I hooked up the HSM100 to a 4,5v power adapter.
Checked the voltage with a multi-meter and that shows me 4,7v.
Polarity checked…everything ok.
Now the sensor LED blinks at random moments and there is absolutely no motion.
I can see the sensor from another room and i’m sure there is no motion but the LED flashes and also on the dashboard of my vera i can see it detects motion.
Anyone familiar with this problem.
It took me two days to install the sensor so nicely that no wires can be seen, drilled a lot of holes, a mad wife complaining about the dust and then…it doesn’t work properly.
It’s driving me nuts
Please help me out…
I had exactly this problem when I hooked up my HSM100 to a power supply. However many other have reported success running the sensor off an AC power supply.
Perhaps the HSM100 is sensitive to unstable power supplies. I haven’t checked mine, I’d have to borrow a scope for that and I got sidetracked by other stuff in the mean time You could try using a different power supply (preferably not one with a transformer, but a switching type), but perhaps soldering a 10uF and 100nF capacitor across the + and - terminals of the power supply will do the trick of stabilising the 4.5v. You could put these components inside the HSM100 instead of the batteries. (Do mind the polarity of the 10uF capacitor).
Thanks for your reply…
Soldering a 10uF and 100nF capacitor maybe helps.
Can you please tell me exactly how to do this ?
I’m not an electrician :-[ :-[
Thanks…
No, i have only the 100 nF as showed above.
Where do i have to solder the 10 uF, i’m sorry but i don’t understand it :-[
Can you please tell me what and how to do it ?
It’s driving me nuts.
That’s not the same. The 100nF ones are usually rectangular and smaller than the 10/100uF round ones.
You’ll have to solder the 10uF one like the one in the picture (one side will be marked - or +, make sure to solder it the right way round). Then just solder the 100nF to the + and - terminals in the same way.
mine stopped working correctly as well. constantly triggering. I now have motion disabled. but I use the ambient temerature in scenes and use the unit as a signal repeater so I don’t want to go back to batteries. Can’t wait for a solution vs. just buying another one and using it on batteries.
I’ve done 2 now just soldered to the top of the battery case… 4.5v. Switching adapter, not the old school transformer style, is that the kind you’re using?
Could be ghosts also… Are you getting abnormal drops in ambient temp by any chance?
:o
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After four months of flawless work my sensor also started to report randomly motion detection alerts. Eventually, I sent it back for repair last week, as I did not find any reason for this issue. I did not change anything on my end. E.g. I do not use any external power supply, I’m still on batteries.
Maybe there’s another problem with this device, which does not necessarly have anything to do with an external power supply…
The HSM100 are very susceptible to power line noises and over voltage. Most power supplies are made very cheaply and can cause false triggering and basically make your device unreliable.
You can try my cheap power supply solution here: http://forum.micasaverde.com/index.php/topic,9187.0.html but you may need a power supply with an output voltage of 7-18 volts DC.
All my HSM100 are now using this mod and are 100% reliable.
I tried to hook it up as you showed with your very nice pictures (thanks for that) but unfortunately it seems to be dead :-[
It did everything exactly as you described.
I wired up everything but before connecting it to the sensor i tested the outputvoltage and that gave me a nice 5v so there was nothing wrong with what i’ve done.
Even on batteries the sensor seems to be dead.
Don’t get me wrong, i don’t want to blame anybody here.
What could have gone wrong and is there maybe a way to test that the sensor is dead for sure ?
Does the temp and light level work? Have you adjusted device option 1-Sensitivity (0-255)? What happens if you lower the value to say 150? Let us know if that makes an difference in the sensitivity.
Thanks for your quick reply.
Temp and light level don’t work anymore.
I tried to remove the device from Vera but no success.
I changed the sensitivity to 150 but Vera just can’t configure the node anymore.
Even pressing the blue button doesn’t wake up the device.
I must have overseen something, for now i don’t want to give up yet.
By “removing the device from Vera” do you mean excluding it or did you just try to delete the device using the waste paper basket icon in the device? If you can’t exclude the device there is a good chance it is defective. By any chance at any time did you mistakenly reverse the polarity of the remote power supply?
Yes, i mean excluding but i can’t.
I’ve been very carefull concerning the polarity but never say never…
I always measured before connecting.
Anyway, i did something wrong so i’m afraid i have to buy another one. :-[
Would it be possible to use a stabilized power supply ?
If so, i will give that a try with a new sensor…
You could try using a different power supply (preferably not one with a transformer, but a switching type), but perhaps soldering a 10uF and 100nF capacitor across the + and - terminals of the power supply will do the trick of stabilising the 4.5v. You could put these components inside the HSM100 instead of the batteries. (Do mind the polarity of the 10uF capacitor).