add some READMEs

[sensor-light.git] / README.md

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+= LED strip light controller =
+
+The project is to drive night lighting of a staircase using PIR
+motion sensors (two: for the top and bottom of the staircase).
+Ambiant light sensor to only turn the LED chains when it is dark.
+Driven by MSP430 MCU, light power controlled via PWM + MOSFET.