MicroPython Forum (Archive)

Hi,
I am having trouble with the schematic working out what all the letters such as U (Brown boxed letters) and S(Green boxed letters mean. There is a key at the bottom left of the schematic and I have worked out that red 6 pin functions are for the PYDB-SF6 only. Is there a key explaining the different colour letters (in boxes) is the schematic diagram?

U: USB pins
L: Lokal (Led etc.)
E: Ethernet
C: CAM
I: I2C
S: SPI
SD: SDCard
Q: QSPI
W: WLAN
B: Bluetooth
6: only available on SF6

Thanks for your table very helpful. This table should be added to the Pyboard-D schematic.