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Tachometer is a RPM counter which counts the no. of rotations per minute.There are two types of tachometer - one is mechanical and the other one is digital. Here we are going to design an Arduino ...

TCS3200 Color Sensor Working. The TCS3200 color sensor is used to sense a wide range of colors. We previously interfaced TCS3200 color sensor with Arduino and Raspberry pi, and also built some useful ...

After some searching, I ended up using a microcontroller and a piece of code borrowed from the web that I tweaked and adapted. The microcontroller-based concept was chosen because I wanted to scale ...

[Fernando] sent in a tip about a pet project he’s been working on. It’s an interesting take on a 3D scanner. He used a stepper motor to rotate the object being scanned, and an Arduino f… ...

In the real world, missile systems use advanced radars, infrared sensors, and other hardware to track and prosecute their targets. [Raspduino Uno] on YouTube has instead used ultrasound for ...

When a finger or other object touches the surface, it causes the IR light to scatter in many directions. Some of this light is directed down into the screen, towards an array of 64 IR sensors.