Circuit Documentation

Summary

This circuit involves an Arduino UNO microcontroller interfacing with various components including pushbuttons, LEDs, an I2C LCD, and a BH1750 light sensor. The circuit is designed to demonstrate basic input and output operations, as well as I2C communication.

Component List

Pushbutton

• Description: A simple pushbutton used for user input.
• Pins: Pin 1 (in), Pin 2 (in), Pin 3 (out), Pin 4 (out)

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

16x2 I2C LCD

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

BH1750

• Description: A digital light sensor with I2C interface.
• Pins: VCC, GND, SCL, SDA, ADDR

LED: Two Pin (red)

• Description: A red LED with two pins.
• Pins: cathode, anode

LED: Two Pin (white)

• Description: A white LED with two pins.
• Pins: cathode, anode

Wiring Details

Pushbutton

• Pin 2 (in) connected to Arduino UNO D4
• Pin 4 (out) connected to GND

Arduino UNO

• D2 connected to anode of both red LEDs
• D3 connected to anode of both white LEDs
• D4 connected to Pin 2 (in) of Pushbutton
• A4 connected to SDA of BH1750 and 16x2 I2C LCD
• A5 connected to SCL of BH1750 and 16x2 I2C LCD
• 5V connected to VCC of BH1750 and 16x2 I2C LCD
• GND connected to cathode of both white LEDs, cathode of both red LEDs, Pin 4 (out) of Pushbutton, GND of BH1750, and GND of 16x2 I2C LCD

16x2 I2C LCD

• GND connected to GND
• VCC connected to 5V
• SDA connected to A4
• SCL connected to A5

BH1750

• VCC connected to 5V
• GND connected to GND
• SDA connected to A4
• SCL connected to A5

LED: Two Pin (red)

• anode connected to D2
• cathode connected to GND

LED: Two Pin (white)

• anode connected to D3
• cathode connected to GND

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 microcontroller.