Content for Project

High Current Discrete Half-Bridge Based on IR2104 or IR2101

“This is a discrete Half-bridge driver based on IR2104 gate driver IC and low impedance high current N channel IRFP4368 MOSFETS. The IR2104 is a high voltage, high speed power MOSFET driver with independent high and low side referenced output …

Homemade Automatic Coil Winder

“Uma bobinadeira é um equipamento empregado na área de eletroeletrônica (também em outras áreas, como a têxtil), mecânico ou eletromecânico, com ou sem controle automatizado, que permite enrolar um determinado número de espiras de fio em um carretel ou fôrma …

How to Make BUZZER From RELAY Switch

“Hi, friends, today i will show how to make buzzer out of relay. Relay is nothing but a switch which is controlled by voltage which we provide. Suppose a relay of 5 volts will act as switch if we provide …

Insect Robot !!

“Insects are everywhere, basically because of its size and ability to reach every corner. In this tutorial it is explained how to make an insect robot.”

IRToWebThingy: IR remote to WiFi adapter with ESP8266

“I made an IRToWebThingy that reads common (and some not so common) infrared remote control codes and makes them available to any devices on the local WiFi network so you can script various things. For instance, you can fly a …

Knight Rider LED Flasher - 555 & 4017

“In this instructable I will show you how I made an LED flasher with Knight Rider effect. The circuit is relatively simple. For me the hardest part was etching the PCB.”

LDMOS Amplifiers

“Frequently I will install a control system to later find out —it doesn’t work or work properly. Have you been there? My aim with this project is to find those anomalies and “gotcha’s” before the first wire is …

Make a Guggenhat: Bluetooth-connected wearable NeoPixel marquee hat

“Adafruits Bluefruit devices are hands-down the easiest way to get Arduino communicating over a Bluetooth wireless connection. Bluetooth LE is a great way to control a project from a smartphone or tablet. This simplicity could be illustrated with a scrolling …

Make a speaker inside a 9V battery

“There are a lot of instructables stating how to make a speaker. Those speaker can be as tall as you and can be as small as your palm. But can you ever imagine that you can make a speaker inside …

Open Source Air Purifier

“This instructable is a brain child that I just had to share with the world. Bad air quality causes various health problems and purification solutions are often complex and expensive. The solution is an open source no nonsense air purifier …