Circuit Documentation

Summary

This circuit involves an Arduino UNO microcontroller interfacing with various components including an LCD display, a rotary potentiometer, a pushbutton, a TCS3472 color light-to-digital converter, a ULN2003A breakout board, and a 28BYJ-48 stepper motor. The circuit is designed to demonstrate basic interfacing and control of these components using the Arduino platform.

Component List

1. 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

2. LCD Display (16 pin)

   • Description: A 16-pin LCD display module.
   • Pins: VSS, VDD, VO, RS, R_W, E, DB0, DB1, DB2, DB3, DB4, DB5, DB6, DB7, A, K

3. Rotary Potentiometer

   • Description: A variable resistor used to adjust voltage levels.
   • Pins: leg1, wiper, leg2
   • Properties: Resistance: 10000 Ohms

4. TCS3472 COLOR LIGHT-TO-DIGITAL CONVERTER with IR FILTER

   • Description: A color sensor that converts light to digital values.
   • Pins: LED, INT, SDA, SCL, 3V3, GND, VIN

5. Pushbutton

   • Description: A simple pushbutton switch.
   • Pins: Pin 3 (out), Pin 4 (out), Pin 1 (in), Pin 2 (in)

6. Resistor

   • Description: A passive electrical component that resists the flow of current.
   • Pins: pin1, pin2
   • Properties: Resistance: 220 Ohms

7. ULN2003A breakout board

   • Description: A Darlington transistor array used to drive high-current loads.
   • Pins: In 1, In 2, In 3, In 4, In 5, In 6, In 7, 0V, +5V, ON/OFF jumper switch, BLUE wire, PINK wire, YELLOW wire, ORANGE wire, RED wire

8. 28BYJ-48 Stepper Motor

   • Description: A small stepper motor used for precise control of angular position.
   • Pins: BLUE, PINK, YELLOW, ORANGE, RED

Wiring Details

Arduino UNO

• D2 to Pushbutton Pin 1 (in)
• 3.3V to TCS3472 COLOR LIGHT-TO-DIGITAL CONVERTER with IR FILTER 3V3
• GND to TCS3472 COLOR LIGHT-TO-DIGITAL CONVERTER with IR FILTER GND
• A4 to TCS3472 COLOR LIGHT-TO-DIGITAL CONVERTER with IR FILTER SDA
• A5 to TCS3472 COLOR LIGHT-TO-DIGITAL CONVERTER with IR FILTER SCL
• D12 to ULN2003A breakout board In 1
• D11 to ULN2003A breakout board In 2
• D10 to ULN2003A breakout board In 3
• D9 to ULN2003A breakout board In 4
• D8 to LCD Display (16 pin) DB7
• D7 to LCD Display (16 pin) DB6
• D6 to LCD Display (16 pin) DB5
• D5 to LCD Display (16 pin) DB4
• D4 to LCD Display (16 pin) E
• D3 to LCD Display (16 pin) RS

LCD Display (16 pin)

• VSS to Rotary Potentiometer leg1
• R_W to Rotary Potentiometer leg1
• K to Rotary Potentiometer leg1
• VO to Rotary Potentiometer wiper
• VDD to Rotary Potentiometer leg2
• VDD to Resistor pin2
• A to Resistor pin1

Rotary Potentiometer

• leg1 to Pushbutton Pin 3 (out)
• leg1 to LCD Display (16 pin) VSS
• leg1 to LCD Display (16 pin) R_W
• leg1 to LCD Display (16 pin) K
• wiper to LCD Display (16 pin) VO
• leg2 to Resistor pin2
• leg2 to LCD Display (16 pin) VDD

Pushbutton

• Pin 3 (out) to Rotary Potentiometer leg1
• Pin 1 (in) to Arduino UNO D2

Resistor

• pin2 to Rotary Potentiometer leg2
• pin2 to LCD Display (16 pin) VDD
• pin1 to LCD Display (16 pin) A

TCS3472 COLOR LIGHT-TO-DIGITAL CONVERTER with IR FILTER

• 3V3 to Arduino UNO 3.3V
• GND to Arduino UNO GND
• SDA to Arduino UNO A4
• SCL to Arduino UNO A5

ULN2003A breakout board

• 0V to Rotary Potentiometer leg1
• +5V to Rotary Potentiometer leg2
• In 1 to Arduino UNO D12
• In 2 to Arduino UNO D11
• In 3 to Arduino UNO D10
• In 4 to Arduino UNO D9
• BLUE wire to 28BYJ-48 Stepper Motor BLUE
• PINK wire to 28BYJ-48 Stepper Motor PINK
• YELLOW wire to 28BYJ-48 Stepper Motor YELLOW
• ORANGE wire to 28BYJ-48 Stepper Motor ORANGE
• RED wire to 28BYJ-48 Stepper Motor RED

28BYJ-48 Stepper Motor

• BLUE to ULN2003A breakout board BLUE wire
• PINK to ULN2003A breakout board PINK wire
• YELLOW to ULN2003A breakout board YELLOW wire
• ORANGE to ULN2003A breakout board ORANGE wire
• RED to ULN2003A breakout board RED wire

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 detailed list of components, their wiring connections, and the code used for the Arduino UNO microcontroller.