Elektronica Stynus
 

LED-countdown clock V1

This is a clock that starts with a selectable amount of leds on. Then every 20min 1 leds goes off.

(Can be used as a sleep timer for autistic kids)

LED-klok
LED-klok
LED-klok
LED-klok
LED-klok
LED-klok
LED-klok

 

I made a second version of this project. Link

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