There is a calibration value at the top of the code called calibrationFactor. This needs adjusting to compensate for your meter. This is all run on a Wemos Mini with a soldering board backpack. Get ...

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 ...

The output of the flow sensor of the SwissFlow SF800 is displayed digitally using this frequency meter. ... Flow Sensor Frequency Meter. Posted Thursday, January 26, ... and has extensive community ...

This was the case for [Rob] and his Porsche 944, which had relied on an old-fashioned mechanical air flow meter (AFM). He decided to replace this with a modern mass air flow (MAF) sensor instead ...

It’s something [mircemk] demonstrates, with an Arduino-powered magnetic field strength meter that uses a UGN 3503U Hall effect device. The circuit is extremely simple, comprising the sensor, an ...

Calculating the R o Value of MQ135 Sensor. Now that we know the value of RL, let’s proceed on how to calculate the R o values in clean air. Here we are going to use MQ135.h to measure the CO2 ...

Neil Hannay explains how to understand flow meter sensor and pulse output types for efficient system operation. FLOW meters have developed into many forms over the years, from mechanical devices – ...