Circuit Documentation

Summary

This circuit involves an Arduino UNO microcontroller interfacing with a water level sensor, an IR sensor, and a DC motor controlled by an L298N motor driver. The circuit is powered by a 9V battery. The Arduino UNO reads inputs from the sensors and controls the motor driver to operate the DC motor.

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. Water Level Sensor

   • Description: A sensor used to detect the level of water.
   • Pins: SIG, VCC, GND

3. L298N DC Motor Driver

   • Description: A dual H-bridge motor driver that allows control of the speed and direction of two DC 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. 9V Battery

   • Description: A battery providing 9V power supply.
   • Pins: -, +

5. DC Motor

   • Description: A motor that runs on direct current.
   • Pins: positive, negative

6. IR Sensor

   • Description: An infrared sensor used to detect objects.
   • Pins: out, gnd, vcc

Wiring Details

Arduino UNO

• 5V connected to vcc of IR Sensor
• GND connected to gnd of IR Sensor
• GND connected to GND of Water Level Sensor
• A1 connected to SIG of Water Level Sensor
• GND connected to - of 9V Battery
• GND connected to GND of L298N DC Motor Driver
• D13 connected to out of IR Sensor
• D11 connected to IN1 of L298N DC Motor Driver
• D10 connected to IN2 of L298N DC Motor Driver
• D9 connected to ENA of L298N DC Motor Driver
• D7 connected to VCC of Water Level Sensor

Water Level Sensor

• SIG connected to A1 of Arduino UNO
• VCC connected to D7 of Arduino UNO
• GND connected to GND of Arduino UNO

L298N DC Motor Driver

• IN1 connected to D11 of Arduino UNO
• IN2 connected to D10 of Arduino UNO
• ENA connected to D9 of Arduino UNO
• GND connected to GND of Arduino UNO
• GND connected to - of 9V Battery
• 5V connected to + of 9V Battery
• OUT1 connected to positive of DC Motor
• OUT2 connected to negative of DC Motor

9V Battery

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

DC Motor

• positive connected to OUT1 of L298N DC Motor Driver
• negative connected to OUT2 of L298N DC Motor Driver

IR Sensor

• vcc connected to 5V of Arduino UNO
• gnd connected to GND of Arduino UNO
• out connected to D13 of Arduino UNO

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, wiring details, and the code used for the Arduino UNO microcontroller.