For low quantities of PCBs, there are two main services available that I am aware of: OSH Park and iTead Studio. They have their pros and cons, but a new kid has come onto the block: circuits.io. They use OSH Park’s facility, but have a different pricing formula. I have done some analysis to find the best vendor for the project.
I made a point-of-sales system using Arduino, a receipt printer, a 20×4 LCD and a keyboard on October 13, 2012. I thought it would be a good exercise for me because I really wanted a reason to use the Adafruit receipt printer and I would have an example of an embedded systems project that was complicated enough to require a state machine. I’ve documented all the hardware and software below.
I finally finished soldering an RGB LED ring after eight hours of hard labor with the giant Hakko soldering iron tip. It was my first SMD soldering job! The RGB LED ring was from http://blog.spitzenpfeil.org/wordpress/2012/01/11/rgb-led-ring-v2-sequels-dont-have-to-be-bad/