Circuit Documentation

Summary

This circuit is designed to monitor water quality and control a water pump based on sensor inputs. It uses an Arduino UNO microcontroller to interface with various sensors and actuators, including a water level sensor, TDS sensor, LEDs, a piezo buzzer, a relay, and a water pump. The Arduino UNO processes the sensor data and controls the water pump and indicators accordingly.

Component List

Water Level Sensor

• Pins: SIG, VCC, GND
• Description: Measures the water level in a container.
• Purpose in Circuit: Provides water level data to the Arduino UNO.

TDS Sensor

• Pins: AI, GND, 5V
• Description: Measures the Total Dissolved Solids (TDS) in water.
• Purpose in Circuit: Provides water quality data to the Arduino UNO.

5V Relay

• Pins: Normally Open, Common terminal, Normally Closed, In, GND, VCC
• Description: A relay module that allows the Arduino to control high-power devices.
• Purpose in Circuit: Controls the water pump based on signals from the Arduino UNO.

LED: Two Pin (red)

• Pins: Cathode, Anode
• Description: A red LED indicator.
• Purpose in Circuit: Indicates the status of the water quality.

LED: Two Pin (green)

• Pins: Cathode, Anode
• Description: A green LED indicator.
• Purpose in Circuit: Indicates the status of the water quality.

Arduino UNO

• 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
• Description: A microcontroller board based on the ATmega328P.
• Purpose in Circuit: Central processing unit that reads sensor data and controls actuators.

Piezo Buzzer

• Pins: Pin 1, Pin 2
• Description: A piezoelectric buzzer.
• Purpose in Circuit: Provides audible alerts.

Water Pump

• Pins: VCC, GND
• Description: A small water pump.
• Purpose in Circuit: Pumps water based on signals from the Arduino UNO.

9V Battery

• Pins: +, -
• Description: A 9V battery.
• Purpose in Circuit: Provides power to the water pump.

Wiring Details

Water Level Sensor

• SIG connected to A1 on Arduino UNO
• VCC connected to 5V on Arduino UNO
• GND connected to GND on Arduino UNO

TDS Sensor

• AI connected to A0 on Arduino UNO
• GND connected to GND on Arduino UNO
• 5V connected to 5V on Arduino UNO

5V Relay

• Normally Open connected to VCC on Water Pump
• Common terminal connected to + on 9V Battery
• Normally Closed not used
• In connected to D7 on Arduino UNO
• GND connected to GND on Arduino UNO
• VCC connected to 5V on Arduino UNO

LED: Two Pin (red)

• Anode connected to D6 on Arduino UNO
• Cathode connected to GND on Arduino UNO

LED: Two Pin (green)

• Anode connected to D5 on Arduino UNO
• Cathode connected to GND on Arduino UNO

Piezo Buzzer

• Pin 1 connected to GND on Arduino UNO
• Pin 2 connected to D8 on Arduino UNO

Water Pump

• VCC connected to Normally Open on 5V Relay
• GND connected to - on 9V Battery

9V Battery

• + connected to Common terminal on 5V Relay
• - connected to GND on Water Pump

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 documentation provides a comprehensive overview of the circuit, including a summary, detailed component list, wiring details, and the code used in the Arduino UNO.