Infrared Receiver (VS1838B) water flow rate so it does not have

so it does not have a sense of a specific physical position

then the output of the module is low

No-load Speed: 9000 rpm

And any where where water/air is need to be controlled by solenoid valve

SPI and I2C interfaces

Infrared Receiver (VS1838B) water flow rate so it does not haveIntroduction : Infrared Receiver (VS1838B) includes high speed high sensitivity PIN photodiode and a low power, high gain Preamplifier IC. Features : Working Voltage: 2. 7V to 5. 5V Reception Distance: 23M Reception Angle: 35 Degree Low Level Voltage: 0. 4V High Level Voltage: 4. 5V Material: Plastic, Alloy Color: Black, Silver Tone Carrier frequency: 38KHz