3-Axis Stepper Controller
3-Axis Stepper Controller circuit

4 - Channel Digital Logic Analyzer and 5 Channel Digital Oscilloscope by using PC Parallel Port
4 - Channel Digital Logic Analyzer and 5 Channel Digital Oscilloscope by using PC Parallel Port circuit

7 segment rolling display using PC
7 segment rolling display using PC circuit

8 Channel software controlled fanbus with PWM
8 Channel software controlled fanbus with PWM circuit

A Laboratory Control System for Cold Atom Experiments
A Laboratory Control System for Cold Atom Experiments circuit

A Worked Stepping Motor Example
A Worked Stepping Motor Example circuit

An Improved Infrared Receiver with Status LED
An Improved Infrared Receiver with Status LED circuit

Build your own printer cable LCD Display
Build your own printer cable LCD Display circuit

Casio data logger
Casio data logger circuit

Control electrical appliances using PC
Control electrical appliances using PC circuit

DS1620 based USB Digital Thermometer
DS1620 based USB Digital Thermometer circuit

DS1621 pc thermometer
DS1621 pc thermometer circuit

Improved Infrared Receiver with status led
Improved Infrared Receiver with status led circuit

IrDA interface for your mainboard
IrDA interface for your mainboard circuit

LCD Module Control with PC
LCD Module Control with PC circuit

LCD2LPT with LIRC
LCD2LPT with LIRC circuit

Monitor Your PC's CPU Core Temperature
Monitor Your PC's CPU Core Temperature circuit

Opto-Isolated Stepper Motor Controller
Opto-Isolated Stepper Motor Controller circuit

Parallel Port Relay Interface
Parallel Port Relay Interface circuit

PC based Frequency Meter
PC based Frequency Meter circuit

PC Serial Receiver (57.6K Baud / TTL & CMOS)
PC Serial Receiver (57.6K Baud / TTL & CMOS) circuit

PC Thermometer V2
PC Thermometer V2 circuit

Reading Data From The Parallel Port
Reading Data From The Parallel Port circuit

RJ45 Network card to IR communication
RJ45 Network card to IR communication circuit

RS-232 Laser Transceiver
RS-232 Laser Transceiver circuit

Simple Analog to Digital Converter
Simple Analog to Digital Converter circuit

Simple PC thermometer
Simple PC thermometer circuit

Stepper motor controller
Stepper motor controller circuit

The 8Way Relay Board
The 8Way Relay Board circuit

The Relay Sub Board
The Relay Sub Board circuit

The Simplified I/O Interface
The Simplified I/O Interface circuit

Use the CD-ROM drive as a audio CD player without the computer
Use the CD-ROM drive as a audio CD player without the computer circuit

VGA to TV Scart
VGA to TV Scart circuit