GoodWatch20 Layout - Githubissues

travisgoodspeed / goodwatch

Replacement board for Casio Calculator Watches using the CC430F6147

504 stars 55 forks source link

GoodWatch20 Layout #19

Closed travisgoodspeed closed 6 years ago

travisgoodspeed commented 6 years ago

[ ] Corners need to be rounded to fit within plastic tray.
[x] Drill holes are too small for the Casio plastic.
[x] The 32kHz xtal needs to move slightly to fit the plastics.

Close this issue when layout is complete. See #7 for radio details.

travisgoodspeed commented 6 years ago

Looks like cutting R1 was a bad idea, and we might need an extra decoupling cap on the !RST line. Turns out a watch is subjected to a lot of ESD when worn at night or with long sleeves.

[x] Check this when !RST stops jerking around under ESD.

travisgoodspeed commented 6 years ago

The two drill holes on the board are 0.1mm different in the Y axis.

[x] Check this when either that difference is verified to be correct, or the two are moved to identical positions.

travisgoodspeed commented 6 years ago

We might as well re-use that handy buzzer if it can be driver by GPIO.

[x] Check this box when it's wired up.