Arduino as Gateway via USB crash on PI



  • I'm investigating what's the problem here.

    Pi1 with domoticz and Arduino UNO (original), both feeded via a HUB USB with power (so Arduino did not get power from PI directly).

    Sometimes, in some hour, I did not get anymore update from both or single node (I have a powered relay + ds18b20 and a battery dht22).

    Investigating and opening the serial I don't get nothing, but after a reboot of Arduino (with the button on the Arduino itself), I have the serial flooded from:

    0;255;3;0;9;TSF:MSG:READ,0-0-0,s=0,c=3,t=2,pt=0,l=11,sg=0:Get Version
    0;255;3;0;9;!TSF:MSG:LEN,0!=18
    0;255;3;0;9;TSF:MSG:READ,0-0-0,s=0,c=3,t=2,pt=0,l=11,sg=0:Get Version
    0;255;3;0;9;!TSF:MSG:LEN,0!=18
    0;255;3;0;9;TSF:MSG:READ,0-0-0,s=0,c=3,t=2,pt=0,l=11,sg=0:Get Version
    0;255;3;0;9;!TSF:MSG:LEN,0!=18
    0;255;3;0;9;TSF:MSG:READ,0-0-0,s=0,c=3,t=2,pt=0,l=11,sg=0:Get Version
    0;255;3;0;9;!TSF:MSG:LEN,0!=18
    0;255;3;0;9;TSF:MSG:READ,0-0-0,s=0,c=3,t=2,pt=0,l=11,sg=0:Get Version
    0;255;3;0;9;!TSF:MSG:LEN,0!=18
    0;255;3;0;9;TSF:MSG:READ,0-0-0,s=0,c=3,t=2,pt=0,l=11,sg=0:Get Version
    0;255;3;0;9;!TSF:MSG:LEN,0!=18
    0;255;3;0;9;TSF:MSG:READ,0-0-0,s=0,c=3,t=2,pt=0,l=11,sg=0:Get Version
    0;255;3;0;9;!TSF:MSG:LEN,0!=18
    0;255;3;0;9;TSF:MSG:READ,0-0-0,s=0,c=3,t=2,pt
    

    The serial is flodeed continuosly.

    For some weeks, I did have the PI directly feeded via Samsung charger + Arduino with direct power from USB. I did want to change with a autopower HUB usb to no stress the PI. All is behind an UPS, to filter home current (not the max stability in my house, I need to say).

    Do you have some idea?

    Thank you


  • Mod

    @sineverba !TSF:MSG:LEN,0!=18 typically indicates an error in the SPI transfer with the radio. How did you wire things up? Jumper wires can be the cause of flaky connections.



  • The issue seems to be related to the USB hub powered. Seems that Arduino feeded directly from pi via USB goes well ....


  • Mod

    @sineverba is gnd on arduino connected with gnd on raspberry pi?



  • @mfalkvidd they are connected only with USB cable


  • Mod

    @sineverba if you can, check with a multimeter that the usb hub grounds the different usb ports together. If it doesn't, that could be the cause.


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