Circuit Documentation

Summary

This document provides a detailed overview of a simple circuit involving an Arduino UNO microcontroller and a 5V relay. The Arduino UNO controls the relay through one of its digital output pins. The relay can be used to switch higher power devices on and off.

Component List

Arduino UNO

• Description: A microcontroller board based on the ATmega328P.
• Pins: UNUSED, IOREF, Reset, 3.3V, 5V, GND, Vin, A0, A1, A2, A3, A4, A5, SCL, SDA, AREF, D13, D12, D11, D10, D9, D8, D7, D6, D5, D4, D3, D2, D1, D0
• Purpose in Circuit: Acts as the main controller for the circuit, providing control signals to the relay.

5V Relay

• Description: An electromechanical switch that can be controlled by a low voltage signal.
• Pins: Normally Open, Common terminal, Normally Closed, In, GND, VCC
• Purpose in Circuit: Used to switch higher power devices on and off based on the control signal from the Arduino UNO.

Wiring Details

Arduino UNO

• Vin: Connected to VCC of the 5V relay.
• GND: Connected to GND of the 5V relay.
• D9: Connected to In of the 5V relay.

5V Relay

• VCC: Connected to Vin of the Arduino UNO.
• GND: Connected to GND of the Arduino UNO.
• In: Connected to D9 of the Arduino UNO.

Documented Code

Arduino UNO Code (sketch.ino)

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

}

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

}

Additional Documentation (documentation.txt)

This document provides a comprehensive overview of the circuit, including the components used, their connections, and the code running on the Arduino UNO.