Circuit Documentation

Summary

This circuit is designed to monitor water quality and control a water pump based on sensor inputs. It utilizes an Arduino UNO microcontroller to interface with various sensors and a water pump. The sensors include a water sensor, a TDS (Total Dissolved Solids) sensor, and a water level float switch sensor. The circuit also includes a 16x2 I2C LCD for displaying information.

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. Water Sensor

   • Description: Sensor to detect the presence of water.
   • Pins: Signal, VCC, GND

3. Water Pump

   • Description: Pump to move water.
   • Pins: +, -

4. TDS Sensor (for water quality)

   • Description: Sensor to measure the total dissolved solids in water.
   • Pins: gnd, v, analog pin

5. Mosfet

   • Description: Transistor used to switch the water pump.
   • Pins: Gate, Drain, Source

6. Water Level Float Switch Sensor

   • Description: Sensor to detect the water level.
   • Pins: Wire2, Wire1

7. Resistor (200 Ohms)

   • Description: Resistor with a resistance of 200 Ohms.
   • Pins: pin1, pin2

8. 16x2 I2C LCD

   • Description: LCD display with I2C interface.
   • Pins: GND, VCC, SDA, SCL

Wiring Details

Arduino UNO

• GND is connected to:

  • Resistor pin1 (200 Ohms)
  • Mosfet Source
  • TDS Sensor gnd
  • 16x2 I2C LCD GND
  • Water Sensor GND

• D2 is connected to:

  • Resistor pin2 (200 Ohms)
  • Water Level Float Switch Sensor Wire2

• D5 is connected to:

  • Resistor pin1 (200 Ohms)
  • Mosfet Gate

• 5V is connected to:

  • TDS Sensor v
  • 16x2 I2C LCD VCC
  • Water Level Float Switch Sensor Wire1
  • Water Sensor VCC

• Vin is connected to:

  • Water Pump +

• A0 is connected to:

  • TDS Sensor analog pin

• A3 is connected to:

  • Water Sensor Signal

• A4 is connected to:

  • 16x2 I2C LCD SDA

• A5 is connected to:

  • 16x2 I2C LCD SCL

Water Sensor

• Signal is connected to:

  • Arduino UNO A3

• VCC is connected to:

  • Arduino UNO 5V

• GND is connected to:

  • Arduino UNO GND

Water Pump

• + is connected to:

  • Arduino UNO Vin

• - is connected to:

  • Mosfet Drain

TDS Sensor (for water quality)

• gnd is connected to:

  • Arduino UNO GND

• v is connected to:

  • Arduino UNO 5V

• analog pin is connected to:

  • Arduino UNO A0

Mosfet

• Gate is connected to:

  • Resistor pin1 (200 Ohms)
  • Arduino UNO D5

• Drain is connected to:

  • Water Pump -

• Source is connected to:

  • Arduino UNO GND

Water Level Float Switch Sensor

• Wire2 is connected to:

  • Resistor pin2 (200 Ohms)
  • Arduino UNO D2

• Wire1 is connected to:

  • Arduino UNO 5V

Resistor (200 Ohms)

• pin1 is connected to:

  • Mosfet Gate
  • Arduino UNO D5

• pin2 is connected to:

  • Resistor pin1 (200 Ohms)
  • Mosfet Source
  • Arduino UNO GND
  • TDS Sensor gnd
  • 16x2 I2C LCD GND
  • Water Sensor GND

16x2 I2C LCD

• GND is connected to:

  • Arduino UNO GND

• VCC is connected to:

  • Arduino UNO 5V

• SDA is connected to:

  • Arduino UNO A4

• SCL is connected to:

  • Arduino UNO A5

Code Documentation

Arduino UNO Code

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

}

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

}

This code is a basic template for the Arduino UNO. The setup function is where you initialize your components and settings, and the loop function is where the main logic of your program will run repeatedly.