Instructions | Light Up Raccoons

1
Plate the board with solder
- Plate the desired pads you want silver with solder. I personally wanted the belly and area around the eyes silver so I did those.
- Use a soldering iron to heat up the pads and a hot air rework gun to help level the surface if that's the effect you want. Without the hot air gun the solder may cool quickly leaving a sort of "brushstroke" effect on the surface
2
Assemble the components
- I personally started with the LEDs on the front since they didn't really make it the raccoon rock much when working on the back.
- I found that cutting the DIP leads right where they narrow was about ideal for putting the ATtiny85 package flush with the board.
- Use solder paste for the programming leads so it can be easily removed later. I used normal lead-free solder on the rest of the components.
3
Program and tune the board
- Tuning the capacitance thresholds is a bit of an iterative process.
- Since I used the SCK pin for sensing I had to disconnect the programming harness to properly assess if it was detecting my finger. Otherwise the parasitic capacitance of the wire may have made it hard to discern if it was my finger or the wire influencing the capacitance observed
4

Remove the programming header
5

Gift it!

Light Up Raccoons