About: Ibrar Ayyub

What do you do when you have to read the internal ROM contents of a 8048 or 8049 processor and you don’t own a programmer for those devices? You simply build this 8049 spy of course! That is exactly what I did when I wanted to know how my Philips Frequency Counter PM 6668 worked. […]

Silicon Labs is producing ARM M0-based USB-enabled MCUs called Happy Gecko which aim to lower USB power drain and simplify USB connectivity. Adding USB interfaces to portable, battery-powered connected devices can double the application current consumption, says Silicon Labs. Happy Gecko USB MCUs have five energy modes enabling applications to remain in an energy-optimal state […]

Many times, designers are faced with the need of generating analogue or analog voltage levels in purely digital circuits. Although the market provides today a very broad range of dedicated digital-to-analogue converters, putting such a device in the schematic has a negative impact on the overall cost of the system. 1. Introduction In the first […]

A relay is an electromagnetic switch which is used to switch High Voltage/Current using Low power circuits. Relay isolates low power circuits from high power circuits. It is activated by energizing a coil wounded on a soft iron core. The Role and Function of Relays include controlling the flow of electricity between circuits, providing electrical […]

Bernard introduces us to the dsPIC microcontroller. He shows us his Arduino like project board for a dsPIC and gives advice on software development tools. This article was submitted by Bernard Klinc as part of the “Hobby parts for articles” program. Bernard received a graphic LCD module for this great article. You may remember Bernard […]

The Serial Peripheral Interface (SPI) is a high speed, synchronous, serial communication standard. This communication protocol is basically a Master Slave implementation where the master device controls the clock based on which the slave devices operates. The master can communicates with one or more slave in the system through SPI bus. The SPI bus requires a […]

I have been working with Eagle for quite some time but never really got a PCB manufactured. almost all the time i used the toner transfer method to make homebrew PCBs. But then i took a project in which i had to use SMD components and i could no longer use toner transfer method because […]

Solar Lighting Controller based on PIC12F675 micro controller to be used with a Solar Panel, Battery and a LED 12V Light, it has built with affordable materials and its ready to use, just plug your devices and its done, this controller will function by itself with no need to turn on or turn off the […]

Sydney, Australia – May 18, 2015 – CAP-XX (LSE:CPX), developer of flat supercapacitors for burst and back-up power in space-constrained electronic devices, today launched its Thinline series of single-cell supercapacitors. The world’s thinnest at 0.6mm thick, and with prices starting at less than US$1 in large volumes, Thinline was developed to address the size, weight […]

Replacement: None. We do not have a direct replacement for this board. This page is for reference only. Description: A fun package full of potential projects! Development board for 28 pin PIC microcontrollers with power supply circuit, crystal oscillator circuit, RS232 port, ICSP/ICD port, 16×2 alphanumeric Supertwist LCD display, 6 button keyboard, Dallas touch button […]