I have followd all the instructions to install the device. If I try to run the code in Thonny it gives me this.
Traceback (most recent call last):
File “/home/pi/Pimoroni/fourletterphat/examples/tests/test-all.py”, line 10, in
File “/usr/lib/python3/dist-packages/fourletterphat/init.py”, line 125, in clear
File “/usr/lib/python3/dist-packages/fourletterphat/init.py”, line 162, in setup
File “/usr/lib/python3/dist-packages/fourletterphat/HT16K33.py”, line 57, in begin
self._device.write_i2c_block_data(self._i2c_addr, HT16K33_SYSTEM_SETUP | HT16K33_OSCILLATOR, )
OSError: [Errno 121] Remote I/O error
I would be very glad if you could help me get it to run.