Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an Arduino Nano, a TCS3200 color sensor, a servo motor, a breadboard power supply module, a load cell, an HX711 bridge sensor interface, a 28BYJ-48 stepper motor, and a ULN 2003 driver. The circuit is designed to interface these components for various sensing and actuation tasks.

Component List

1. Arduino Nano

   • Description: A small, complete, and breadboard-friendly board based on the ATmega328P.
   • Pins: D1/TX, D0/RX, RESET, GND, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11/MOSI, D12/MISO, VIN, 5V, A7, A6, A5, A4, A3, A2, A1, A0, AREF, 3V3, D13/SCK

2. TCS3200

   • Description: A color sensor that can detect and measure a nearly limitless range of visible colors.
   • Pins: GND, OUT, S2, S3, VCC, LED, S0, S1

3. Servo

   • Description: A small motor with a feedback mechanism to control angular position.
   • Pins: GND, VCC, PWM

4. MB102 Breadboard Power Supply Module 3.3V/5V

   • Description: A power supply module that provides 3.3V and 5V outputs.
   • Pins: VCC, GND, 3.3V, 5V

5. Load Cell - Red/white/black/green

   • Description: A sensor used to measure weight or force.
   • Pins: E+, A-, E-, A+

6. HX711 - Bridge Sensor Interface

   • Description: A precision 24-bit analog-to-digital converter (ADC) designed for weigh scales and industrial control applications to interface directly with a bridge sensor.
   • Pins: E+, E-, A-, A+, B-, B+, GND - GROUND, DATA (OUT), SCK - CLOCK (IN), 3.3/3.5V Supply

7. 28BYJ-48 Stepper Motor

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

8. ULN 2003

   • Description: A high-voltage, high-current Darlington transistor array.
   • Pins: IN1, IN2, IN3, IN4, IN5, IN6, IN7, GND, +, COIL1, COIL2, COIL3, COIL4, COIL5

Wiring Details

Arduino Nano

• D1/TX connected to ULN 2003 IN2
• D0/RX connected to ULN 2003 IN1
• D2 connected to ULN 2003 IN3 and TCS3200 S0
• D3 connected to TCS3200 S1
• D4 connected to ULN 2003 IN4 and TCS3200 S2
• D5 connected to TCS3200 S3
• D6 connected to TCS3200 OUT
• D8 connected to Servo PWM
• D9 connected to HX711 SCK - CLOCK (IN)
• D10 connected to HX711 DATA (OUT)
• 5V connected to MB102 Breadboard Power Supply Module VCC, HX711 3.3/3.5V Supply, Servo VCC, and TCS3200 VCC
• GND connected to Servo GND, TCS3200 GND, HX711 GND - GROUND, ULN 2003 GND, and MB102 Breadboard Power Supply Module GND

TCS3200

• S0 connected to Arduino Nano D2
• S1 connected to Arduino Nano D3
• S2 connected to Arduino Nano D4
• S3 connected to Arduino Nano D5
• OUT connected to Arduino Nano D6
• VCC connected to Arduino Nano 5V
• GND connected to Arduino Nano GND

Servo

• PWM connected to Arduino Nano D8
• VCC connected to Arduino Nano 5V
• GND connected to Arduino Nano GND

MB102 Breadboard Power Supply Module 3.3V/5V

• VCC connected to Arduino Nano 5V, HX711 3.3/3.5V Supply, Servo VCC, and TCS3200 VCC
• GND connected to Arduino Nano GND, Servo GND, TCS3200 GND, HX711 GND - GROUND, and ULN 2003 GND

Load Cell - Red/white/black/green

• E+ connected to HX711 E+
• A- connected to HX711 A-
• E- connected to HX711 E-
• A+ connected to HX711 A+

HX711 - Bridge Sensor Interface

• E+ connected to Load Cell E+
• A- connected to Load Cell A-
• E- connected to Load Cell E-
• A+ connected to Load Cell A+
• 3.3/3.5V Supply connected to Arduino Nano 5V
• GND - GROUND connected to Arduino Nano GND
• DATA (OUT) connected to Arduino Nano D10
• SCK - CLOCK (IN) connected to Arduino Nano D9

28BYJ-48 Stepper Motor

• BLUE connected to ULN 2003 COIL1
• PINK connected to ULN 2003 COIL2
• YELLOW connected to ULN 2003 COIL3
• ORANGE connected to ULN 2003 COIL4
• RED connected to ULN 2003 COIL5

ULN 2003

• IN1 connected to Arduino Nano D0/RX
• IN2 connected to Arduino Nano D1/TX
• IN3 connected to Arduino Nano D2 and TCS3200 S0
• IN4 connected to Arduino Nano D4 and TCS3200 S2
• GND connected to Arduino Nano GND
• + connected to MB102 Breadboard Power Supply Module VCC
• COIL1 connected to 28BYJ-48 Stepper Motor BLUE
• COIL2 connected to 28BYJ-48 Stepper Motor PINK
• COIL3 connected to 28BYJ-48 Stepper Motor YELLOW
• COIL4 connected to 28BYJ-48 Stepper Motor ORANGE
• COIL5 connected to 28BYJ-48 Stepper Motor RED

Documented Code

Arduino Nano 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 document provides a comprehensive overview of the circuit, including a detailed list of components, their wiring connections, and the code used for the Arduino Nano.