125 lines
2.9 KiB
Markdown
125 lines
2.9 KiB
Markdown
# ESP32 LED Controller for Model Aircraft
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Professional LED controller firmware for ESP32. Designed for model aircraft with WS2812B LED strips.
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## Features
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### Hardware Support
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- **ESP32 DevKitC** and **ESP32-C3 MINI** Development Board
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- Dual WS2812B LED strip support (configurable GPIOs)
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- PWM signal input for RC control
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- Real-time LED animation at 60 FPS
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### Animation Modes
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1. **Black** - All LEDs off
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2. **Red** - Solid red
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3. **Blue** - Solid blue
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4. **Green** - Solid green
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5. **White** - Solid white
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6. **Rainbow** - Smooth rainbow gradient
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7. **Rainbow with Glitter** - Rainbow with sparkles
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8. **Confetti** - Random colored speckles
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9. **Sinelon** - Sweeping colored dot with trails
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10. **BPM** - Pulsing stripes at 33 BPM
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11. **Navigation** - Aviation lights (red left, green right)
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12. **Chase (Red)** - Red dot chase effect
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13. **Chase (RGB)** - RGB cycling chase effect
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14. **Random** - Random LED colors
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## Project Structure
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```
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led-controller-firmware/
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├── main/
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│ ├── main.c # Application entry point
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│ ├── control.c/h # initialization
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│ ├── config.c/h # NVS
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│ ├── led.c/h # WS2812B control (RMT driver)
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│ ├── rcsignal.c/h # PWM signal reading
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│ ├── localbtn.c/h # Local btn reading
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│ └── animation.c/h # LED animation patterns
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├── CMakeLists.txt
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├── sdkconfig.defaults
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└── partitions.csv # OTA-enabled partition table
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```
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## Build Instructions
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### Prerequisites
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1. Install ESP-IDF v5.0 or later
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2. For ESP32-C3, ensure RISC-V toolchain is installed
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### Building
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```bash
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cd led-controller-firmware
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# For ESP32 DevKitC
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idf.py set-target esp32
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idf.py build
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# For ESP32-C3 MINI
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idf.py set-target esp32c3
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idf.py build
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```
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### Flashing
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```bash
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idf.py -p /dev/ttyUSB0 flash monitor
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```
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Replace `/dev/ttyUSB0` with your serial port.
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## Hardware Setup
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### Wiring
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```
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ESP32 Pin -> Component
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----------- ----------
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GPIO XX -> WS2812B Strip A Data
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GPIO XX -> WS2812B Strip B Data
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GPIO XX -> RC PWM Signal
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GPIO XX -> Local button Signal
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GND -> Common Ground
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5V -> LED Strip Power (if current < 500mA)
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```
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### LED Strips
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- **WS2812B** strips require 5V power
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- Each LED draws ~60mA at full white
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- Use external power supply for >10 LEDs
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- Add 100-500µF capacitor near strips
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- Add 330Ω resistor on data line
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### PWM Signal
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- Standard RC PWM: 1000-2000µs pulse width
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- 1500µs threshold for mode switching
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- Rising edge >1500µs after <1500µs triggers next mode
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## Development
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### Adding New Animations
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1. Add mode to `animation_mode_t` enum in `animation.h`
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2. Implement animation function in `animation.c`
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3. Add case to `animation_update()` switch statement
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### Testing
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```bash
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# Build and flash
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idf.py build flash
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# Monitor output
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idf.py monitor
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# Exit monitor: Ctrl+]
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```
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## License
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See [LICENSE](LICENSE)
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