💬 OH Mini-Multi-use Sensor Platform

[openhardware.io]

https://www.openhardware.io/view/261/OH-Mini-Multi-use-Sensor-Platform

[mfalkvidd]

@LastSamurai I'm unable to find the BOM for this project. Could you give me a hint on where to find it? I'm especially interested in what pir you use.

[hek]

Looks like one of these, mini PIRs

http://www.ebay.com/itm/HC-SR505-Mini-Infrared-PIR-Motion-Sensor-Precise-Infrared-Detector-Module-/201322916809?hash=item2edfc7ebc9:g:WSsAAOSwzLlXh1pT

[LastSamurai]

@mfalkvidd Ups, right there is no BOM yet. I will have to add that. Wanted to do a new version with a cap parallel to the CR2032 anyways. Most components are marked on the PCB though if you need it now.
And hek is right, that is exactly the pir I used. These cheap PIR kept going crazy after some weeks of usage though. Currently I am testing the molgan (ikea) conversion :)

[Nca78]

I wouldn't advise those PIR's either. They made some entire batches that didn't work at all (bought 2, both had output high all the time...). It seems the other batches are not all very reliable...

As there's no advantage in power consumption compared to SR501 and they don't have any potentiometer for setting at least the sensibility, they're not really a good buy imho :stuck_out_tongue_winking_eye:

[LastSamurai]

I am still using several temp/hum sensor and they are running great :) I also have just added code and pictures for my newly build light sensor (using an LDR).