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Recent content by BOHDA

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    Digital Osciloscope on ATMega162

    atmega162 projects I want to show you a new interesting project at **broken link removed** The romanian guys hope to colaborate with somebody to improve the scope!Maybe here is the real place!
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    Help in reprogramming ATTINY2313

    attiny2313 fuse bits Thanks!I'll informed my friend about this![to try this trick]
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    Help in reprogramming ATTINY2313

    attiny2313 parallel programming What do you mean with parallel programming?He has an AVR Dongle programmer [74HC244] on LPT.He alredy tried at another guy to work on STK 500 board,but the same problem as above!
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    3-5V DC @50mA from 230V AC without transformer

    The all things pointed here are ok!See fig10 in Microchip 00954a.pdf.Is a cllasic aplication,the only thing is to have a good rated zenner,cause,without load,the current is flowing through it!-This means an minimum 1 watt zenner![better 2 watt].The condenser .47uF should be taken at 275 V AC...
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    Help in reprogramming ATTINY2313

    reset attiny2313 One of my friends put me a question I couldn't respond-How to reprogram an ATTINY2313,after he made an mistake configuring pin Reset as I/O?Now the controller can't be seen at programming! Any idea or advice?
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    Help Converting Gif image to an 1:1 scale

    Thanks for advice!It's an idea.Mean time I consult my son,he is an software engineer.The gif image is compressed and when resizing it to a smaller one there are a lot of pixels loosed!So the best thing is to redraw in PCB soft and to use with save as .emf ,printing after in Windows Xp tools. I...
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    Help Converting Gif image to an 1:1 scale

    I'm trying to solve a problem-I found an gif image of an PCB[not at 1:1 scale] and have to convert it to an 1:1 scale for printing and then making an iron press PCB. The harder way can be redesigning the PCB [as painting with an model!...].The other way can be an some kind of importing or...
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    Using LM317 as current regulator

    Re: Current regulator Take a look to National Semiconductors application AN 178.It has a nice current regulator with LM317 10mA-1.2A. If you are not depending on LM317 the better solution is a simple Mosfet regulator controlled in gate.
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    What is 1I3H SMD code on SOT23 package?

    Re: please help Try at **broken link removed** have the SMD code book.
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    Building a xenon bulb flashlight.

    I add a link for a stroboscope which can be found at http://www.mujweb.cz/www/jovv/elektro/proj.htm. Another good link,as tutorial, is members.misty.com/don/donflash.html .
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    Refering use of SAB1009 and SAB1046

    sab1046 Does anybody have some technical data[like application diagram] for SAB1009[B] and SAB1046[P]?I'm tryng to use this two recovered devices.First is an wide band amplifier and second is an 256 divider.
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    how to drive high side mosfet

    mosfet high side drive On internet are a huge number of data and AN.I just put here Motorola old file[Now for application notes you have to visit ONsemiconductors]
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    Icprog 1.05C settings for DL2TM programmer

    dl2tm I am trying to use the DL2TM programmer for AT89C2051 with Icprog software.Does anybody know the settings for Icprog 1.05C in this case?
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    frequency meter pic led display

    digital lcd meter version 1 nokia I have to show another link for a good AADE based LC meter at **broken link removed**. It use AT90S2313 as MCU.The etalons are 49 uH and 400 pF. I build this meter and works well.Comparing to original I don't use the conection with PC. For some values of...
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    frequency meter pic led display

    lc meter pic16f876a About FCL Buev has to be remark following diference from typical AADE work[as are presented by Buev]: -AADE metod has an inconvenient regard to measuring big value of inductors[bigger than 10 mH] with an increasing value of self capacitance.In this case the reading values...

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