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Arduino UNO Bluetooth-Controlled LED

Image of Arduino UNO Bluetooth-Controlled LED

Circuit Documentation

Summary

This circuit consists of an Arduino UNO microcontroller, an HC-05 Bluetooth Module, and a red LED. The Arduino UNO serves as the central control unit, interfacing with the Bluetooth module for wireless communication and controlling the LED.

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 control unit, interfacing with the Bluetooth module and controlling the LED.

HC-05 Bluetooth Module

  • Description: A Bluetooth module used for wireless communication.
  • Pins: Key, VCC, GND, TXD, RXD, State
  • Purpose in Circuit: Provides wireless communication capabilities to the circuit.

LED: Two Pin (red)

  • Description: A red LED with two pins.
  • Pins: Cathode, Anode
  • Purpose in Circuit: Provides visual feedback by lighting up when powered.

Comment

  • Description: Placeholder for comments in the circuit design.
  • Pins: None
  • Purpose in Circuit: Used for adding comments in the circuit design.

Wiring Details

Arduino UNO

  • 5V: Connected to VCC of the HC-05 Bluetooth Module.
  • GND: Connected to GND of the HC-05 Bluetooth Module and Cathode of the LED.
  • D13: Connected to Anode of the LED.
  • D1: Connected to RXD of the HC-05 Bluetooth Module.
  • D0: Connected to TXD of the HC-05 Bluetooth Module.

HC-05 Bluetooth Module

  • VCC: Connected to 5V of the Arduino UNO.
  • GND: Connected to GND of the Arduino UNO.
  • TXD: Connected to D0 of the Arduino UNO.
  • RXD: Connected to D1 of the Arduino UNO.

LED: Two Pin (red)

  • Cathode: Connected to GND of the Arduino UNO.
  • Anode: Connected to D13 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:

}

Documentation (documentation.txt)


This documentation provides a comprehensive overview of the circuit, including a summary, detailed component descriptions, wiring details, and the code used in the Arduino UNO.