Now look into the connectivity of the LTE modem. Ensure the network is brought up upon start, and include one warning beep if there's an issue. Attempt to connect a few times just in case. Include a basic ZeroTier installation, and have the demo Pi join a network. Then bring up SSH configured in a way to listen only on the ZeroTier interface. You can configure this as such and/or add one or two basic firewall rules. Consider some demo SSH public key to be used for connectivity so that password login is disabled for SSH
Would encourage checking into the LTE modem (the quoted model), if you don't have it already. Note ZeroTier atop this isn't too difficult
A future scope would still use the LTE modem as primary, but may "try out" WiFi locally to see if this is an alternate network. Both passwordless networks (tried one at a time) and those in some local database of encrypted networks (perhaps provided remotely). Since WiFi can fail, let WiFi connection be secondary
WaaromZoMoeilijk
commented
3 years ago
Now look into the connectivity of the LTE modem. Ensure the network is brought up upon start, and include one warning beep if there's an issue. Attempt to connect a few times just in case. Include a basic ZeroTier installation, and have the demo Pi join a network. Then bring up SSH configured in a way to listen only on the ZeroTier interface. You can configure this as such and/or add one or two basic firewall rules. Consider some demo SSH public key to be used for connectivity so that password login is disabled for SSH
For a USB 4G LTE adapter I got https://www.thinkpenguin.com/gnu-linux/usb-4g-lte-advanced-modem-gnulinux-tpe-usb4glte but i
Would encourage checking into the LTE modem (the quoted model), if you don't have it already. Note ZeroTier atop this isn't too difficult A future scope would still use the LTE modem as primary, but may "try out" WiFi locally to see if this is an alternate network. Both passwordless networks (tried one at a time) and those in some local database of encrypted networks (perhaps provided remotely). Since WiFi can fail, let WiFi connection be secondary