Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an Arduino UNO, an L298N DC motor driver, a micro servo, an ultrasonic sensor, a 9V battery, a toggle switch, and two motors with reducers. The circuit is designed to control motors and a servo based on inputs from an ultrasonic sensor, powered by a 9V battery and controlled by an Arduino UNO.

Component List

1. 9V Battery

   • Description: Provides power to the circuit.
   • Pins: -, +

2. Arduino UNO

   • Description: Microcontroller used to control the circuit.
   • 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

3. L298N DC Motor Driver

   • Description: Controls the motors.
   • Pins: OUT1, OUT2, 12V, GND, 5V, OUT3, OUT4, 5V-ENA-JMP-I, 5V-ENA-JMP-O, +5V-J1, +5V-J2, ENA, IN1, IN2, IN3, IN4, ENB

4. Micro Servo 9G

   • Description: Small servo motor for precise control.
   • Pins: GND, +5V, PWM

5. Ultrasonic Sensor

   • Description: Measures distance using ultrasonic waves.
   • Pins: +VCC, Trigger, Echo, GND

6. Motor with Reducer (x2)

   • Description: Motors with gear reducers for controlled movement.
   • Pins: 3 - 6 VCC, GND

7. Toggle Switch SPST

   • Description: Simple on/off switch.
   • Pins: L1, COM

Wiring Details

9V Battery

• - connected to COM of Toggle Switch SPST
• + connected to 12V of L298N DC Motor Driver

Arduino UNO

• 5V connected to 5V of L298N DC Motor Driver, +5V of Micro Servo 9G, and +VCC of Ultrasonic Sensor
• GND connected to GND of L298N DC Motor Driver, GND of Micro Servo 9G, GND of Ultrasonic Sensor, and L1 of Toggle Switch SPST
• A1 connected to Trigger of Ultrasonic Sensor
• A2 connected to Echo of Ultrasonic Sensor
• D11 connected to IN2 of L298N DC Motor Driver
• D8 connected to PWM of Micro Servo 9G
• D6 connected to IN3 of L298N DC Motor Driver
• D5 connected to IN4 of L298N DC Motor Driver
• D3 connected to IN1 of L298N DC Motor Driver

L298N DC Motor Driver

• OUT1 connected to GND of Motor with Reducer
• OUT2 connected to 3 - 6 VCC of Motor with Reducer
• OUT3 connected to 3 - 6 VCC of second Motor with Reducer
• OUT4 connected to GND of second Motor with Reducer

Micro Servo 9G

• +5V connected to 5V of L298N DC Motor Driver
• GND connected to GND of Arduino UNO
• PWM connected to D8 of Arduino UNO

Ultrasonic Sensor

• +VCC connected to 5V of L298N DC Motor Driver
• GND connected to GND of Arduino UNO
• Trigger connected to A1 of Arduino UNO
• Echo connected to A2 of Arduino UNO

Motor with Reducer

• 3 - 6 VCC connected to OUT2 of L298N DC Motor Driver
• GND connected to OUT1 of L298N DC Motor Driver

Second Motor with Reducer

• 3 - 6 VCC connected to OUT3 of L298N DC Motor Driver
• GND connected to OUT4 of L298N DC Motor Driver

Toggle Switch SPST

• L1 connected to GND of Arduino UNO
• COM connected to - of 9V Battery

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.