Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an Arduino UNO microcontroller, various sensors, motors, and power components. The circuit is designed to interface with a reflectance sensor array, an ultrasonic sensor, DC motors with encoders, servos, and a motor driver. Power is supplied through a PowerBoost 1000 Basic Terminal USB and a 4xAA battery pack.

Component List

1. Arduino UNO

   • Description: 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. Reflectance Sensor Array 9 pin

   • Description: Sensor array for detecting reflectance.
   • Pins: ON, GND, 1, 2, 3, 4, VCC, 5, 6, 7, 8, 9

3. Ultrasonic Sensor

   • Description: Sensor for measuring distance using ultrasonic waves.
   • Pins: +VCC, Trigger, Echo, GND

4. DC Motor with Encoder

   • Description: DC motor with an integrated encoder for feedback.
   • Pins: Encoder B, Encoder A, GND - Encoder, VCC - Encoder Power, Motor +ve, Motor -ve

5. Servo

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

6. PowerBoost 1000 Basic Terminal USB

   • Description: Power supply module that boosts voltage to 5V.
   • Pins: VBAT, GND, ENABLE, LBO, 5.0V

7. 4xAA Battery Pack

   • Description: Battery pack holding four AA batteries.
   • Pins: POS, NEG

8. Motor Driver

   • Description: Motor driver for controlling DC motors.
   • Pins: VB+, VB-, M1A, M1B, M2A, M2B, 5V, GND

Wiring Details

Arduino UNO

• 3.3V connected to Reflectance Sensor Array 9 pin (VCC)
• GND connected to:
  • PowerBoost 1000 Basic Terminal USB (GND)
  • DC Motor with Encoder (GND - Encoder)
  • 4xAA Battery Pack (NEG)
  • Reflectance Sensor Array 9 pin (GND)
  • Ultrasonic Sensor (GND)
  • Motor Driver (VB-)
  • Motor Driver (GND)
  • Servo (GND)
• 5V connected to:
  • DC Motor with Encoder (VCC - Encoder Power)
  • Ultrasonic Sensor (+VCC)
• A0 connected to Reflectance Sensor Array 9 pin (2)
• A1 connected to Reflectance Sensor Array 9 pin (3)
• A2 connected to Reflectance Sensor Array 9 pin (4)
• A3 connected to Reflectance Sensor Array 9 pin (5)
• A4 connected to Reflectance Sensor Array 9 pin (6)
• A5 connected to Reflectance Sensor Array 9 pin (7)
• D13 connected to Ultrasonic Sensor (Trigger)
• D12 connected to Ultrasonic Sensor (Echo)
• D11 connected to Motor Driver (M1B)
• D10 connected to Servo (PWM)
• D9 connected to Servo (PWM)
• D6 connected to Motor Driver (M1A)
• D5 connected to Motor Driver (M2B)
• D3 connected to Motor Driver (M2A)

Reflectance Sensor Array 9 pin

• VCC connected to Arduino UNO (3.3V)
• GND connected to Arduino UNO (GND)
• 2 connected to Arduino UNO (A0)
• 3 connected to Arduino UNO (A1)
• 4 connected to Arduino UNO (A2)
• 5 connected to Arduino UNO (A3)
• 6 connected to Arduino UNO (A4)
• 7 connected to Arduino UNO (A5)

Ultrasonic Sensor

• +VCC connected to Arduino UNO (5V)
• GND connected to Arduino UNO (GND)
• Trigger connected to Arduino UNO (D13)
• Echo connected to Arduino UNO (D12)

DC Motor with Encoder

• GND - Encoder connected to Arduino UNO (GND)
• VCC - Encoder Power connected to Arduino UNO (5V)
• Motor +ve connected to Motor Driver (M2A)
• Motor -ve connected to Motor Driver (M2B)

Servo

• GND connected to Arduino UNO (GND)
• VCC connected to PowerBoost 1000 Basic Terminal USB (5.0V)
• PWM connected to Arduino UNO (D10)

PowerBoost 1000 Basic Terminal USB

• 5.0V connected to Servo (VCC)
• GND connected to Arduino UNO (GND)

4xAA Battery Pack

• POS connected to Motor Driver (VB+)
• NEG connected to Arduino UNO (GND)

Motor Driver

• VB+ connected to 4xAA Battery Pack (POS)
• VB- connected to Arduino UNO (GND)
• M1A connected to Arduino UNO (D6)
• M1B connected to Arduino UNO (D11)
• M2A connected to Arduino UNO (D3)
• M2B connected to Arduino UNO (D5)
• GND connected to Arduino UNO (GND)

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:

}

Documentation (documentation.txt)

This document provides a comprehensive overview of the circuit, including a summary, component list, wiring details, and documented code. Each component is described, and its connections are detailed to ensure clarity and ease of understanding.