Light measurement is not reliable

[Amerlander]

Describe the bug Light measurement is not reliable: https://forum.calliope.cc/t/lichtsensor-gibt-falsche-werte-aus/2377/7

To Reproduce Steps to reproduce the behavior:

basic.forever(function () {
    serial.writeLine("" + (input.lightLevel()))
    basic.pause(500)
})

Expected behavior Get light data consistently

Screenshots