Verified Commit 215ecfdf authored by Rahix's avatar Rahix
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docs: Document light_sensor module

Signed-off-by: Rahix's avatarRahix <>
parent 01c6b903
......@@ -24,6 +24,7 @@ Last but not least, if you want to start hacking the lower-level firmware, the
.. toctree::
``light_sensor`` - Ambient Brightness
On the harmonic board, there is an IR-LED which can be used in reverse as a
crude brightness sensor. Values returned are in no particular unit but seem to
be fairly stable.
.. py:function:: light_sensor.start()
Turn on the ADC and start reading brightness values. This function must be
called before any measurements can be taken.
.. py:function:: light_sensor.get_reading()
Get an ambient brightness reading. The returned value is in no particular
unit, though it seems to be fairly stable. Common values:
- ~8: Very dark are
- ~17: Typical hackerspace brightness
- >200: Direct sunlight
:returns: A brightness reading in no particular unit
.. py:function:: light_sensor.stop()
Stop the ADC.
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