USBasp by Cieszak
- Details
I am getting ready to build myself an AVR ISP programmer over USB. I came across an interesting project, USBasp. There is also a Polish page describing how to build that programmer. I went through the various modifications (among them USBasp - Caladan's Mod ) and decided to make my own.
My version will look roughly like this:
What mattered most to me was being able to program chips running at 5 V as well as at 3.3 V. That is why, like Caladan, I put a supply voltage switch in the circuit. For voltage regulation I used a MAX882, because I have two of them in my parts box that I once ordered from MAXIM as free samples. Apart from that the circuit is identical to the original. The schematic of the programmer looks like this:
For now it is only a design, so there is no telling yet whether it will even work :D
The programmer did of course work straight away; there is more in USBasp programmer - the build