====== Ambiant light sensor controler ======

The module described here make it possible to retreive the ambiant light value from the PmodALS device.

{{ :en202:pmodals_symbol.png?direct&600 |}}
({{:en202:pmodals_symbol.vsd | figure source}})
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This module constantly outputs the last measured value on the light sensor. To refresh this value, set the //refresh// input during at least one clock cycle. 

As long as the //refreshing// output is high ( = '1' ), the //data// value is meaningless.

  * {{ en202:pmodals_ctrl.vhd | controler module}}
  * {{ https://www.digilentinc.com/Data/Products/PMOD-ALS/PmodALS_RM.pdf | Pmod datasheet }}