Introduction Imagine a marathon on a very hot, dusty day when saving every ounce of energy matters to the outcome. This race isn’t half over, but the winner seems certain. The lead looks insurmountable, because this runner can do more with less energy. This runner shines brighter. In the face of heat and competition, this […]
Adding Intelligence to LED Lighting Read More »
Introduction Infrared (IR) can be used for line-of-sight communications over low to moderate range. IR is nice because of the lack of interference (except for sun and compact fluroscent lights) and freedom from FCC regulation. The web site http://tthheessiiss.wordpress.com/2009/08/05/dirt-cheap-wireless/ (Jacob Sikker Remin, 2009) shows how to use a IR remote control receiver and IR LED
Infrared Communications for Atmel Mega644-1284 microcontrollers Read More »
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 »
