Sensebender Micro
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My NRF's are the same $1 nrf's listed in the mysensors store, so probably fake. But I have still measured them to draw ~900nA in powerDown.
But I think I have found the culprint now. It seems the extra 20uA is caused by Arduino 1.6.5 (it may be that my installation is faulty).
My test setup:
- pro mini
- nrf
- a simple sketch that does gw.sleep(60s)
1st test: sketch compiled & uploaded via Arduino 1.0.5-r2: 6uA
2nd test: sketch compiled & uploaded via Arduino 1.6.5: 24uA -
I'm back with bad news ... My 5th sensebender have a lot of st:fail like the first one. But now I know why !
There is only one same things between the two board which fails : The FTDI connector. It's 90° connector and pins are just below the antenna. And I think tunning is not ok.
So, when I go to work I try to remove the FTDI connector and see if connection is better !
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So now the good news. I "repair" my 1st SenseBender (only two wire but one on the ATMega) and it works (with the same radio wich failed). I remove the FTDI header and everythings is ok. So now I'm sure the problem is the FTDI header near the antenna. And be carefull, we can have the same problem with battery for example. I suppose minimal distance is about 3.2 cm (lambda/4).
But now I have a question : How can I update sketch without header (0° header doesn't fit in case). OTA ? Is ther a tutorial for OTA update with out of the box SenseBenderMicro ?Thank for your help !
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I tried uploading the sensebender sketch using 1.0.5-r2 with board config "pro mini 328 3.3V 8MHz". The si7021 doesn't work in this configuration, but I managed to get a sleep current of ~6.8uA
I can provide the binary output from the two IDE versions if someone can give me an indication where to find the build binaries.
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@mvader
I have so far had no problems running my PIR sensors at 3.3v with the following hack.http://techgurka.blogspot.com/2013/05/cheap-pyroelectric-infrared-pir-motion.html
You can not do this with all PIR Sensors from what I understand, but one of the ones listed in the MySensors store is what I've been using. Go down to the bottom of the article.
@gbfromhb said:
@mvader
I have so far had no problems running my PIR sensors at 3.3v with the following hack.http://techgurka.blogspot.com/2013/05/cheap-pyroelectric-infrared-pir-motion.html
You can not do this with all PIR Sensors from what I understand, but one of the ones listed in the MySensors store is what I've been using. Go down to the bottom of the article.
I just wanted to follow up and say thanks for the link/info
i was able to get that working.
surprised that they just don't offer a 3v pin.. it works great the way that link shows
Thanks again! -
Has anybody built a box for the standard Sensebender Micro with 2 AA batteries yet.
I would like to get the .stl files if so
Thanks Doug@5546dug said:
Has anybody built a box for the standard Sensebender Micro with 2 AA batteries yet.
I would like to get the .stl files if so
Thanks DougHi Doug,
@ServiceXP has posted this one: http://forum.mysensors.org/topic/1566/mysensors-sensebender-micro-3dp-case
Cheers
Al -
Has anyone been able to "Include" it to VERA UI7, My Sensebender borad is working fine according to the output from the Arduino terminal window - it request a node id, but will not "include". I'm using the default code already installed in Sensebender Micro board.
/Kurt
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I just tried to order something from them and for some reason DHL is now the only available ( US ) shipping option, and it's quite expensive. The sensorbenders I ordered last month were ~$6 shipping, the other components I looked at today via DHL (similar size) were $46, so might be worth holding off a bit until they restore the air-mail option.
