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I would like to build an attiny programmer , I found tow circuits which are serial programmer ... can you help me to decide any one is better.

first one which I think is old:attiny board

second one :avr programmer

what are the changes I must made to make the second programmer prober to attiny .

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is there any need to change the value of capacitors in second link if I want to make it for attiny13 – yahya tawil Apr 12 '12 at 10:12
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The first one is just a board with an ISP connector, you still need an actual programmer. If you have a serial port (most USB-to-serial adapters should work, too) you can use the serial bit banging programmer you linked to. If you have nothing but USB, I can recommend the USBasp programmer. – noah1989 Apr 12 '12 at 10:15
@yahya tawil Do note that the second link when used with some USB to serial adapters can be extremely slow. With it I got write rates of about 3 B/s. That may not be a total disaster with ATtiny, but if you ever decide to work with ATmega, it the programming can take in some cases hours. – AndrejaKo Apr 12 '12 at 15:17
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@yahya tawil Since you have real serial port, your computer should be capable of controlling it quickly and the programmer should work fast. I don't know exactly what speeds to expect, but in most cases the programming procedure should last only a few seconds, so the programmer should work fine for you. – AndrejaKo Apr 13 '12 at 18:06
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@yahya tawil Except for the socket part. The socket itself should be selected so it fits the microcontroller you want to use. Just pay attention to names of pins to which programmer connects an find which pins have same name in the microcontroller's datasheet and connect the wires and pins together. – AndrejaKo Apr 13 '12 at 18:09
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