On the microbit [1] we run the display's LEDs in reverse to turn most of the display into a light sensor [2]. It can then be used in code [3]. [1] https://micr

On the microbit [1] we run the display's LEDs in reverse to turn most of the display into a light sensor [2]. It can then be used in code [3]. [1] https://microbit.org https://microbit.org [2] https://lancaster-university.github.io/microbit-docs/extras/light-sensing/ https://lancaster-university.github.io/microbit-docs/extras/... [3] https://makecode.microbit.org/_Lgy9F04ar9Tm https://makecode.microbit.org/_Lgy9F04ar9Tm