sudo i2cdetect -y 1 only shows 68, but not 20. What does that tell me?
demo-adcread.py words and read input values (0.0, have not checked whether this is correct)
demo-ioread.py stops with Err 5 in line 211:
Traceback (most recent call last):
File "demo-ioread.py", line 26, in
io = IO(bus)
File "/home/pi/Python/ABElectronics_Python_Libraries/ExpanderPi/ABE_ExpanderPi.py", line 211, in __init__
self._bus.write_byte_data(self.__ioaddress, self.IOCON, self.__ioconfig)
IOError: [Errno 5] Input/output error
demo-rtcsetdate.py returns a time.
I have meanwhile ordered a new part, can you nevertheless send me a replacement for the old one so that I have a spare in case of another failure? I'll send an email referring to this post.
Some additional info: We have optically decoupled IOs at the binary inputs and outputs, so every trouble will most likely have entered via power supply.