ESP-MQTT-JSON-Multisensor
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bruhautomation
PIR Oddities!
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?
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?
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?
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
@seanfilyaw - Question for you. Do you have a TEMT6000 in use? Or are you using an LDR?
LDR
On Jul 9, 2017 10:39 PM, "Jonathan Weinberg" [email protected] 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 .