Circuit Documentation

Summary of the Circuit

This circuit is designed around an Arduino UNO microcontroller and includes a variety of components such as an LCD screen with I2C interface, two IR sensors, a red LED, and a buzzer. The Arduino UNO controls the LED and buzzer and reads inputs from the IR sensors. The LCD screen is used to display data or messages. The circuit is powered by the Arduino's 5V output, and all components share a common ground connection.

Component List

LED: Two Pin (red)

• Description: A basic red LED used for indication purposes.
• Pins: cathode, anode

Buzzer

• Description: An audible signaling device.
• Pins: PIN, GND

IR Sensor

• Description: An infrared sensor used for detecting objects or motion.
• Pins: out, gnd, vcc

Arduino UNO

• Description: A microcontroller board based on the ATmega328P.
• Pins: UNUSED, IOREF, Reset, 3.3V, 5V, GND, Vin, A0-A5, SCL, SDA, AREF, D0-D13

LCD Screen 16x2 I2C

• Description: A 16x2 character LCD display with an I2C interface.
• Pins: SCL, SDA, VCC, GND

Wiring Details

LED: Two Pin (red)

• Cathode: Connected to GND of Arduino UNO
• Anode: Connected to pin D5 of Arduino UNO

Buzzer

• PIN: Connected to pin D4 of Arduino UNO
• GND: Connected to GND of Arduino UNO

IR Sensor (Two Instances)

• Out: Each sensor's output is connected to pins D3 and D2 of Arduino UNO respectively.
• Gnd: Connected to GND of Arduino UNO
• Vcc: Connected to 5V of Arduino UNO

Arduino UNO

• 5V: Provides power to IR sensors and LCD screen
• GND: Common ground for all components
• D2-D5: Digital pins connected to IR sensors, LED, and buzzer
• A4 (SCL), A5 (SDA): Analog pins used for I2C communication with the LCD screen

LCD Screen 16x2 I2C

• SCL: Connected to pin A4 (SCL) of Arduino UNO
• SDA: Connected to pin A5 (SDA) of Arduino UNO
• VCC: Connected to 5V of Arduino UNO
• GND: Connected to GND of 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 Notes (documentation.txt)

No additional code documentation was provided.