Circuit Documentation

Summary

This circuit involves an Arduino UNO microcontroller, two 1-Channel Relays (5V 10A), and an HC-05 Bluetooth Module. The Arduino UNO serves as the central controller, interfacing with the relays and the Bluetooth module to control external devices wirelessly.

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

1-Channel Relay (5V 10A)

• Description: A relay module that allows a microcontroller to control high voltage devices.
• Pins: NC, signal, C, power, NO, ground

HC-05 Bluetooth Module

• Description: A Bluetooth module for wireless communication.
• Pins: Key, VCC, TXD, RXD, State, GND

Wiring Details

Arduino UNO

• 5V: Connected to the power pins of both 1-Channel Relays and the VCC pin of the HC-05 Bluetooth Module.
• GND: Connected to the ground pins of both 1-Channel Relays and the GND pin of the HC-05 Bluetooth Module.
• D5: Connected to the signal pin of the first 1-Channel Relay.
• D4: Connected to the signal pin of the second 1-Channel Relay.
• D1: Connected to the RXD pin of the HC-05 Bluetooth Module.
• D0: Connected to the TXD pin of the HC-05 Bluetooth Module.

1-Channel Relay (5V 10A) - First Relay

• Power: Connected to the 5V pin of the Arduino UNO.
• Ground: Connected to the GND pin of the Arduino UNO.
• Signal: Connected to the D5 pin of the Arduino UNO.

1-Channel Relay (5V 10A) - Second Relay

• Power: Connected to the 5V pin of the Arduino UNO.
• Ground: Connected to the GND pin of the Arduino UNO.
• Signal: Connected to the D4 pin of the Arduino UNO.

HC-05 Bluetooth Module

• VCC: Connected to the 5V pin of the Arduino UNO.
• GND: Connected to the GND pin of the Arduino UNO.
• RXD: Connected to the D1 pin of the Arduino UNO.
• TXD: Connected to the D0 pin 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 documentation provides a comprehensive overview of the circuit, including a summary, detailed component list, wiring details, and the code used in the Arduino UNO.