Arduino-Controlled Servo Driver for Multi-Channel PWM Applications
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Circuit Documentation
Summary
This circuit is designed to control multiple servo motors using an Adafruit 16-Channel 12-bit PWM Servo Driver, which is interfaced with an Arduino Mega 2560 microcontroller. The servo driver allows for precise control of up to 16 servos using just two pins (SDA and SCL) for I2C communication from the Arduino. The power supply provides the necessary voltage and current to drive the servos and the servo driver board.
Component List
Adafruit 16-Channel 12-bit PWM Servo Driver - I2C
- Description: A 16-channel, 12-bit PWM servo driver with I2C interface.
- Pins: 5.0V, VCC, SDA, SCL, OE, GND, PWM0-PWM15, PWRIN
POWER SUPPLY 5V 5AMP
- Description: A power supply unit capable of delivering 5V and up to 5A of current.
- Pins: 220V Positive Pole (AC), 220V Negative Pole (AC), GND, GND (DC), 12V-24V Output (DC)
Servo Motors
- Description: Standard servo motors for precise angular movement.
- Pins: gnd, vcc, pulse
Arduino Mega 2560
- Description: A microcontroller board based on the ATmega2560.
- Pins: IOREF, RESET, 3V3, 5V, GND, VIN, Analog Pins (A0-A15), Digital Pins (D0-D53), Communication Pins (SDA, SCL, RX, TX), PWM Pins, AREF
Wiring Details
Adafruit 16-Channel 12-bit PWM Servo Driver - I2C
- 5.0V: Connected to the 5.0V pin of each Servo motor.
- VCC: Connected to the 5V pin of the Arduino Mega 2560.
- SDA: Connected to the SDA pin of the Arduino Mega 2560.
- SCL: Connected to the SCL pin of the Arduino Mega 2560.
- GND: Connected to the GND pin of the Arduino Mega 2560 and GND (DC) of the POWER SUPPLY.
- PWM0-PWM5: Connected to the pulse pin of each corresponding Servo motor.
- PWRIN: Connected to the 12V-24V Output (DC) of the POWER SUPPLY.
POWER SUPPLY 5V 5AMP
- 12V-24V Output (DC): Connected to the PWRIN pin of the Adafruit 16-Channel 12-bit PWM Servo Driver.
- GND (DC): Connected to the GND pin of the Adafruit 16-Channel 12-bit PWM Servo Driver.
Servo Motors
- gnd: Connected to the GND pin of the Adafruit 16-Channel 12-bit PWM Servo Driver.
- vcc: Connected to the 5.0V pin of the Adafruit 16-Channel 12-bit PWM Servo Driver.
- pulse: Connected to the corresponding PWM pin (PWM0-PWM5) of the Adafruit 16-Channel 12-bit PWM Servo Driver.
Arduino Mega 2560
- 5V: Connected to the VCC pin of the Adafruit 16-Channel 12-bit PWM Servo Driver.
- GND: Connected to the GND pin of the Adafruit 16-Channel 12-bit PWM Servo Driver.
- SDA: Connected to the SDA pin of the Adafruit 16-Channel 12-bit PWM Servo Driver.
- SCL: Connected to the SCL pin of the Adafruit 16-Channel 12-bit PWM Servo Driver.
Documented Code
Arduino Mega 2560 - sketch.ino
void setup() {
// put your setup code here, to run once:
}
void loop() {
// put your main code here, to run repeatedly:
}
Arduino Mega 2560 - documentation.txt
(No additional documentation provided)