search

bruhautomation / ESP-MQTT-JSON-Multisensor

(OBSOLETE) ESP MQTT JSON Multisensor for Home Assistant. Supported sensors include the TEMT6000 light, AM312 PIR, DHT22 temperature/humidity sensors. RGB led supports flash, fade, and transition. Over-The-Air (OTA) uploading, too!
https://youtu.be/jpjfVc-9IrQ
Apache License 2.0
340 stars 152 forks source link

PIR Oddities! #9

Open jonathanweinberg opened 7 years ago

jonathanweinberg commented 7 years ago

Great tutorial / project! Having a slight issue with the PIR portion.

I initially wired everything up with a LDR (waiting on a TEMP6000), and an HC-SR501, and couldn't for the life of me get it to work, it was either all motion, or no motion. It was a cheapie and I figured it was the issue you described.

After long wait, my fancy AM312's got here! Same thing.

So I pulled out my analog meter, and saw very very little between Red (VIN) and Black (G) for the PIR sensor. So I move Red (labeled VIN) from it's place by the Black Ground, and up to the 3V by D4. Seems to be fine!

After 2-3 seconds it does show as standby if there's no active motion, but that's functionality to expect from the AM312 as I understand it.

Thoughts? Did I do something silly?

bruhautomation commented 7 years ago

Sorry about the issue and my delay getting back to you. That's interesting about the issues with the AM312.

So, power the PIR from the 3V V pin near D4 made the sensor work for you? In normal operation, the PIR signal pin should remain low until it detects motion. It'll pull high for 2-3 seconds and then go low again automatically. Is this the behavior you're seeing?

bruhautomation commented 7 years ago

Closing this due to inactivity. Feel free to reopen if you need to.

jonathanweinberg commented 7 years ago

Reopening! :) Other similar issues #25 and #19

So, after looking at this more closely, I'm not sure why using VIN + GND + D5 would work. Keep in mind, I'm still trying to learn basic electronics.

The VIN pin, is literally as far as I know, current into the NodeMCU voltage regulator. It's how you would power the unit if not using a USB power adapter.

So we have GND, Voltage into the NodeMCU, and a Digital Pin. GND and VIN are both "sinks" of current. In the Arduino sketch, the PIR pin D5 is an input

Does my logic make sense or am I full of crazy talk here?

seanfilyaw commented 6 years ago

I have wired according to the Diagram, in my instance I have a constant motion detected being displayed, on the Uxcell Mini Pyroelectric PIR Sensor I have the r2 red(vin) c3 yellow(signal) and r1 black(ground) I guess my question is do I have this wired correctly, It seems like it is constantly pulling high

jonathanweinberg commented 6 years ago

@seanfilyaw - Question for you. Do you have a TEMT6000 in use? Or are you using an LDR?

seanfilyaw commented 6 years ago

LDR

On Jul 9, 2017 10:39 PM, "Jonathan Weinberg" notifications@github.com wrote:

@seanfilyaw https://github.com/seanfilyaw - Question for you. Do you have a TEMT6000 in use? Or are you using an LDR?

— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub https://github.com/bruhautomation/ESP-MQTT-JSON-Multisensor/issues/9#issuecomment-313987807, or mute the thread https://github.com/notifications/unsubscribe-auth/ATRyFnSu6yQiK3OGJgbwghjNt56Gugxmks5sMY7EgaJpZM4Nb_4O .