I never really got this squared away. It seemed like it was working, but I couldn’t send messages, etc. I am back at the project now and can’t even seem to get the modem connected to a network.
In the process of my most recent troubleshooting I have started with a fresh Debian install on SD ()
root@raspberrypi:~# cat /etc/os-release PRETTY_NAME="Raspbian GNU/Linux 9 (stretch)" NAME="Raspbian GNU/Linux" VERSION_ID="9" VERSION="9 (stretch)" ID=raspbian ID_LIKE=debian HOME_URL="http://www.raspbian.org/" SUPPORT_URL="http://www.raspbian.org/RaspbianForums" BUG_REPORT_URL="http://www.raspbian.org/RaspbianBugs"
I did a fresh CURL install of hologram-python following the “Get Started / Nova / RasPi” tutorial from Hologram.
I have a 2.4 Amp USB power supply for the RasPi which is a Pi 3 – B. I have only power, Ethernet and the modem connected (trying to ensure the issue is not lack of power or reduced voltage to the modem).
The Sim I am using is ICCID: 8944502407175478669, and it was verified with the CLI command, so the modem recognizes that it has a SIM card installed.
The modem, once the PI and modem are all powered up, displays a solid red LED in the lower left (holding the pi and modem with the main flat board top facing you and modem sub connection facing right). I believe this indicates power to the modem. No blue LED ever comes on (which I think indicates network connection / data.)
When I try a connect command, I get the following.
root@raspberrypi:~# hologram network connect -v INFO: Detected modem Nova_U201 INFO: found working port at ttyACM0 INFO: chatscript file: /usr/local/lib/python2.7/dist-packages/Hologram/Network/Modem/chatscripts/default-script INFO: Instantiated a Nova_U201 interface with device name of /dev/ttyACM0 INFO: Connecting to cell network with timeout of 200 seconds INFO: Checking for existing PPP sessions INFO: Failed to connect to cell network
I know the cell signal in this location is fine.
I’m not sure what else to try. Can you recommend any troubleshooting ideas that might provide me more information? It seems like this should be relatively plug and play based on the online docs. But it just isn’t working for me.
BTW, I did note that the LED’s (red/blue) seem to be reversed in the online manual here (https://hologram.io/docs/reference/nova/user-manual/) compared to the print copy I have and the actual modem I have. I only have a solid red led in the lower left corner of the modem when held with the usb connection to the right and the ublox label facing me.