I successfully ran curl -L hologram.io/python-install | bash plus python-update, without any error messages. I then rebooted, inserted the Nova modem, and tried to connect. Got ERROR: Unable to detact a usable serial port.
Any ideas? Pi newbie here.
pi@raspberrypi:/boot $ sudo hologram version
0.7.2
pi@raspberrypi:/boot $ uname -a
Linux raspberrypi 4.9.59-v7+ #1047 SMP Sun Oct 29 12:19:23 GMT 2017 armv7l GNU/Linux
pi@raspberrypi:/boot $ sudo hologram modem connect -v
INFO: Detected modem NovaM_R404 ERROR: Unable to detect a usable serial port
pi@raspberrypi:~ $ lsusb
Bus 001 Device 005: ID 04b3:3025 IBM Corp. NetVista Full Width Keyboard
Bus 001 Device 004: ID 046d:c077 Logitech, Inc. M105 Optical Mouse
Bus 001 Device 006: ID 05c6:90b2 Qualcomm, Inc.
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. SMSC9512/9514 Fast Ethernet Adapter
Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp. SMC9514 Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Not that I’m aware. This is a brand new pi installation with USB keyboard/mouse, ethernet and HDMI connected.
I also followed someone else’s suggestions about uninstalling and reinstalling all the hologram-python packages and also the ppp package, then rebooting.
pi@theomarpi:~ $ sudo hologram version
0.7.2
pi@theomarpi:~ $ uname -a
Linux theomarpi 4.9.35-v7+ #1014 SMP Fri Jun 30 14:47:43 BST 2017 armv7l GNU/Linux
pi@theomarpi:~ $ sudo hologram modem connect -v
INFO: Detected modem NovaM_R404
ERROR: Unable to detect a usable serial port
pi@theomarpi:~ $ lsusb
Bus 001 Device 007: ID 05c6:90b2 Qualcomm, Inc.
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. SMSC9512/9514 Fast Ethernet Adapter
Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
pi@theomarpi:~ $
2g/3g Nova works fine.
pi@theomarpi:~ $ sudo hologram modem connect -v
INFO: Detected modem Nova_U201
INFO: found working port at /dev/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: Rerouting packets to ppp0 interface
INFO: found working port at /dev/ttyACM1
INFO: Successfully connected to cell network
pi@theomarpi:~ $ lsusb
Bus 001 Device 010: ID 1546:1102 U-Blox AG
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. SMSC9512/9514 Fast Ethernet Adapter
Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
pi@theomarpi:~ $
pi@theomarpi:~ $ sudo modprobe option
pi@theomarpi:~ $ sudo sh -c 'echo -n 05c6 90b2 > /sys/bus/usb-serial/drivers/option1/new_id’
pi@theomarpi:~ $ sudo hologram modem connect -v
INFO: Detected modem NovaM_R404
INFO: found working port at /dev/ttyUSB2
INFO: chatscript file: /usr/local/lib/python2.7/dist-packages/Hologram/Network/Modem/chatscripts/default-script
INFO: Instantiated a NovaM_R404 interface with device name of /dev/ttyUSB2
INFO: Connecting to cell network with timeout of 200 seconds
INFO: Checking for existing PPP sessions
INFO: Rerouting packets to ppp0 interface
INFO: Successfully connected to cell network
Thanks! the two added steps got me past the Error: unable to detect a usable serial port.
Now to the new issue:
raise PPPError(‘Modem hangup - possibly due to an unregistered SIM’)
PPPError: Modem hangup - possibly due to an unregistered SIM
INFO: Failed to connect to cell network
My SIM is activated/registered, so I assume the nearest tower might not be handling the Cat-M1 connection request gracefully…
Hi Steven, if you’re sending AT commands directly to the modem you can use AT+COPS=? to do a scan of available networks. Sometimes this command can take >1min to return a value.
I tried sudo hologram modem signal and got 99,99.
It looks like 99 is a placeholder for no signal.
I replaced the attached ethertronics antenna with a larger antenna (another flat flexi with about 4x the area) and was able to establish a connection, with signal returning 25,99. You might want to re-evaluate the antenna you send out with the modems.
Thanks for your help!