Hello
i am running the Victron on a RaspberryPI
two questions:
-Is there a command to see the temperature of the RaspberryPi board
-Is there a command to see the voltage and Amp that feed the RaspberryPi board
asked
RaspberryPi command for voltage that feed the RaspberryPi
Knowing about Raspberry pi's, getting the Power supply voltage seems to be a little difficult.
However getting the CPU temperature is fairly straightforward:
#cat /sys/class/thermal/thermal_zone0/temp
returns the temperature in deg C x 100 so a script to sort out the maths would be:
#!/bin/bash temp=$(</sys/class/thermal/thermal_zone0/temp) echo "CPU => $((temp/1000))'C"
So relatively easy to add this to a d-bus service to make it available on the bus.
hello
i am new to this.. Could you tell me how to add it to the d-bus?
Where I start depends on where you are starting from - and where you want to get to.
Do you know how to use nano to edit files, how to check the execute permissions on files, how to configure /data/rc.local to replace files when new versions of software are installed, do you understand python, how to create and check a soft directory link. etc. etc ? It is quite possible you do, and in which case my description can be simple, but if not then there is more learning/teaching to be done.
I suggest you have a look at my post about getting an i2c dbus service running, I just about have that working now. The script you need dummy_vedbus.py is linked to from that post you then need to:
- Change the service name and paths that you will publish.
- Modify the update function in the code to write the temperature to the dbus path.
- Remove the call to the increase count function.
- Follow pretty much what I have done to get the service linked in to start on reboot.
- Debug you code and add stuff to make it recover when it hits an error.
As to where it might get to... even if the values are on the d-bus. They won’t be visible on the screen of the Venus console or on the VRM so what will you do with the values when they are available from d-bus?
