Circuit Documentation

Summary

This circuit consists of an Arduino UNO microcontroller and a seven-segment display. The Arduino UNO is programmed to control the seven-segment display by setting specific pins to HIGH or LOW states.

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: To control the seven-segment display.

Seven Segment Display (Wokwi Compatible)

• Description: A display device used to show decimal numerals.
• Pins: G, F, COM.2, B, A, E, D, COM.1, C, DP
• Purpose in Circuit: To display numbers based on the signals received from the Arduino UNO.

Wiring Details

Arduino UNO

• D7: Connected to COM.1 of the Seven Segment Display
• D6: Connected to A of the Seven Segment Display

Seven Segment Display (Wokwi Compatible)

• COM.1: Connected to D7 of the Arduino UNO
• A: Connected to D6 of the Arduino UNO

Code Documentation

/*
 * This Arduino sketch controls a seven-segment display.
 * It sets pin D7 to HIGH and pin D6 to LOW.
 */

void setup() {
  // Initialize digital pin D7 as an output.
  pinMode(7, OUTPUT);
  // Initialize digital pin D6 as an output.
  pinMode(6, OUTPUT);

  // Set D7 to HIGH
  digitalWrite(7, HIGH);
  // Set D6 to LOW
  digitalWrite(6, LOW);
}

void loop() {
  // No repeated actions needed in the loop.
}

Code Explanation

• setup(): This function runs once when the Arduino is powered on or reset. It initializes pins D7 and D6 as outputs and sets D7 to HIGH and D6 to LOW.
• loop(): This function runs repeatedly after the setup function. In this case, it is empty because no repeated actions are needed.