RPi5 not supported for timing

[davidfsmith]

Due to changes with the way the GPIO is connected on the latest version of the Raspberry Pi (5) the existing timer code leaderboard-timer/timer.js doesn't work with the timing board.

There are a couple of options

1. Do nothing and hope that the library rpi-gpio or its dependency epoll are updated to support the RPi5
2. Look to change the code to use GIPO Zero

Example code detecting "laps" from a timing board that works on both an RPi4 and an RPi5

#!/usr/bin/python3

from gpiozero import Button
from signal import pause

def logLap():
    print('lap')

pin1 = Button(17)
pin2 = Button(27)

pin1.when_pressed = logLap
pin2.when_pressed = logLap

pause()