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Demo 3: oBject Detection
3
button
presses
infrared emitters
infrared detector
Infrared light shines from the emitters, even though your eyes cannot see it. The S2
can detect the light after it reflects off an obstacle and bounces back to its infrared
detector "eye."
Step
1
While covering the center light sensor, press and release the reset button.
Step
2
When you hear the beep, uncover the light sensor.
+
12
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