GitLab

Fixed WDT timeout to actually be 1s (instead of 2s)

See merge request reform/reform!18

remember if we're showing some ux (the battery status, splash screen, or system status) and clear it after 15 seconds

we don't need 15 columns, as patrick georgi pointed out -- only 14. that shaves off another clock tick.

adjust loc, pressed_bit, and pressed_byte on each iteration instead of recalculating -- this saves a fair amount of inner-loop time

use the PWM timer to drive a 32KHz tick counter and interrupt, so we can go idle between 1ms keyboard scans. also separate the keyboard scan (slow) from the collecting/reporting (fast, done often).