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Dual Arduino UNO LED Control with Adjustable Brightness

Image of Dual Arduino UNO LED Control with Adjustable Brightness

Circuit Documentation

Summary

This circuit involves two Arduino UNO microcontrollers, two LEDs (one green and one blue), two resistors, and a trimmer potentiometer. The circuit is designed to control the LEDs using the Arduino microcontrollers, with the trimmer potentiometer providing adjustable resistance.

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

LED: Two Pin (green)

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

LED: Two Pin (blue)

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

Resistor

  • Description: A resistor with a resistance of 100,000 Ohms.
  • Pins: pin1, pin2
  • Properties: Resistance: 100,000 Ohms

Resistor

  • Description: A resistor with a resistance of 100,000 Ohms.
  • Pins: pin1, pin2
  • Properties: Resistance: 100,000 Ohms

Trimmer Potentiometer

  • Description: A trimmer potentiometer with a resistance of 10,000 Ohms.
  • Pins: leg1, wiper, leg2
  • Properties: Resistance: 10,000 Ohms

Wiring Details

Arduino UNO

  • 5V Pin:

    • Connected to pin1 of a resistor
    • Connected to leg1 of the trimmer potentiometer
  • GND Pin:

    • Connected to the cathode of the green LED
    • Connected to the cathode of the blue LED
    • Connected to leg2 of the trimmer potentiometer
  • A0 Pin:

    • Connected to pin1 of a resistor
    • Connected to the anode of the blue LED

LED: Two Pin (green)

  • Cathode:

    • Connected to GND of Arduino UNO
  • Anode:

    • Connected to pin2 of a resistor

LED: Two Pin (blue)

  • Cathode:

    • Connected to GND of Arduino UNO
  • Anode:

    • Connected to pin1 of a resistor

Resistor

  • Pin1:

    • Connected to 5V of Arduino UNO
    • Connected to leg1 of the trimmer potentiometer
  • Pin2:

    • Connected to the anode of the green LED

Resistor

  • Pin1:

    • Connected to A0 of Arduino UNO
    • Connected to the anode of the blue LED
  • Pin2:

    • Connected to the wiper of the trimmer potentiometer

Trimmer Potentiometer

  • Leg1:

    • Connected to 5V of Arduino UNO
    • Connected to pin1 of a resistor
  • Wiper:

    • Connected to pin2 of a resistor
  • Leg2:

    • Connected to GND of Arduino UNO

Documented Code

Arduino UNO (Instance 1)

File Name: sketch.ino

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

}

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

}

File Name: documentation.txt


Arduino UNO (Instance 2)

File Name: sketch.ino

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

}

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

}

File Name: documentation.txt