Apart from the Arduino UNO, the circuit consists of two more primal ... light and by detecting its reflection on a potential object in front of the sensor. Using pulsed light enables the sensor to ...

This is a simple arduino project for a soil moisture sensor that will light up a LED at a certain moisture level ... the resistance value and then pour water and measure it again. Use a mid value for ...

[mircemk] shows how to create a simple non-contact proximity sensor using little more than an Arduino Nano board, and a convenient software library intended to measure the value of capacitors.

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Most ambient lights and sensors are designed to generate light to even out the picture on the front of the panel and reduce any light bleed from the back of an LCD display. This Arduino-powered ...