First time poster and beginner, please have patience and I very much appreciate the help. I have two Arduino nano boards communicating wirelessly through the HC-12. The transmitting nano has a Panasonic AMN34112 PIR sensor that turns on a simple LED on the receiving nano. This is working well. The…

[image] kingbombo: I do wonder why the house-connected 12v supply would affect things this way. Either there is a differwence between the ground voltage levels, or ther is an ac signal that is affected by connecting the GND or +12 wires. I have seen 70V of 13.6MHz AC between ground and neu…

PIR driving TIP120 goes high when the TIP120 is powered

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JCA34F October 31, 2021, 1:49am 7

Post a link to the PIR datasheet or brand name and exact part number.

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PIR driving TIP120 goes high when the TIP120 is powered

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