pcb - part 4.
Man, what a speed! I ordered it on Saturday and got it from postman on Tuesday morning, neatly packaged and everything. It looked like this:
I found out I made two mistakes:
- I didn't check the "advance milling" option, so only round holes were made by the manufacturer. I had to make the oval ones myself with knife (for power jack and for audio jack). The way I was doing it I expected to cut up myself badly, but I was pleasantly surprised that I didn't.
- The traces I designed were just way too thin, at least for this kind of "basic" process without additional protective paint. The pads for soldering and the space between traces and "filled" ground is also too small. At two points a bit of solder got mixed up with some "PCB dust" and it took some work to get it off because it bridged the "fill" ground with a trace.
What really did surprise me was that when I soldered all components on, it worked on first try. Not even a hitch. And it can be programmed with ISP. Yay!
The sources for the whole project are here
permalink, 20.2.2019