How-to connect motion sensor to esp32? about espresense

[markmghali]

You guys have been very helpful! I will just get the 5v one so I can wire it straight to the esp32!

Thank you

[DTTerastar]

I was able to easily hook a AM312 up to my m5atom. There is a 3.3v pin I used for supply, and ground, and then I hooked the "OUT" to gpio 33. It seems to work great atm.

[DTTerastar]

This PR has a diagram: #48
We need to get that added to the docs. Any help would be appreciated in https://github.com/ESPresense/ESPresense.github.io

[markmghali]

Yeah this diagram is for the Radar sensor? I have vague understanding of how to wire it I believe. Thank you again for this awesome project

[DTTerastar]

I think the pir is the same. It's just a HIGH or a LOW coming into a pin. Just make sure you only let in 3.3v to the pin or else your ESP32 will be unhappy.

[DTTerastar]

@corgan2222 can you help out?

[markmghali]

Oh not sure how to regulate the voltage to 3.3 maybe I'm in over my head? Haha

…

On Tue, Sep 28, 2021, 1:01 PM Darrell ***@***.***> wrote: @corgan2222 <https://github.com/corgan2222> can you help out? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#68 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AEENN4EYTO5EBOMHHXEZDWLUEH7G7ANCNFSM5E5XJY6Q> . Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>.

[corgan2222]

Your mini AM312 runs at 3V. I only use the HC-SR501 which runs at 5V.

you can look here how to conect;
https://randomnerdtutorials.com/esp32-pir-motion-sensor-interrupts-timers/

[markmghali]

Awesome thank you for the follow up. I think I see a 3v3 pin my esp32 I could try and use