Description
In theory, I could have several SPI displays connected to the same bus, and displayio has provisions for that — locking of the SPI bus, toggling of the CS pin, even re-setting of the SPI frequency, polarity and phase. However, it's not possible to create two (or more) FourWire objects sharing the same DC and/or reset pins, but with different CS pins — because we will get a "Pin in use" error when the FourWire object tries to create them.