I am following these instructions to get a simple 7-segment display working:
My problem is that as soon as one of the 3 SPI Pins are connected the digits go off. When running the provided sample script i see no errors, but again, all digits are off.
I already double and triple checked the pin-connections and they are as described in the documentation.
SPI is also enabled. (Checked with
ls -l /dev/spi* )
As long as just 5V and GND is connected, all digits show ‘8’.
The display works fine when used with an arduino.