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Battery Eliminator circuit
Big 7-segment
Li-po charger circuit
Li-po charger circuit


RS232 transceiver circuits
rs232 transceiver circuit which commond used for communicate between microcontroller and other devices such PC or any devices that use rs232.Here is a collection of rs232 transceiver circuits that popular for today.  
ame, security system etc.

3 channel RF remote control
This is RF remote control project that use RC5 protocol to
control up to 3 devices.

PP-Prog
This is a PIC Programmer for Microchip Devices. It can use with several of software.

8 channel IR remote control
This is an IR remote control project that use RC5 protocol to
control up to 8 devices.


555 Based Feeding Timer
 

Polysensor
The fish feeding timer is based on a simple monostable 555 circuit and a relay to drive the load (t...   The development team of this project aim to develop sensors for measuring ionic contaminants (pH, C...


 
 
USB Flight simulator interface cable
Switching regulator

Dual power supply


Digital thermometer


Simple DVM
 
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  A Pulse Width Modulation Control
Power MOSFET RGB LED driver
Kicad
20A Unipolar stepper driver
Making your own PCB’s at Home
Low-Cost RS232 Multiplexer
STAMP II 3x STEPPER MOTOR RS-232 DRIVER
RF Communication Between BASIC Stamps Using 2-meter HT Radios
A simple two channels USB oscilloscope
Artificial Plate Battery
 

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