Hi.
Just installed this wonderful setup on my rpi3. And the l the first thing I am missing is how to monitor space left on /dev/sda1
Is there an easy way?
are you referring to the external USB device?
Hi
Yes, it shows up in “DF” as /dev/sda1 
you will need use GitHub - myDevicesIoT/Cayenne-MQTT-Python: Python Library for Cayenne MQTT API to send data to cayenne and you will also need the python code to read the storage of the USB