LD1117v33 (3.3V - 3 pin Voltage Regulator) op amp I2C Interface and High Speed

I2C Interface and High Speed Serial UART

25V~35V continuous adjustable voltage with high efficiency (up to 92%)

TCRT5000 sensors continuously emit infrared infrared emitting diodes

and Year with Leap-Year Compensation Valid Up to 2100

There are also lots of other water flow sensors in other diameters for your choice

LD1117v33 (3.3V - 3 pin Voltage Regulator) op amp I2C Interface and High SpeedIntroduction : LD1117v33 (3. 3V 3 pin Voltage Regulator) is a low drop Voltage Regulator able to provide up to 800mA of Output Current. Features : Output Voltage: 3. 3V. Output Current: 800mA. Dropout Voltage: 1V. Input Voltage (Max) : 15V.