I'm impressed with the "customer experience" from Seedstudio and they always seem to delivery 3 weeks after initial order.
10 PCB's came in at about £20. To have these produced in the UK would have cost about £50 for the first one
The PCB was populated in height order. Smallest components first working my way up to the tallest components :-
- Surface mount LED's, Resisters and switches (painful when using a soldering iron)
- IC sockets
- Jumper style headers
- Molex style headers
- 40 pin Header for connecting to Pi
- Finally the Analogue and Digital IC's, plus the DS18B20 temperature sensor
I've gone ahead and assembled it and these are my initial thoughts:-
- Needs mounting holes to match up with the A+, B+ and Pi 2.
- Needs mounting holes on each corner
- The I2c headers at the top of the board are the wrong way round. All my other PCB's have the "head board" of the header inwards. I had to switch them round to match up with existing i2c devices I have
- It was difficult to solder the 8 different 2 way headers for the analogue ports (on the left). Much easier to solder the 8x2 headers for digital inputs and outputs
Next step will be testing and initial power on!