Content for Project

LED Tree Jenkins Build Monitor

“Inspired by the work by [designer2k2]’s project featured on the HaD blog, I made my own desktop LED tree using NeoPixel rings. The tree receives commands over Ethernet from a computer which is running a python script to monitor …

Reversing Sinclair’s amazing 1974 calculator hack - half the ROM of the HP-35

“In a hotel room in Texas, Clive Sinclair had a big problem. He wanted to sell a cheap scientific calculator that would grab the market from expensive calculators such as the popular HP-35. Hewlett-Packard had taken two years, 20 …

RooBee One - SLA DLP Aluminum Frame 3D Printer

“Roobee One is an SLA DLP 3D printer inspired on the Cristelia - SLA/LCD 3d printer and the Vulcanus MAX 3D printer. It is built out of 20x20 mm aluminum profile chassis, It has an adjustable print area of 80x60x200 …

Simple Infrared LED and Photodiode tester

“This is a simple Infrared LED and Photodiode tester using Arduino-compatible microcontroller. Purpose: I received a new batch of IR LEDs and IR photodiodes. I need to test them before signing them off. I have limited tools at home. So …

Single Digit Voltmeter with LM311

“I wanted to design a logic probe as a tutorial, but there were many good ones in the web so i have tried to design a single digit voltmeter. This circuit is a design, i am unable to test it …

TinyLiPoCharger With Buck Bosster 3.3 Volt Out

“I needed a small single cell LiPo charger and 3.3V buck booster for my IoT stuff. A small footprint and multi purpose for different size of LiPo cells”

Using a Wii Nunchuk with Arduino

“We’ve all grown up with game pads in our hands, which makes them ideal to combine them with literally any possible application. A great invention of Nintendo is the Nunchuk, a cheap extension for the Wii U remote. As …

Wi-Fi Controlled Home Appliances Using ESP8266

“In this Instructable we are going to control our home appliances using ESP8266 12E and traics. This is a very cost efficient method because of the low cost of esp module(around 250Rs) and by the use of Traics the …

Wolf : IoT Multi-Terrain Quadruped

“The concept of this robot design is to create a quadruped that can easily transform between walking mode and rover mode (aka wheel traversing). The walking mode will be used for operations that are not ideal for wheels such as …

Arduino 3D Maze

“Animated 3D maze on an Arduino. No 3D libraries were used. While this is not a full game, I think it’s still amazing that something that used to require a full PC is now possible on an Arduino microcontroller …