MainThread RFM2Pi thread is dead

Submitted by Scram on Sun, 10/01/2016 - 11:43

Hi,

i have a problem using the latest SD card build from December. All things i found about this subject didn't help so far. Means i googled alot...

Version is:

I set up the Raspberry from the image and up to now everything seemed to run as expected but now i added the RFM69Pi 433Mhz Raspberry Pi Base Station Receiver Board (868MHz) and the problems began. As long as i don't send anything its catching up noise and in the emonhub log i see bad packets:

2016-01-10 11:19:29,491 DEBUG    RFM2Pi     device settings updated: E i5 g212 @ 868 MHz
2016-01-10 11:19:29,598 DEBUG    RFM2Pi     Discarding RX frame 'unreliable content'? 35 114 12 225 207 120 247 244 99 152 72 220 22                                                                     68 237 233 66 78 116 170 192 (-100)
2016-01-10 11:19:35,431 DEBUG    RFM2Pi     Discarding RX frame 'unreliable content'? 142 99 195 166 253 94 2 203 239 165 246 199 15                                                                     255 115 123 70 21 126 247 113 (-95)
2016-01-10 11:19:38,255 DEBUG    RFM2Pi     Discarding RX frame 'unreliable content'? 172 126 217 46 236 32 7 253 24 159

BUT

Once i start my (custom) Sender Node trying to send 2 Integer values the RFM2Pi Thread is crashing immediately after one packet.

2016-01-10 11:20:39,866 DEBUG RFM2Pi 7 NEW FRAME : OK 19 215 0 124 2 (-51)
2016-01-10 11:20:40,070 WARNING MainThread RFM2Pi thread is dead
2016-01-10 11:20:40,294 WARNING MainThread RFM2Pi thread is dead
2016-01-10 11:20:40,506 WARNING MainThread RFM2Pi thread is dead

I also tried to debug via Minicom and i'd say what the node is sending should be perfectly ok (its all fake data)!?

Sending two integers:

rfPayload.temperature = 215;
rfPayload.humidity = 636;

minicom -D /dev/ttyAMA0 -b 38400

OK 19 215 0 124 2 (-49)
OK 19 215 0 124 2 (-48)
OK 19 215 0 124 2 (-47)
OK 19 215 0 124 2 (-47)
OK 19 215 0 124 2 (-50)

My Emonhub.conf is edited to:

[[19]]
    nodename = Balkonsensor
    firmware = JEE_Node_V0_1
    hardware = JEENODE
    [[[rx]]]
       names = temperature, humidity
       datacode = h, h
       scales = 0.1,0.1
       units = C,%

Trying for hours now but i cant' figure out what the problem might be here?

Also tried:

[[19]]
    nodename = Balkonsensor
    firmware = JEE_Node_V0_1
    hardware = JEENODE
    [[[rx]]]
       names = temperature, humidity
       datacode = h
       scales = 0.1

No difference. Something causes a hickup and it never recovers from this...

Downstream everything works at the moment. When i inject data via a MQTT Client to topic "emonhub/rx/19/values" the emoncms behaves as it should and recognizes the numbers. Just the path from the /dev/ttyAMA0 causes trouble.

Re: MainThread RFM2Pi thread is dead

Submitted by pb66 on Sun, 10/01/2016 - 12:41.

Just to confirm what have, the custom node is sending via rf and the rfm2pi is receiving correct? this isn't in-place of the rfm2pi. Can you then attach a longer mixed log of the "noise" and custom packets just to see if there are any other entries or formatting anomalies etc.

How frequently are these packets received at emonhub ?

there are some anomolies in the 2 emonhub.conf examples you've given, I would not expect either to work but as I would not expect either to cause a crash either, it may just be typo's in the post. the first one has "datacode = h, h" it needs to be "datacode = h" or "datacodes = h, h" likewise in the second you have "scales = 0.1" it would need to be "scale = 0.1" or "scales = 0.1, 0.1". any combination or the correct variations will work, but you cannot have a singular key name for multiple values or a plural key name for a single value (unless it is for a single value payload of course).

If in doubt, for a test, just comment out the whole [[19]] section in the conf and you should see unscaled values pass through emonhub as the defaults are datacode = h and scale = 1 if nothing is defined.

Paul

Re: MainThread RFM2Pi thread is dead

Submitted by Scram on Sun, 10/01/2016 - 13:07.

You're King man.

The tiny little "s" makes the bug difference ;-)))))))

Changed my emonhub.conf to:

...

[[19]]
    nodename = Balkonsensor
    firmware = JEE_Node_V0_1
    hardware = JEENODE
    [[[rx]]]
       names = temperature, humidity
       datacodes = h, h
       scales = 0.1, 0.1
       units = C, C

...

It seems to crash the python script "emonhub_interface.py" if you mess around with singular and plural.

Thanks alot. Great system for me to learn more.

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