- Arduino Nano microcontroller - LCD display - Ultrasonic sensor - and LED diode For that purpose we need to take two distance measurements in a short time apart and we have: distance2 - distance1 = ...

The sensor sends “hit” signals to a small Arduino Uno via a PC817 optocoupler. The headcount is then displayed on a small LCD screen positioned above the speed bag, allowing you to keep track ...

Why not create your very own high speed camera trigger using a Arduino, piezoelectric sensor ... DIY Arduino High Speed Photography DSLR Trigger. 4:35 pm November 10, 2010 By Julian Horsey.

Developed a speed detection system using Arduino and IR sensors to monitor and alert for speeding violations on highways. Implemented real-time violation alerts to traffic authorities, enhancing ...

DAOKAI 5PCS LM393 Comparator Speed Sensor Module Slot Type IR Optocoupler for Motor Speed Detection Also for MCU Arduino, with Dupont Wire , Comimark 4PCS Tilt Sensor Module Vibration Sensor for ...

Abstract: This project used the XBee Pro Module to transmit and receive signals wirelessly, and an Arduino UNO executed all given instructions. The presence of the car was identified by an infrared ...

We know that measuring the speed of light with an Arduino is possible. It’s just that the implementation is hard. Last month we saw [Udo]’s blinkenlight shield that can be used as a lin… ...

I made this project because I wanted a way to automatically control the speed of a DC fan according to the temperature read by a LM35 sensor. I had a few problems with the PWM part mainly because the ...

These little Arduino boards are a real boon to amateur electronics tinkerers: cheap, versatile, and very small. This guy had the idea to make a high-speed photography setup using one, instead of ...