Working Principle The IR sensor module is interfaced with the Arduino, which measures the fan rotation speed in RPM. The calculation is done on the basis of the number of blades in the fan. After 5 ...

The parts arrived for the RPM meter that uses an Arduino and reciprocal counting to get a three-times-a-second update rate with 1rpm resolution. Arduinos ...

RPM-meter-arduino Simple code for Arduino Project I made. Using Hall-Effect Sensor we can measure the speed of rotation. RPM (Revolutions per minute) – the number of revolutions per minute.

Every management system is trying to make automatic, portable and remote control. This work presents a novel smart energy meter for an automatic and superior metering and billing system. The ...

Eschewing the traditional analog meter display or even a digital readout, [deepsyx] opted to indicate shift points with four LEDs mounted to a scrap of old credit card.