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Quadpod Robot (added on 2011/10/29)  

This is my first experience in legged robots. By making this quadpod robot I wanted to learn how to implement different gaits using servos. I used the same PCB designed for the other project, R/C little-buggy.

Author: Rasoul Mojtahedzadeh

 

 
R/C Little-buggy (added on 2011/08/21)  

When my brother's R/C toy car's electronic was broken, he wanted to buy a more professional one to be able to control the speed and steering continuously. I checked the mechanic of the car and realized that I can build the whole electronic required to enable it to continuously change the steering and thrust of the motor.

Author: Rasoul Mojtahedzadeh

 

 
R/C Surveillance Robot (added on 2010/01/20)  

This is my hobby project to build a R/C surveillance robot inspired by some works I have seen on Youtube. The project is devided into two main parts: the Robot and the Remote Control.

Author: Rasoul Mojtahedzadeh

 

2 LED Flasher  

This is a 2 LED flashing circuit. It is based on an analog flip flop circuit. This particular circuit was calculated to use blue or white 3V LED with a 12V power supply.

Author: Richard Marier

 

 
120V LED Night Light (updated on 2005/09/24)  

This is a new circuit I just finished. I like the white LED lighting, it is softer and give a better view without being overly bright for the eyes when you just wake up in the middle of the night.

Author: Richard Marier

 

VHF TV Signal Amplifier  

Many times we needed to strengthen a small signal in the region of VHF or FM. The preamplifier that to you we propose offers 20dB in all the region of VHF and it still can reach also their 500MHZ

Author: Shola Sambaque

 

 
PSD Flash Memory JTAG Programmer  

This programmer device is specially designed for "serial writable/parallel readable" Flash Storage Devices as the SGS Thomson's PSD micro-controllers and memory flashes. Micro-controllers without internal data code flash memory or less than requirement, need an external flash data memory to store the program data code. Unfortunately, using the external flashes or EEPROMs that they program in parallel, is difficult to reprogram, test and modify the code. The PSD flash memory and uPSD micro-controller devices have a capability to write into it serially (via JTAG connection and PSDsoft Express software) and read from it in parallel while the flash is in the circuit. This circuit enables you to program these flashes in-circuit (ISP Mode) easily. Please note that the schematic which is published by ST has some errors that they have been fixed in this project.

Author: Rasoul Mojtahedzadeh

 

 
       
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