Flow Measurement: The flow sensor calculates the flow rate of water passing through it in liters per hour (L/hour). LCD Display: An LCD screen is used to display the current flow rate measured by the ...

Connect each relay module to the designated pins on the Arduino: Valve Relay 1: Pin 12; Valve Relay 2: Pin 13; Water Pump Relay: Specify a digital pin (e.g., pin 8,9) Connect the VCC and GND pins of ...

Understanding How a Single Channel Relay Module Works and How to Use it with Arduino to Control AC Loads. Published February 24, 2023 0. ... Using an Arduino microcontroller, moisture sensors, and a ...

With the help of ‘If condition’, I write the first condition, if the moisture percentage goes below 10, then the Arduino will turn pin 3 to LOW and the pump will turn on ( our relay module uses the ...

Water Pump Controller Circuit The circuit diagram of the multi-house water pump control system, shown in Fig. 2, is based on an Arduino Nano board (MOD1), four PC817 optocouplers (IC1 through IC4), ...

If you are designing your own intelligent “Graden Computer” with an optional digital plant moisture sensor/water pump controller that lights an LED to. ... of the module is linked to the 5V line of ...

Simply connect the moisture sensor and the water pump (through the relay) to the Nano RP2040 Connect board, insert the moisture sensor in a flower pot, and put the pump in a recipient filled with ...

Arduino Uno (MOD1) 1: EM-18 RFID reader module (MOD2) 1: RFID tags/cards (125kHz) 4: ULN 2003 IC (IC1) 1: Water pump, 220V AC (Pump1 ) 1: ... The first relay drives the water/fuel pump motor and the ...