This project is a basic simulation of an Engine Control Unit (ECU) using an Arduino. It measures engine RPM from a crankshaft sensor (like a Hall effect sensor), calculates timing, and triggers ...

I needed a tacho/RPM display for a CNC spindle. I decided to use an Arduino Micro and OLED display with a reflective LED/Photo transistor as a sensor. Since powering up, a clock can display the total ...

The IR sensor detects a reflective surface once per rotation. Arduino measures the time between detections, calculates RPM, and displays it on the LCD. If RPM exceeds 3000, the buzzer sounds an alert.

Abstract: Industrial air-handling units (AHUs) are an integral part of smart buildings that ensure proper heating, air-conditioning, and air ventilation. Measuring the speed of an industrial fan in ...