Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an Arduino UNO, a 2 x AA Battery Mount, a Micro servo 9G, multiple motor and wheels, an Ultrasonic Sensor, an L293D motor driver, and an HC-06 Bluetooth module. The circuit is designed to control motors and a servo, read distance using an ultrasonic sensor, and communicate via Bluetooth.

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

2 x AA Battery Mount

• Description: A battery holder for two AA batteries.
• Pins: -, +

Micro servo 9G

• Description: A small servo motor.
• Pins: GND, +5V, PWM

Motor and Wheels

• Description: A motor with attached wheels.
• Pins: vcc, GND

Ultrasonic Sensor

• Description: A sensor used to measure distance.
• Pins: +VCC, Trigger, Echo, GND

L293D

• Description: A motor driver IC.
• Pins: 5V, GND, +, Servo1, Servo2, RX/DO, TX/D1, 9V, A0, A1, A2, A3, A4/SDA, A5/SCL, VIN, 3.3V, RESET, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13

HC-06

• Description: A Bluetooth module.
• Pins: RXD, TXD, GND, VCC

Wiring Details

Arduino UNO

• No direct connections specified in the net list.

2 x AA Battery Mount

• - connected to GND of L293D
• + connected to + of L293D

Micro servo 9G

• GND connected to GND of L293D
• +5V connected to 5V of L293D
• PWM connected to Servo1 of L293D

Motor and Wheels

• vcc connected to + of L293D
• GND connected to GND of L293D

Motor and Wheels (second instance)

• vcc connected to + of L293D
• GND connected to GND of L293D

Motor and Wheels (third instance)

• vcc connected to + of L293D
• GND connected to GND of L293D

Motor and Wheels (fourth instance)

• vcc connected to + of L293D
• GND connected to GND of L293D

Ultrasonic Sensor

• +VCC connected to 5V of L293D
• Trigger connected to A1 of L293D
• Echo connected to A0 of L293D
• GND connected to GND of L293D

L293D

• + connected to vcc of all motor and wheels, and + of 2 x AA Battery Mount
• GND connected to GND of all motor and wheels, GND of 2 x AA Battery Mount, GND of HC-06, GND of Ultrasonic Sensor, and GND of Micro servo 9G
• 5V connected to VCC of HC-06, +VCC of Ultrasonic Sensor, and +5V of Micro servo 9G
• Servo1 connected to PWM of Micro servo 9G
• TX/D1 connected to RXD of HC-06
• RX/DO connected to TXD of HC-06
• A1 connected to Trigger of Ultrasonic Sensor
• A0 connected to Echo of Ultrasonic Sensor

HC-06

• RXD connected to TX/D1 of L293D
• TXD connected to RX/DO of L293D
• GND connected to GND of L293D
• VCC connected to 5V of L293D

Documented Code

Arduino UNO Code

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

}

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

}

Additional Documentation

This document provides a comprehensive overview of the circuit, including a summary, component list, wiring details, and documented code.