This Arduino project controls a servo motor, a DC motor, a relay, and a sensor system. It integrates a PCA9685 servo driver, push buttons, and a sensor for detection. The system:
- Moves a servo motor between two positions (0° and 180°) via button inputs.
- Toggles a relay every 5 seconds.
- Controls a DC motor using PWM signals.
- Detects an object using a sensor and triggers a response.
- Outputs debugging information via Serial Monitor.
| Component | Description |
|---|---|
| Arduino Uno/Mega/Nano | Main microcontroller |
| PCA9685 | 16-channel PWM driver for servos |
| Servo Motor | Rotates between predefined angles |
| DC Motor | Controlled via PWM signals |
| Relay Module | Toggles ON/OFF every 5 seconds |
| Keyence Fiber Optic Sensor | Detects objects and sends TTL signals |
| Push Buttons (2x) | Controls the servo position |
| Wires & Power Supply | Connects components and provides power |
| Arduino Pin | Component |
|---|---|
SDA/SCL |
PCA9685 (I2C) |
9 |
Servo Motor PWM |
10 |
DC Motor PWM (via H-Bridge) |
4 |
Relay Control |
2 |
Sensor Digital Input |
12, 13 |
Push Buttons (Good Sump / Bad Sump) |
5, 6, 7 |
DC Motor Control (ENA, IN1, IN2) |
- Install Arduino IDE: Download Here
- Install Adafruit PWM Servo Driver Library:
- Open Arduino IDE → Go to Library Manager (
Sketch>Include Library>Manage Libraries). - Search for Adafruit PWMServoDriver and install it.
- Open Arduino IDE → Go to Library Manager (
- Open
Arduino IDE - Copy and paste the provided code into the editor.
- Connect your Arduino board and select the correct Board & Port.
- Click Upload to flash the program.
- The system resets the servo when powered on.
- Press the buttons:
Good Sump (Pin 12)→ Moves servo to0°Bad Sump (Pin 13)→ Moves servo to180°
- The relay toggles every 5 seconds.
- The DC motor runs continuously.
- The sensor detects objects, triggering
"Shell detected! Take a picture!"in the Serial Monitor.
📩 Author: Matthew Pope 🔗 GitHub: PopeMattA 📧 Email: [popematt1204@gmail.com]