Light sensor

476

04:44:03

I'm trying to make a sensor which detects when something is placed onto my board. my first idea was to use some LED's and a LDR (the poti here) which get covered as soon as i place sth on there. Then ill be reading the voltage drop with an arduino. If somebody has a better idea feel free to let me know.

published 7 years ago

Grimmy

7 years ago

Use a photoresistor to kick a monostable multivibrator setup with a 555. No need to mess around with programming an Arduino.

ViolationMad

7 years ago

Yes but the project also needs a clock to keep track of the time. I guess the arduino will be the most suitable option then when it’s connected to a LCD screen.

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