Learning from your mistakes

In electronics as in everyting else, the more you mess up the more you learn (hopefully). With that in mind I figured, "what the hell, let's give it a go" and I sent an order to Micron 20 .

It is a pretty simple PCB for an ATmega168 (or -328) with voltage regulator, pull-up resistor for the reset pin, a crystal with associated load caps and a 3mm led with resistor.

The order specifications are as follows:

  • Single-sided
  • 6.9 x 2.8mm (2700 x 1100 mils)
  • Solder mask (blue) on both sides
  • Silkscreen (yellow) on top

Minimum PCB size is 0.7 dm2 (square decimeters?! Why would anyone ever use square decimeters as a unit?) so I will received 4 boards.
I chose to have the boards done in 7 work days (you can choose between 24 hours to 15 days) and airmail delivery and the grand total was €66.

Now, we'll see what kind of mistakes I have made :)

It looks like this:

(click to see larger image)

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