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“This project is an automatic light activated counter which comes to life after dark and switches LED’s in a binary sequence. As the LED’s are free wired, they can be placed in any order to highlight the item …

“Some time ago I was asked to solve the following problem: a small choir plays a number of four fixed microphones. The audio signals from these four microphones had to be amplified, mixed and the resulting signal had to be …

“The 8 Channel Driver Arduino UNO Shield is designed to enable users to switch inductive loads for up to 800mA each channel and up to 24V DC with no heat-sink needed. It is ideal for such applications as driving 2x …

“Do you often forget to water your indoor plants? Or perhaps you give them too much attention and over water them? If you do, then you should make yourself a battery-powered soil moisture monitoring stick. This monitor uses a capacitive …

“How to make the wearable activity tracking watch? This is a wearable gadget designed to vibrate when it detects stagnation. Do you spend most of your time on the computer like me? Are you sitting for hours without realizing it …

“To build the basic model of SMARS robot you just need few parts. Divided into two main parts, 3D printed parts and electronics components. For 3D parts you can print yourself using a 3D printer, you can download the complete …

“Based on Arduino Nano , Miles is a spider robot that uses its 4 Legs to walk and maneuver. It uses 8 SG90 / MG90 Servo motors as actuators for the legs, consists of a custom PCB made to power and control …

“Being an electronics engineer, I always wanted to have a portable component tester, which could test every electronic component out there. In 2016, I built myself a Component Tester based on AVR TransistorTester by Markus F. and Karl-Heinz Kübbeler. Following …

“This is an “Audio VU Meter” or “Sound Level Meter”, it is a general-purpose bar-graph Audio VU meter designed for fun projects. All you need is to hook up one wire to the output of the audio amplifier’s speaker …

“Hi everyone. If you’re like me you, probably have a bunch of spare sensors lying around either from incomplete projects, or that you bought on a whim for some reason or another. I was inspired by Patrick Panikulam’s …