOT PRESSED") + "</div></div>";
|
||||
html += "</div>";
|
||||
}
|
||||
html += "</div></div>"; // close Inputs card
|
||||
|
||||
// Relays — 2-column inner grid, toggle buttons
|
||||
html += "<div class='card'><h2>Relays</h2><div class='grid2'>";
|
||||
bool relayStates[5] = {false, relay1_state, relay2_state, relay3_state, relay4_state};
|
||||
for (int i = 1; i <= 4; i++) {
|
||||
bool on = relayStates[i];
|
||||
html += "<button class='relay-btn " + String(on ? "relay-on" : "relay-off") + "' ";
|
||||
html += "id='r" + String(i) + "' data-state='" + String(on ? "1" : "0") + "' ";
|
||||
html += "onclick='toggleRelay(" + String(i) + ")'>";
|
||||
html += "Relay " + String(i) + ": " + String(on ? "ON" : "OFF");
|
||||
html += "</button>";
|
||||
}
|
||||
html += "</div></div>"; // close Relays card
|
||||
html += "</div>"; // close .card-row
|
||||
|
||||
// LED Control
|
||||
html += "<div class='card'><h2>LED Control</h2>";
|
||||
html += "<button class='btn btn-on' onclick='fetch(\"/led/on\",{method:\"POST\"}).then(()=>location.reload())'>LED ON</button>";
|
||||
html += "<button class='btn btn-off' onclick='fetch(\"/led/off\",{method:\"POST\"}).then(()=>location.reload())'>LED OFF</button>";
|
||||
html += " Status: <strong>" + String(led_state ? "ON" : "OFF") + "</strong></div>";
|
||||
|
||||
// Home Assistant Webhook Status
|
||||
html += "<div class='card'><h2>Home Assistant Webhook</h2>";
|
||||
if (ha_registered && strlen(ha_callback_url) > 0) {
|
||||
html += "<div class='wh-ok'>✓ Connected — " + String(ha_callback_url) + "</div>";
|
||||
} else {
|
||||
html += "<div class='wh-err'>✗ Not registered — waiting for Home Assistant...</div>";
|
||||
}
|
||||
html += "</div>";
|
||||
|
||||
html += "<div class='card'><h2>API Endpoints</h2>";
|
||||
html += "GET /api/status POST /relay/on?relay=1-4 POST /relay/off?relay=1-4<br>";
|
||||
html += "GET /input/status?input=1-4 POST /led/on POST /led/off<br>";
|
||||
html += "POST /register?callback_url=...</div>";
|
||||
|
||||
html += "</body></html>";
|
||||
|
||||
server.send(200, "text/html", html);
|
||||
}
|
||||
|
||||
// Status request monitoring
|
||||
static unsigned long last_status_log = 0;
|
||||
static int status_request_count = 0;
|
||||
|
||||
void handleStatus() {
|
||||
status_request_count++;
|
||||
|
||||
// Read fresh input states
|
||||
input1_state = digitalRead(DIN1_PIN);
|
||||
input2_state = digitalRead(DIN2_PIN);
|
||||
input3_state = digitalRead(DIN3_PIN);
|
||||
input4_state = digitalRead(DIN4_PIN);
|
||||
|
||||
String json = "{";
|
||||
json += "\"input1\":" + String(input1_state ? "true" : "false") + ",";
|
||||
json += "\"input2\":" + String(input2_state ? "true" : "false") + ",";
|
||||
json += "\"input3\":" + String(input3_state ? "true" : "false") + ",";
|
||||
json += "\"input4\":" + String(input4_state ? "true" : "false") + ",";
|
||||
json += "\"relay1\":" + String(relay1_state ? "true" : "false") + ",";
|
||||
json += "\"relay2\":" + String(relay2_state ? "true" : "false") + ",";
|
||||
json += "\"relay3\":" + String(relay3_state ? "true" : "false") + ",";
|
||||
json += "\"relay4\":" + String(relay4_state ? "true" : "false") + ",";
|
||||
json += "\"led\":" + String(led_state ? "true" : "false");
|
||||
json += "}";
|
||||
|
||||
server.send(200, "application/json", json);
|
||||
|
||||
// Log status every 10 seconds
|
||||
if (millis() - last_status_log > 10000) {
|
||||
last_status_log = millis();
|
||||
Serial.printf("API: %d requests/10sec, Free heap: %d bytes, Uptime: %lus\n", status_request_count, ESP.getFreeHeap(), millis() / 1000);
|
||||
status_request_count = 0;
|
||||
}
|
||||
}
|
||||
|
||||
void handleRelayOn() {
|
||||
if (!server.hasArg("relay")) {
|
||||
server.send(400, "application/json", "{\"error\":\"Missing relay parameter\"}");
|
||||
return;
|
||||
}
|
||||
|
||||
int relay_num = server.arg("relay").toInt();
|
||||
int pin = -1;
|
||||
bool *state_ptr = nullptr;
|
||||
|
||||
switch(relay_num) {
|
||||
case 1: pin = RELAY_1_PIN; state_ptr = &relay1_state; break;
|
||||
case 2: pin = RELAY_2_PIN; state_ptr = &relay2_state; break;
|
||||
case 3: pin = RELAY_3_PIN; state_ptr = &relay3_state; break;
|
||||
case 4: pin = RELAY_4_PIN; state_ptr = &relay4_state; break;
|
||||
default:
|
||||
server.send(400, "application/json", "{\"error\":\"Invalid relay number\"}");
|
||||
return;
|
||||
}
|
||||
|
||||
digitalWrite(pin, HIGH);
|
||||
*state_ptr = true;
|
||||
server.send(200, "application/json", "{\"status\":\"ok\",\"state\":true}");
|
||||
Serial.printf("Relay %d ON\n", relay_num);
|
||||
}
|
||||
|
||||
void handleRelayOff() {
|
||||
if (!server.hasArg("relay")) {
|
||||
server.send(400, "application/json", "{\"error\":\"Missing relay parameter\"}");
|
||||
return;
|
||||
}
|
||||
|
||||
int relay_num = server.arg("relay").toInt();
|
||||
int pin = -1;
|
||||
bool *state_ptr = nullptr;
|
||||
|
||||
switch(relay_num) {
|
||||
case 1: pin = RELAY_1_PIN; state_ptr = &relay1_state; break;
|
||||
case 2: pin = RELAY_2_PIN; state_ptr = &relay2_state; break;
|
||||
case 3: pin = RELAY_3_PIN; state_ptr = &relay3_state; break;
|
||||
case 4: pin = RELAY_4_PIN; state_ptr = &relay4_state; break;
|
||||
default:
|
||||
server.send(400, "application/json", "{\"error\":\"Invalid relay number\"}");
|
||||
return;
|
||||
}
|
||||
|
||||
digitalWrite(pin, LOW);
|
||||
*state_ptr = false;
|
||||
server.send(200, "application/json", "{\"status\":\"ok\",\"state\":false}");
|
||||
Serial.printf("Relay %d OFF\n", relay_num);
|
||||
}
|
||||
|
||||
void handleRelayStatus() {
|
||||
if (!server.hasArg("relay")) {
|
||||
server.send(400, "application/json", "{\"error\":\"Missing relay parameter\"}");
|
||||
return;
|
||||
}
|
||||
|
||||
int relay_num = server.arg("relay").toInt();
|
||||
bool state = false;
|
||||
|
||||
switch(relay_num) {
|
||||
case 1: state = relay1_state; break;
|
||||
case 2: state = relay2_state; break;
|
||||
case 3: state = relay3_state; break;
|
||||
case 4: state = relay4_state; break;
|
||||
default:
|
||||
server.send(400, "application/json", "{\"error\":\"Invalid relay number\"}");
|
||||
return;
|
||||
}
|
||||
|
||||
String json = "{\"state\":" + String(state ? "true" : "false") + "}";
|
||||
server.send(200, "application/json", json);
|
||||
}
|
||||
|
||||
void handleInputStatus() {
|
||||
if (!server.hasArg("input")) {
|
||||
server.send(400, "application/json", "{\"error\":\"Missing input parameter\"}");
|
||||
return;
|
||||
}
|
||||
|
||||
int input_num = server.arg("input").toInt();
|
||||
int pin = -1;
|
||||
|
||||
switch(input_num) {
|
||||
case 1: pin = DIN1_PIN; break;
|
||||
case 2: pin = DIN2_PIN; break;
|
||||
case 3: pin = DIN3_PIN; break;
|
||||
case 4: pin = DIN4_PIN; break;
|
||||
default:
|
||||
server.send(400, "application/json", "{\"error\":\"Invalid input number\"}");
|
||||
return;
|
||||
}
|
||||
|
||||
int level = digitalRead(pin);
|
||||
String json = "{\"state\":" + String(level ? "true" : "false") + "}";
|
||||
server.send(200, "application/json", json);
|
||||
Serial.printf("Input %d status: %d\n", input_num, level);
|
||||
}
|
||||
|
||||
void handleLEDOn() {
|
||||
digitalWrite(LED_PIN, LOW); // LED is active-low
|
||||
led_state = true;
|
||||
server.send(200, "application/json", "{\"status\":\"ok\"}");
|
||||
Serial.println("LED ON");
|
||||
}
|
||||
|
||||
void handleLEDOff() {
|
||||
digitalWrite(LED_PIN, HIGH); // LED is active-low
|
||||
led_state = false;
|
||||
server.send(200, "application/json", "{\"status\":\"ok\"}");
|
||||
Serial.println("LED OFF");
|
||||
}
|
||||
|
||||
void handleNotFound() {
|
||||
String message = "404: Not Found\n\n";
|
||||
message += "URI: " + server.uri() + "\n";
|
||||
message += "Method: " + String((server.method() == HTTP_GET) ? "GET" : "POST") + "\n";
|
||||
server.send(404, "text/plain", message);
|
||||
}
|
||||
|
||||
// ============================================
|
||||
// Home Assistant Integration
|
||||
// ============================================
|
||||
|
||||
void handleRegister() {
|
||||
if (!server.hasArg("callback_url")) {
|
||||
server.send(400, "application/json", "{\"error\":\"Missing callback_url parameter\"}");
|
||||
return;
|
||||
}
|
||||
|
||||
String url = server.arg("callback_url");
|
||||
if (url.length() > 255) {
|
||||
server.send(400, "application/json", "{\"error\":\"URL too long (max 255 chars)\"}");
|
||||
return;
|
||||
}
|
||||
|
||||
url.toCharArray(ha_callback_url, 256);
|
||||
ha_registered = true;
|
||||
|
||||
Serial.printf("Home Assistant webhook registered: %s\n", ha_callback_url);
|
||||
server.send(200, "application/json", "{\"status\":\"ok\",\"message\":\"Webhook registered\"}");
|
||||
}
|
||||
|
||||
void checkInputChanges() {
|
||||
if (!ha_registered) return; // Only check if HA is registered
|
||||
|
||||
// Read all input states
|
||||
bool curr_input1 = digitalRead(DIN1_PIN);
|
||||
bool curr_input2 = digitalRead(DIN2_PIN);
|
||||
bool curr_input3 = digitalRead(DIN3_PIN);
|
||||
bool curr_input4 = digitalRead(DIN4_PIN);
|
||||
|
||||
// Check for changes and POST events
|
||||
if (curr_input1 != last_input1_state) {
|
||||
last_input1_state = curr_input1;
|
||||
postInputEvent(1, curr_input1);
|
||||
}
|
||||
if (curr_input2 != last_input2_state) {
|
||||
last_input2_state = curr_input2;
|
||||
postInputEvent(2, curr_input2);
|
||||
}
|
||||
if (curr_input3 != last_input3_state) {
|
||||
last_input3_state = curr_input3;
|
||||
postInputEvent(3, curr_input3);
|
||||
}
|
||||
if (curr_input4 != last_input4_state) {
|
||||
last_input4_state = curr_input4;
|
||||
postInputEvent(4, curr_input4);
|
||||
}
|
||||
}
|
||||
|
||||
void postInputEvent(int input_num, bool state) {
|
||||
if (!ha_registered || strlen(ha_callback_url) == 0) {
|
||||
return; // Not registered, skip
|
||||
}
|
||||
|
||||
// Invert state because inputs use pull-up (HIGH=not pressed, LOW=pressed)
|
||||
bool pressed = !state;
|
||||
String event_type = pressed ? "input_on" : "input_off";
|
||||
|
||||
Serial.printf("Input %d event: %s (raw_state=%d) - POSTing to HA\n", input_num, event_type.c_str(), state);
|
||||
|
||||
// Parse callback URL (format: http://host:port/path)
|
||||
String url_str = String(ha_callback_url);
|
||||
|
||||
// Extract host and path
|
||||
int protocol_end = url_str.indexOf("://");
|
||||
if (protocol_end < 0) return;
|
||||
|
||||
int host_start = protocol_end + 3;
|
||||
int port_separator = url_str.indexOf(":", host_start);
|
||||
int path_start = url_str.indexOf("/", host_start);
|
||||
|
||||
if (path_start < 0) path_start = url_str.length();
|
||||
if (port_separator < 0 || port_separator > path_start) port_separator = -1;
|
||||
|
||||
String host = url_str.substring(host_start, (port_separator >= 0) ? port_separator : path_start);
|
||||
int port = 80; // Default HTTP port
|
||||
if (port_separator >= 0) {
|
||||
int colon_port_end = url_str.indexOf("/", port_separator);
|
||||
if (colon_port_end < 0) colon_port_end = url_str.length();
|
||||
String port_str = url_str.substring(port_separator + 1, colon_port_end);
|
||||
port = port_str.toInt();
|
||||
}
|
||||
String path = url_str.substring(path_start);
|
||||
|
||||
// Create JSON payload
|
||||
String json = "{\"input\":" + String(input_num) + ",\"state\":" + (pressed ? "true" : "false") + "}";
|
||||
|
||||
// Connect to Home Assistant and POST
|
||||
WiFiClient client;
|
||||
if (!client.connect(host.c_str(), port)) {
|
||||
Serial.printf("Failed to connect to %s:%d\n", host.c_str(), port);
|
||||
return;
|
||||
}
|
||||
|
||||
// Send HTTP POST request
|
||||
client.println("POST " + path + " HTTP/1.1");
|
||||
client.println("Host: " + host);
|
||||
client.println("Content-Type: application/json");
|
||||
client.println("Content-Length: " + String(json.length()));
|
||||
client.println("Connection: close");
|
||||
client.println();
|
||||
client.print(json);
|
||||
|
||||
// Wait for response
|
||||
delay(100);
|
||||
|
||||
// Read response
|
||||
while (client.available()) {
|
||||
char c = client.read();
|
||||
// Just discard the response for now
|
||||
}
|
||||
|
||||
client.stop();
|
||||
Serial.printf("Input %d event posted successfully\n", input_num);
|
||||
}
|
||||
Reference in New Issue
Block a user