MST/MH452 Dual Hall Speed and Direction Sensors

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The MH452 is a dual channel switch Hall sensor with

two hall sensing elements, it output two digital signal

for speed and direction processing.

Solteam/JSA-1502 Color Light Sensor (捷騰光電)

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JSA-1502 is a color-based light to digital converter

which combines photodiodes  I²C  interface R,G,B,W

and IR five channel parallel output