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

gunrunnerjohnOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

Any obstruction that blocks the path appears to knock down the interference, and once I turned them to where there wasn't anything to reflect the beam for a few feet, they no longer had a conflict. I was impressed on how well they ranged, if you had the sensing distance at about 6", anything at 9" didn't trip them at all.

I think what is behind what you aim them at is a primary factor in their interference.

I did order complete sets of parts and found some terminal blocks for the connections. I'll have to wait for the Far East, getting the chips from my common sources was not possible, all the major houses were out of them. eBay wanted a King's Ransom for the 'HC123 chips.

2/20/229:00 AM

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