W1401 support, resolves issues #13, #14, #15
Support for the W1401 board with the following features:
- serial interface through PD1/SWIM
- 7S-LED through vectored I/O (auto-off w/ time delay while serial interface active)
- board keys through vectored I/O
- relay/red LED, and green LED through
OUT!
- buzzer with programmable pitch (
BEEP_CSR
HW-register)
Sensor input from the W1401 header can be read with 5 ADC! ADC@
(the analog input is surprisingly stable: there is just enough noise to get some extra resolution, but one still gets a stable readout down to the LSB without filtering).