Davide Gironi has posted an I2C multiple HD44780 AVR Atmega library: This library implements a driver for HD44780 lcd connected through PCF8574 port expander. Data is transmitted using only 2 wire over i2c with the PCF8574. This library can drive up to 8 LCD concurrently. Lcd...

Saulius made a DIY PCB inspection microscope and wrote a post on his blog about it: Despite how good microscope you have, stand is still very important part of final assembly. And while there are many commercial ones made of cast iron, they might cost more than a microscope head...

Alistair Samuelson uses open source code to track the blood sugar levels of his son George. by Zoe Kleinman @ bbc.com: Frustrated with traditional monitoring and its risks, Mr Samuelson and George have since joined a growing group of T1 sufferers who are building their own solutions...

In this tutorial we are going to learn some basics on using Keypad 4x4 on Arduino. by mybotic @ instructables.com This keypad consists of 4 rows x 4 columns of buttons. It is ultra-thin that it provides an useful human interface component for microcontroller projects. Convenient...

Diodes are one of the most common used electronic components in our designs used to direct the current flow. Single-molecule electronics is a “branch of nanotechnology that uses single molecules, or nanoscale collections of single molecules, as electronic components.” according to...

As we know, PSU in computers provides various DC voltages, 3.3V, 5V and 12V. These 3 levels are the most common ones needed in our labs, so usually PC PSUs are used by a lot of makers and hackers as their personal bench power supply. The PSU has a standard connector called ATX, you can...

Toshiba will start mass production of 64-layer 3D NAND, BiCS3, with 3-bit-per-cell technology and a 64GB capacity in the first half of 2017. The applications of this new massive storage chip include enterprise and consumer SSD, smartphones, tablets and memory cards. This achievement...

A 35 seconds walk through the Arduino language specifications and how to use it. By reading the below, in 35 seconds you will have a complete knowledge of the Arduino programming language specifications. Then scroll to the bottom for how to use it. 35-second Arduino language...