Circuit Documentation

Summary

This circuit involves an Arduino UNO microcontroller interfacing with various components including a servo motor, rotary potentiometers, pushbuttons, LEDs, and an LCD display. The circuit is designed to demonstrate basic input and output operations, such as reading analog values from potentiometers, controlling a servo motor, and displaying information on an LCD.

Component List

Servo

• Description: A servo motor used for precise control of angular position.
• Pins: GND, VCC, PWM

Rotary Potentiometer (10k Ohms)

• Description: A variable resistor used to provide adjustable resistance.
• Pins: leg1, wiper, leg2
• Properties:
  • Resistance: 10,000 Ohms

Pushbutton

• Description: A simple pushbutton switch used for user input.
• Pins: Pin 1, Pin 2, Pin 3, Pin 4

LED: Two Pin (Red)

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

LED: Two Pin (Green)

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

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

LCD 20x4 I2C

• Description: A 20x4 character LCD display with I2C interface.
• Pins: GND, 5V, SCA, SCL

Wiring Details

Servo

• VCC: Connected to 5V (Arduino UNO, Rotary Potentiometer, LCD 20x4 I2C)
• GND: Connected to GND (Arduino UNO, Pushbutton, Rotary Potentiometer)
• PWM: Connected to D9 (Arduino UNO)

Rotary Potentiometer (1)

• leg1: Connected to 5V (Arduino UNO, Servo, LCD 20x4 I2C)
• wiper: Connected to A0 (Arduino UNO)
• leg2: Connected to GND (Arduino UNO, Pushbutton, Servo)

Rotary Potentiometer (2)

• leg1: Connected to 5V (Arduino UNO, Servo, LCD 20x4 I2C)
• wiper: Connected to A1 (Arduino UNO)
• leg2: Connected to GND (Arduino UNO, Pushbutton, Servo)

Pushbutton (1)

• Pin 1: Connected to D2 (Arduino UNO)
• Pin 2: Connected to GND (Arduino UNO, Servo, Rotary Potentiometer)
• Pin 3: Not connected
• Pin 4: Not connected

Pushbutton (2)

• Pin 1: Connected to D3 (Arduino UNO)
• Pin 2: Connected to GND (Arduino UNO, Servo, Rotary Potentiometer)
• Pin 3: Not connected
• Pin 4: Not connected

LED: Two Pin (Red)

• cathode: Connected to GND (Arduino UNO, LED: Two Pin (Green))
• anode: Connected to D4 (Arduino UNO)

LED: Two Pin (Green)

• cathode: Connected to GND (Arduino UNO, LED: Two Pin (Red))
• anode: Connected to D5 (Arduino UNO)

Arduino UNO

• 5V: Connected to VCC (Servo, Rotary Potentiometer, LCD 20x4 I2C)
• GND: Connected to GND (Servo, Pushbutton, Rotary Potentiometer, LED: Two Pin (Red), LED: Two Pin (Green))
• A0: Connected to wiper (Rotary Potentiometer 1)
• A1: Connected to wiper (Rotary Potentiometer 2)
• A4: Connected to SCA (LCD 20x4 I2C)
• A5: Connected to SCL (LCD 20x4 I2C)
• D2: Connected to Pin 1 (Pushbutton 1)
• D3: Connected to Pin 1 (Pushbutton 2)
• D4: Connected to anode (LED: Two Pin (Red))
• D5: Connected to anode (LED: Two Pin (Green))
• D9: Connected to PWM (Servo)

LCD 20x4 I2C

• GND: Connected to GND (Arduino UNO, Rotary Potentiometer, Pushbutton)
• 5V: Connected to VCC (Arduino UNO, Servo, Rotary Potentiometer)
• SCA: Connected to A4 (Arduino UNO)
• SCL: Connected to A5 (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)