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7.Night light

Case Description

The night light automatically turns on through the combined action of light sensor and PIR (Passive Infrared) detection.

###Key Knowledge Points

  • How to use the Sugar light sensor module

  • How to use the Sugar PIR (Passive Infrared) module

##Case Implementation

###Structural Assembly Night light.pdf

###Circuit Connection

  • Connect the light sensor module to the Robotbit P0 terminal block.
  • Connect the PIR module to the Robotbit P1 terminal block.
  • Connect the LED module to the Robotbit P2 terminal block.

###Programming 1、The PIR module essentially functions as a button module, so the program needs to initialize it with a pull-up setting.

2、When both conditions are met—light value less than 400 and PIR triggered (Pin1=1)—the LED module turns on (Pin2=1) and remains lit for 3 seconds.

image.png

Program Source Files