Being a cheapskate and not having a pHAT Stack, I noticed that https://pinout.xyz/phatstack says that I should be able to run a PiGlow and Unicorn HAT from the same Raspberry Pi 2.
Unicorn HAT runs fine on standard m/f jumper (jerky) wires, but when I wire up PiGlow everything runs perfectly for a while before the code crashes with an ‘i/o error’. The amount of time the code (Python) runs for varies, but everything seems fine up to the point of the crash.
This occurs if only the PiGlow is present, connected by wires - it makes no difference whether or not Unicorn HAT is wired in too. When the PiGlow is seated on the Pi’s pins, the same code runs indefinitely.
Would there be a reason why wires affect things? As I say, it appears that all the connections are sound as the display works. I’ve rewired a couple of times, so I assume it’s not the wires’ fault.
All help gratefully received.