How to Make Anything

Week 2: FabISP in-circuit programmer

This week we had to mill out the given design for the FabISP in-circuit programmer and solder on the parts correctly. I have zero experience soldering, and haven't delt with complex circuits before, so I didn't deviate from these instructions at all. Jeff's instructions/tips were very helpful, especially since I didn't really know what I was doing.

Some tips/explanations that were particularly useful:

• SJ = solder jump. Can use solder to bridge two sections of copper, or a 0 ohm resistor if the gap is too big.
• 20MHz = a 20MHz crystal OR resonator, depending on the circuit diagram being looked at. 2 connections means a crystal (what I used), and 3 connections means a resonator.
• Put flux on the board before you start soldering. It helps!

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