Circuit Documentation

Summary

The circuit in question is designed to interface an Arduino UNO with various peripherals including a 4-channel relay module, an I2C DAC breakout module, a micro stepping motor driver, a 6-channel receiver, and a power supply system. The circuit is powered by a 12V to 5V step-down converter and a battery pack, with a rocker switch to control power flow. The Arduino UNO microcontrollers are programmed to control the peripherals through digital and analog signals.

Component List

Arduino UNO

• Microcontroller board based on the ATmega328P.
• It has 14 digital input/output pins, 6 analog inputs, a 16 MHz quartz crystal, a USB connection, a power jack, an ICSP header, and a reset button.

Relay 4 Channel 5V

• A 4-channel relay module capable of controlling multiple devices, each channel capable of handling 5V.

xcluma MCP4725 I2C DAC Breakout Module

• A digital-to-analog converter module that interfaces with microcontrollers over the I2C bus.

tb6600 Micro Stepping Motor Driver

• A stepper motor driver that allows for precise control over stepper motors.

FLYSKY FS-IA6

• A 6-channel receiver for remote control applications.

12V to 5V Step Down Power Converter

• A power converter that steps down voltage from 9-36V to a stable 5V output.

Battery Pack

• A power source for the circuit.

Rocker Switch

• A switch to control the power supply to the circuit.

Wiring Details

Arduino UNO

• 5V: Connected to the 5V power rail which powers the relay module, I2C DAC, 6-channel receiver, and the other Arduino UNO.
• GND: Connected to the ground rail which is common for all components.
• Digital Pins (D2-D13): Various digital pins are used to interface with the relay module, stepper motor driver, and the 6-channel receiver.
• Analog Pins (A4, A5): Used for I2C communication with the DAC module.

Relay 4 Channel 5V

• VCC: Connected to the 5V power rail.
• GND: Connected to the ground rail.
• IN1-IN4: Controlled by digital pins from the Arduino UNO.
• COM1-COM4: Common pins for relay channels.
• NO1-NO4: Normally open contacts for relay channels.
• NC1-NC4: Normally closed contacts for relay channels.

xcluma MCP4725 I2C DAC Breakout Module

• VCC: Connected to the 5V power rail.
• GND: Connected to the ground rail.
• SDA, SCL: Connected to the I2C pins on the Arduino UNO.

tb6600 Micro Stepping Motor Driver

• ENA-, ENA+: Enable pins for the motor driver.
• DIR-, DIR+: Direction control pins for the motor driver.
• PUL-, PUL+: Pulse control pins for the motor driver.
• A-, A+, B-, B+: Motor connection pins.
• VCC: Connected to the relay module.
• GND: Connected to the ground rail.

FLYSKY FS-IA6

• 5V: Connected to the 5V power rail.
• GND: Connected to the ground rail.
• CH1-CH6: Channels connected to digital pins on the Arduino UNO.

12V to 5V Step Down Power Converter

• VIN 9V-36V: Input voltage from the battery pack.
• 5V OUTPUT: Connected to the 5V power rail.
• GND: Connected to the ground rail.

Battery Pack

• +: Connected to the rocker switch.
• -: Connected to the ground rail.

Rocker Switch

• Input: Connected to the positive terminal of the battery pack.
• Output: Connected to the step-down converter and the motor driver.

Documented Code

Arduino UNO (Primary Controller)

void setup() {
  // put your setup code here, to run once:

}

void loop() {
  // put your main code here, to run repeatedly:

}

Arduino UNO (Secondary Controller)

void setup() {
  // put your setup code here, to run once:

}

void loop() {
  // put your main code here, to run repeatedly:

}

Note: The actual functionality of the code is not provided in the input and would typically include initialization of I/O pins, setup of I2C communication, and the main control loop with logic to handle inputs and outputs to the various components.