Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an Arduino UNO microcontroller, an HC-05 Bluetooth module, an HC-SR04 Ultrasonic Sensor, a red LED, a resistor, and a battery. The circuit is designed to interface with various sensors and actuators, with the Arduino UNO serving as the central control unit.

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

HC-05 Bluetooth Module

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

HC-SR04 Ultrasonic Sensor

• Description: An ultrasonic sensor for distance measurement.
• Pins: VCC, TRIG, ECHO, GND

LED: Two Pin (red)

• Description: A red LED for visual indication.
• Pins: cathode, anode

Resistor

• Description: A resistor with a resistance of 220 Ohms.
• Pins: pin1, pin2
• Properties:
  • Resistance: 220 Ohms

Battery

• Description: A power source for the circuit.
• Pins: -, +

Wiring Details

Arduino UNO

• GND: Connected to the GND pins of the HC-05 Bluetooth Module, HC-SR04 Ultrasonic Sensor, and the cathode of the red LED.
• 5V: Connected to the VCC pins of the HC-05 Bluetooth Module and HC-SR04 Ultrasonic Sensor.
• Vin: Connected to the + pin of the battery.
• D8: Connected to pin2 of the resistor.
• D2: Connected to the TRIG pin of the HC-SR04 Ultrasonic Sensor.
• D3: Connected to the ECHO pin of the HC-SR04 Ultrasonic Sensor.
• D1: Connected to the RXD pin of the HC-05 Bluetooth Module.
• D0: Connected to the TXD pin of the HC-05 Bluetooth Module.

HC-05 Bluetooth Module

• GND: Connected to the GND pin of the Arduino UNO.
• VCC: Connected to the 5V 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.

HC-SR04 Ultrasonic Sensor

• GND: Connected to the GND pin of the Arduino UNO.
• VCC: Connected to the 5V pin of the Arduino UNO.
• TRIG: Connected to the D2 pin of the Arduino UNO.
• ECHO: Connected to the D3 pin of the Arduino UNO.

LED: Two Pin (red)

• cathode: Connected to the GND pin of the Arduino UNO.
• anode: Connected to pin1 of the resistor.

Resistor

• pin1: Connected to the anode of the red LED.
• pin2: Connected to the D8 pin of the Arduino UNO.

Battery

• -: Connected to the GND pin of the Arduino UNO.
• +: Connected to the Vin 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 document provides a comprehensive overview of the circuit, including a summary, component list, wiring details, and documented code.