LAN cable tester

LAN cable tester. Here's a very simple, but practical circuit, which is used to check the type of LAN cables (straight or cross) a...

E-Mail Notification with the SIMATIC HMI Comfort Panels

Livewire with PCB Wizard

CadSoft EAGLE PCB Design Software

EAGLE PCB Design tool offers 3D visualisation for complex board design Posted: 07/03/12 EagleUp utility lets design engineers create...

SIM Reader

This project details how to build a Smart/SIM card reader/writer for experimentation and investigation of SIM & Smart cards.Once the...

Weller WLC100 Electronic Soldering Station

  One day you switch on your soldering station (in my case a Weller WLC100). You flick the switch and the red light comes "ON",...

Electric Cockroach Zapper

The timing for the power pulse to the inductor is critical to getting the best Zap from your nine volt battery. The longer the current ...

EEPROM Programmer

  EPROM adapter for ATMEL 89 Series Flash Microcontroller Programmer Ver 2.0

Simple Surround Sound Decoder

This surround-sound decoder is based on the "Hafler" principle, first discovered by David Hafler sometime in the early 1970s. Th...

CellPhone Operated Toggle Switch

  Light from a mobile phone's display screen could be used to trigger a switch. When a brief (free) phone call illuminates the d...