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Reply to "HC-SR04 ultrasonic sensor for outdoor layout block detection"

I got a question I got a couple kits from John and finally got around to putting one together. And it didn’t seam to work very well then I noticed I had 7VDC coming out of the voltage regulator 😳

I need To go back through it and make sure I didn’t screw something else up but I’d bet that the sensor is dead now.

so to the point what voltage are you guy feeding these things? 14VAC? 8VAC? I wouldn’t had thought it to make much difference but just wanted to check

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