Not so long ago, the typical development board was big, bulky, and often handmade. Recently a flood of Lilliputian-size development boards has been released — one for just about any need. We’ve assembled a collection of 10 boards so small you might lose them in the cushions of your couch.Click on to the next page […]
10 Tiny Development Boards That Are Up to the Task Read More »
I’m a fan of LEDs, lots of LEDs. So here’s a slightly less crass way of using LEDs for decorative purposes.While this is by no means a neat and polished solution, and probably not the first of its kind, however the pulse effect is as far as I have seen unique, and exactly what I
LCD displays are commonly supplied as a module with a built-in driver circuitry usually mounted on a PCB at the rear of the module. While this strengthen the module mechanically, it has some drawbacks such as it increases the thickness of the display module and raises the manufacturing cost. NXP semiconductors describes the Chip-On-Glass technology
Chip-On-Glass (COG) technology for LCD displays Read More »
You’ll be the talk of the town when you wear this obnoxious, oversized, completely impractical wristwatch. Display your favourite foul language, song lyrics, prime numbers, etc. Inspired by the Microreader kit, I decided to make a giant watch using similar sixteen segment displays. Twelve hours later, I came out of my masochistic fugue and stopped
Programmable watch with four character display Read More »
In this instructible we will learn how we can hook up an LCD based on the HD44780 chipset to the SPI bus and drive it with only 3 wires for less than $1. Although I will focus on the HD44780 alphanumeric display in this tutorial, the same principle will work pretty much the same for
3-Wire HD47780 LCD for less than 1 dollar Read More »
The cMoy Headphone Amplifier is a headphone amplifier kit suitable for use with portable audio equipment, smartphones, computers etc.The cMoy is a minimalist headphone amplifier based around a single dual-channel opamp. It is based on a design well-known in the DIY Audio community. We’ve made it into an open source hardware kit that is easy
cMoy Headphone Amplifier Read More »
The TS3004 is a single-supply, timer IC fully specified to operate over a supply voltage range of 1.55V to 5.25V while consuming 1.9μA supply current. Requiring only a resistor to set the base output frequency (or output period) at 25kHz (or 40µs) with a 50% duty cycle, the TS3004 timer/oscillator is compact, easy-to-use, and versatile.
TYPICAL APPLICATION CIRCUIT Read More »
Teledyne LeCroy demonstrated the world’s first 100 GHz real-time oscilloscope on July 24, 2013 at the research facilities of Teledyne Scientific Company in Thousand Oaks, CA. In the demonstration, the prototype scope successfully acquired and displayed live signals at 100 GHz bandwidth. In addition, the Teledyne LeCroy and Teledyne Scientific also unveiled an indium phosphide
LeCroy raises bar with 100GHz scope Read More »
I wanted to make an easy and secure way to enter my garage. RFID was the best way to unlock my door, even with my hands full I can unlock the door and push it open! I built a simple circuit with a basic ATMega 168 arduino chip and a ID-20 RFID reader to control
Arduino RFID Door Lock Read More »
After making a 8X10 matrix a lot of people asked me about expanding the matrix to some thing bigger, and some wanted to write stuff to the matrix via a PC, so one day I looked at a pile of LEDs that I had leftover from a LED cube projected and I decided to make
Make a 24X6 LED matrix Read More »
