First of all, I have ordered to make PCB by using a milling-drilling plotter. Of course, I could make the board by myself, but I wanted to save some time and nerves in case of errors. After one week my board was shipped to me:
Then I bought all parts needed. One thing that didn’t go well was that I couldn’t get capacitors and resistors in SMD packages 0603, so I used 0805 to lie on the side.
It doesn’t look very OK but works. Presently I have checked the Piconomic project logs and found out that they improved the board layout files by exchanging all 0603 SMD parts to 0805, but it was too late for me as my board was already manufactured.
For you who will decide to build one, it will be easier.
As most of the parts were easy to get, I soldered the board:
Compare to the original version:
Not too bad. And it cost me about 40$ (I didn’t put data flash memory yet).
I have written small blue LED blink routine here – the first program to make sure the development board works OK. Download it here.