The Arduino Sketch (code) uses the external interrupt (int 0) on Arduino’s digital pin 2 (D2). This is used to read the output pulses coming from the water flow sensor. When Arduino detects the pulse, ...

//Arduino IDE Code for taking the data readings from mutiple flow sensors and sending the sensor data to the NodeMCU through serial communication. volatile int flow_frequency2; // Measures flow sensor ...

Arduino driver for the PAA5100JE and Pixart PMW3901(not tested atm) optical flow sensors. The driver was originally developed to support the Bitcraze Flow Breakout board. It communicates with the ...

Using an Arduino, flow sensor, and colored LEDs, tamberg set up the device to change colors from blue to red when a liter has been used up. For simple tasks, like washing your hands, a Liter is ...

For powering the ESP32-S3 we have used the ADP1706 ultra low noise LDO, and for the reset circuitry we have used the ADM803 power supervisory chip. We have also included a provision for a 1.28” round ...