- the tutorial is not crystal clear
- the hole I was supposed to used was partially obstructed by printing debris so I did not recognize it as a hole
- I did not pay attention closely enough
- search local stores for shorter 2-56 screws
I got 3/16" flat, slotted heads--the Phillips were beveled and did not provide enough thread (I would have liked more detail in the tutorial for this because I'm ignorant, but I got there)
- detach the Piezo and re-attach it with shorter screws (as noted in the last post, the ones I used were too long)
- deburr the hole for the Piezo wires
- cut the wires from the Piezo, string them through the newly deburred hole, and splice them to the other part of the wires connected to the Trinket
- tack the backpack to the Trinket
- cover the on-board LEDs with black tape (I know I have several rolls someplace, but in the interest of sanity I went back to the hardware store)
- screw the Trinket to the enclosure
- modify the diffuser so it will fit in the new cover (also had to clean up the location for the diffuser--I guess I should have anticipated this, but I expected a cleaner print from the service--now I know why Charles Platt in +Make: Electronics wanted me to by a bunch of files and deburring tools)
- hook up the LiPo and charge it
- test and rework as required
First, the screw hole for the Trinket is filled in and I cannot get it to screw in.
Second, the switch does not turn the circuit off--I have to disconnect the battery. I followed the instructions on clearing the connection between the holes on the backpack--maybe I did not get it right.
Third, the Piezo chimes, but the LEDs do not flash. The connections look right to me.
So, I have more work to do.