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What is the best way to detect VE Direct devices?
Or do you mainly have to listen to every serial device at 19200 baud rate? I am currently creating an C++ application for Linux that will convert the all the VEDirect calls into one JSON device array.
I've discovered with Linux you can use the udev c API to scan devices that are using the Victron USB cable.
I've posted my code here https://pastebin.com/KSCaFf2u
Example output:
/dev/ttyUSB0
/dev/ttyUSB1
Simple STATIC solution. Create a file in /etc/udev/rules.d e.g. "99_victron.rules" with the two lines (for e.g. my two devices/VE.Direkt kabel): (1)KERNEL=="ttyUSB[0-9]", ATTRS{idVendor}=="0403", ATTRS{idProduct}=="6015", ATTRS{serial}=="VE5FEM1C", MODE="0666" , GROUP="dialout", SYMLINK+="Victron.BMV" (2)KERNEL=="ttyUSB[0-9]", ATTRS{idVendor}=="0403", ATTRS{idProduct}=="6015", ATTRS{serial}=="VE6NMR62", MODE="0666" , GROUP="dialout", SYMLINK+="Victron.MPPT" Replace ATTRS{serial}=XXXXX with the serial number of the USB<->VE.Direct cable (can be checked e.g. with the program "usbview"). Then you have two new devices "/dev/Victrom.MPPT" and "/dev/Victron.BMV". Don't forget the permission for the devices.
Maybe the serial-scanner can help you starting a service for each new serial port. So that you can then do whatever you like on it.
Ks4z
