acrazyhobo
New Member
Hey, I'm doing a project for school, and I can't find the schematics for a circuit that uses a 555 timer, an LED, and either a photogate, infrared, sound, ultrasound, moisture, or metal sensor. It can be any of those types of sensors but it needs at least one. And it will be running with a 9v power supply.
Thanks for any help you guys can give me.
-acrazyhobo
Thanks for any help you guys can give me.
-acrazyhobo
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