- /ra/0-3,5 -- Analog
- /ra/4 -- Digital
- /rb/0 -- Analog Input, I2C Data
- /rb/1 -- Analog Input, I2C Clock
- /rb/2-4 -- Analog Input
- /rb/5,6,7 -- Digital
- /rx, /tx -- Digital, TTL serial port
# Status LED:
Two LEDs, S1 (yellow) and S2 (red).
# ADC:
10 channels of analog input, 10-bits depth conversion. The through-hole kit version of the bitwacker can be assembled with the 12-bit version of this chip.
# Power
USB bus power only.
# ICSP Port
Extra small row of pins located on the bottom of the board
# USB Program Mode
1. Press and hold PRG
2. Press and release Reset
3. Release PRG
Red LED S2 will blink rapidly when program mode is active. On the USB bus it will appear as "Composite Device from Microchip Technology Inc", VID = 0x04D8, PID = 0x000B.
# Bugs
Revision A3 of this processor is known to have many bugs in the silicon, most of which are harmless, but some of which may have no workaround. If you are experiencing inexplicable problems, test on a different revision of the chip.
