Circuit Documentation

Summary

This circuit is designed to automate the process of flushing and rinsing a tank using an Arduino UNO microcontroller. The system includes various components such as LEDs, a motor speed controller, a water flow meter, an LCD display, and a relay module. The Arduino UNO controls the operation of these components based on the programmed logic to ensure the tank is properly flushed and rinsed.

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. L298 Dual H Bridge Motor Speed Controller

   • Description: Motor driver module for controlling the speed and direction of DC motors.
   • Pins: 5V, ENA, IN1, IN2, GND, IN4, IN3, 12V, Motor 1 Power, Motor 1 GND, Motor 2 Power, Motor 2 GND

3. LED: Two Pin (red)

   • Description: Red LED for indicating status.
   • Pins: cathode, anode

4. LED: Two Pin (yellow)

   • Description: Yellow LED for indicating status.
   • Pins: cathode, anode

5. Barker Auto Drain

   • Description: Automatic drain valve for the tank.
   • Pins: Brown Wire 12 V-, White Wire 12 V+, Yellow Wire (Switched), Green Wire (Switched)

6. YF-S201 Water Flow Meter

   • Description: Water flow sensor for measuring the flow rate.
   • Pins: SIG, GND, VCC

7. 16X2 LCD

   • Description: 16x2 character LCD display for showing status messages.
   • Pins: VSS, VDD, V0, RS, RW, E, D1, D0, D2, D3, D4, D6, D5, D7, A, K

8. Potentiometer

   • Description: Variable resistor for adjusting the contrast of the LCD.
   • Pins: GND, Output, VCC

9. 12v power supply

   • Description: Power supply providing 12V DC.
   • Pins: +, -

10. MB102 Breadboard Power Supply Module 3.3V/5V

    • Description: Power supply module for breadboard providing 3.3V and 5V.
    • Pins: VCC, GND, 3.3V, 5V

11. BreadBoard

    • Description: Breadboard for prototyping and connecting components.
    • Pins: Multiple pins for connections

12. 5v 2-Relay JD-VCC

    • Description: Relay module for switching high power devices.
    • Pins: JD-VCC, VCC, GND, IN1, IN2, NO, COM, NC

13. LED: Two Pin (green)

    • Description: Green LED for indicating status.
    • Pins: cathode, anode

14. Resistor

    • Description: Resistor for current limiting.
    • Pins: pin1, pin2
    • Properties: Resistance: 220 Ohms

15. LED: Two Pin (blue)

    • Description: Blue LED for indicating status.
    • Pins: cathode, anode

16. LED: Two Pin (white)

    • Description: White LED for indicating status.
    • Pins: cathode, anode

17. terminalblock-04-01

    • Description: Terminal block for connecting wires.
    • Pins: 1, 2, 3, 4, 5, 6, 7, 8

18. 12v Pneumatic solenoid valve

    • Description: Solenoid valve for controlling the flow of air or liquid.
    • Pins: VCC, GND

Wiring Details

Arduino UNO

• 5V connected to MB102 Breadboard Power Supply Module 3.3V/5V VCC and BreadBoard pin3Z.
• GND connected to MB102 Breadboard Power Supply Module 3.3V/5V GND and BreadBoard pin4Y.
• A0 connected to Resistor pin1.
• A1 connected to Resistor pin1.
• A2 connected to Resistor pin1.
• A3 connected to Resistor pin1, terminalblock-04-01 pin7, and 5v 2-Relay JD-VCC IN1.
• D12 connected to 16X2 LCD RS.
• D11 connected to 16X2 LCD E.
• D9 connected to L298 Dual H Bridge Motor Speed Controller ENA.
• D8 connected to L298 Dual H Bridge Motor Speed Controller IN1.
• D7 connected to L298 Dual H Bridge Motor Speed Controller IN2.
• D5 connected to 16X2 LCD D4.
• D4 connected to 16X2 LCD D5.
• D3 connected to 16X2 LCD D6.
• D2 connected to 16X2 LCD D7.

L298 Dual H Bridge Motor Speed Controller

• ENA connected to Arduino UNO D9.
• IN1 connected to Arduino UNO D8.
• IN2 connected to Arduino UNO D7.
• 5V connected to BreadBoard pin45Z.
• GND connected to BreadBoard pin43Y.
• 12V connected to 12v power supply +.
• Motor 2 Power connected to Barker Auto Drain Brown Wire 12 V-.
• Motor 2 GND connected to Barker Auto Drain Green Wire (Switched).

LED: Two Pin (red)

• cathode connected to BreadBoard pin28Y.
• anode connected to Resistor pin2.

LED: Two Pin (yellow)

• cathode connected to BreadBoard pin24Y.
• anode connected to Resistor pin2.

Barker Auto Drain

• Brown Wire 12 V- connected to L298 Dual H Bridge Motor Speed Controller Motor 2 Power.
• Green Wire (Switched) connected to L298 Dual H Bridge Motor Speed Controller Motor 2 GND.

16X2 LCD

• RS connected to Arduino UNO D12.
• E connected to Arduino UNO D11.
• D4 connected to Arduino UNO D5.
• D5 connected to Arduino UNO D4.
• D6 connected to Arduino UNO D3.
• D7 connected to Arduino UNO D2.
• VSS connected to BreadBoard pin27Y.
• VDD connected to Potentiometer VCC.
• V0 connected to Potentiometer Output.
• K connected to BreadBoard pin27Y.
• RW connected to BreadBoard pin27Y.
• A connected to Resistor pin1.

Potentiometer

• GND connected to BreadBoard pin27Y.
• VCC connected to 16X2 LCD VDD.
• Output connected to 16X2 LCD V0.

12v power supply

• + connected to L298 Dual H Bridge Motor Speed Controller 12V.
• - connected to 5v 2-Relay JD-VCC COM.

MB102 Breadboard Power Supply Module 3.3V/5V

• VCC connected to BreadBoard pin3Z and Arduino UNO 5V.
• GND connected to BreadBoard pin4Y and Arduino UNO GND.

5v 2-Relay JD-VCC

• GND connected to BreadBoard pin3Y.
• IN1 connected to Resistor pin1, terminalblock-04-01 pin7, and Arduino UNO A3.
• IN2 connected to terminalblock-04-01 pin8.
• VCC connected to BreadBoard pin3Z.
• COM connected to 12v power supply - and 12v Pneumatic solenoid valve GND.
• NC connected to L298 Dual H Bridge Motor Speed Controller GND and 12v Pneumatic solenoid valve VCC.

LED: Two Pin (green)

• cathode connected to **Bread