Circuit Documentation

Summary

This circuit involves an Arduino UNO microcontroller, an HC-05 Bluetooth module, a red LED, and two resistors. The Arduino UNO serves as the central controller, interfacing with the Bluetooth module for wireless communication and controlling the LED through a resistor to limit current.

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: Central controller for the circuit.

HC-05 Bluetooth Module

• Description: A Bluetooth module for wireless communication.
• Pins: Key, VCC, GND, TXD, RXD, State
• Purpose in Circuit: Enables wireless communication with the Arduino UNO.

Resistor (200 Ohms)

• Description: A resistor with a resistance of 200 Ohms.
• Pins: pin1, pin2
• Purpose in Circuit: Current limiting for the LED.

Resistor (220 Ohms)

• Description: A resistor with a resistance of 220 Ohms.
• Pins: pin1, pin2
• Purpose in Circuit: Current limiting for the LED.

LED: Two Pin (red)

• Description: A red LED.
• Pins: cathode, anode
• Purpose in Circuit: Visual indicator controlled by the Arduino UNO.

Wiring Details

Arduino UNO

• GND is connected to the cathode of the LED.
• D13 is connected to pin1 of the 220 Ohm resistor.
• 5V is connected to VCC of the HC-05 Bluetooth Module.
• GND is connected to GND of the HC-05 Bluetooth Module.
• D1 is connected to RXD of the HC-05 Bluetooth Module.
• D0 is connected to TXD of the HC-05 Bluetooth Module.

HC-05 Bluetooth Module

• VCC is connected to 5V of the Arduino UNO.
• GND is connected to GND of the Arduino UNO.
• RXD is connected to D1 of the Arduino UNO.
• TXD is connected to D0 of the Arduino UNO.

Resistor (220 Ohms)

• pin1 is connected to D13 of the Arduino UNO.
• pin2 is connected to the anode of the LED.

LED: Two Pin (red)

• cathode is connected to GND of the Arduino UNO.
• anode is connected to pin2 of the 220 Ohm resistor.

Documented Code

sketch.ino

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

}

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

}

documentation.txt