There is, of course, the Nova https://hologram.io/store/nova-global-cellular-modem/36
One problem I came across a while back was installing the Hologram Python SDK but any modem you get these days should be pretty easy to interface with a socket setup to the Hologram Cloud
I have had the file system corrupt after a while with just switching it off. Is there a way to protect that? Read only?
This could become a problem if the device is in a remote location.
Hi,
The store does not have the omega 2S in it. Where can I get my hands on some and for what price?
Thanks..
Hi,
I have been using the cloud API to control the Onion so far, but is there an API interface through the use of curl commands, or similar, to integrate an API just over the local LAN? i.e. I have a device that I wish to control but it does not have public internet access.
How can I do this? any ideas? I guess it must be possible because the cloud interfaces with the Onion over the inernet already.
Thanks for any ideas..
For the permissions, both the folder and the key require the following:
chmod 700 /home/user/.ssh
chmod 644 /home/user/.ssh/authorized_keys
From https://superuser.com/questions/215504/permissions-on-private-key-in-ssh-folder
You can send the key by "secure copy" (similar to SSH) like this:
change directory to where the key is on the omega
scp id_rsa.pub <user>@<yourhost>:.ssh/authorized_keys
Where <user> is the SSH user for the remote login and <yourhost> is the host of the remote login.
You will be asked for a password initially.
This is quite an interesting project, thanks for posting.. How could we run a script or binary within the Debian shell automatically from boot?
Or a crontab? I have installed crontab but we are only running a shell here, so it misses out the init.d from a proper boot.
Ohh - I have mine going but haven't installed the SDK yet, so I'll do you a trade.. 
As with any USB device, they have a VID (Vendor ID) and PID (Product ID). The linux device will see the VID and PID but you will have to tell it what hardware this is.. Is it a keyboard? Mouse? How can it communicate with the Cellphone modem? Looking at the docs for the UBlox Sara-201, it says that it has a few connections but one of them is an AT command set interface. Historically (if you are old enough to remember the 9600 baud modems we used to access the internet with in the early 90's...) modems with an AT command set are based on serial links. So in this case I took a guess and just said that the device is a serial device.
To get the PID and VID, you need to do the following:
root@Omega-F5C5:/usr/bin# lsusb
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 003: ID 1546:1102 U-Blox AG
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
root@Omega-F5C5:/usr/bin#
So, device 3 is the U-Blox cell phone module. The ID 1546:1102 id the VID and PID. CD to /etc/modules.d and edit the file usb-serial with the contents, "usbserial vendor=0x1546 product=0x1102 maxSize=2048"
This includes the VID and PID from the command, "lsusb" above and tells the omega that there is a serial port.
root@Omega-F5C5:/etc/modules.d# cd /etc/modules.d
root@Omega-F5C5:/etc/modules.d# cat usb-serial
usbserial vendor=0x1546 product=0x1102 maxSize=2048
root@Omega-F5C5:/etc/modules.d#
Install screen with opkg install screen
then cd to the /dev directory and ttyACM1 should be there
pipe the port to screen
screen ttyACM1 <enter>
and then you are connected to the modem. Try AT <enter> and it should say OK.
Hi,
Does anybody else have any problems with the cloud not connecting? I have an Omega1 and a 2+ both not connecting to the cloud. The Omega1 shows as offline and the 2+ shows as online but is unable to connect due to an error.
Hi,
If anybody would be interested in working with me on finishing off an app with the omega1, please get in touch on the PM and we will set up a Skype call.
It needs a user, PHP front end to tie together some built python scripts and to send emails.
Also to perfect some of the scripts for remote 3g access and GPS location in the case that the device is stolen.
All of the hardware is done.
Thanks..
Have a look at this https://www.raspberrypi.org/forums/viewtopic.php?f=91&t=49465
Someone here pointed this out to e a while back..
Ahh - true enough. I replied to the wrong person - was supposed to be a reply to Brian..
ash is a smaller version than bash.. There's no B in it for a start...!
Hi,
Does anybody else get the file system randomly disappear on the Omega1? I have the root running on a usb through a hub. I First thought it was a loos connection but this has happened in exactly the same way on two completely different devices. here is the error I get:
BusyBox v1.23.2 (2016-07-08 19:27:03 UTC) built-in shell (ash)
cat: read error: Input/output error
[14908.630000] EXT4-fs error (device sda): ext4_find_entry:1289: inode #131140: comm ash: reading directory lblock 0
[14908.640000] EXT4-fs error (device sda): ext4_find_entry:1289: inode #130308: comm ash: reading directory lblock 0
[14908.650000] EXT4-fs error (device sda): ext4_find_entry:1289: inode #131140: comm ash: reading directory lblock 0
[14908.660000] EXT4-fs error (device sda): ext4_find_entry:1289: inode #131140: comm ash: reading directory lblock 0
[14908.670000] EXT4-fs error (device sda): ext4_find_entry:1289: inode #130308: comm ash: reading directory lblock 0
root@Omega-1E48:/#
root@Omega-1E48:/#
any ls after that returns a blank prompt. Also if I ftp into the device, it appears to be blank.
I would like to get to the bottom of the cause and also write a script that would detect this and rectify it if it happens. Currently I reboot and this fixes the problem. Any ideas on how to rectify without a reboot?
Thanks.
Thanks - I will have a look. I was... once aware of dd back in the late 90's whilst trying to dip my hand into a Sun Ultra1 Unix box.
Very good - thanks for that. Does anybody know how to make the, "Omega2.bin" file?
What I would like to do is fully configure an application, ready to go and then make two or three devices all the same, so having a compiled .bin image of the complete install that I could install in that way would be awesome..
Can you run the I2C as normal in python2 and return the values back to a program in python3?
I am thinking of doing this with pexpect:
http://pexpect.readthedocs.io/en/stable/install.html
OK - I have fixed this...
Odd though this may seem, I had someone else do a sanity check on my install (thanks..) and they did not have any problems at all..!
This led me to believe that the problem was local, but I had used two different Omega's. The problem was local. I happened to notice that my PC was constantly downloading at about 1 or 2 mb/s so I disabled the photo sync in the ICloud settings on the PC. Now it works.
Strange but true - wifi interference. But I thought TCP was an end to end connection...
Curiouser and curiouser.. 
Hi,
I am having problems with the openwrt opkg site where bad checksums are appearing. This makes installs very flakey. is anybody else experiencing problems with opkg?
I haven't in the past and I have used two different Omega's..
Does anybody have the same problem? How can this be fixed? Is there a mirror site?
The error is right at the bottom of this post and you can see that I have issued an opkg update at the start.
Another odd thing is that I had to install PHP to get over a dependency problem. Python stopped when it was looking for libbz2...
root@Omega-16FE:/www/php# opkg update
Downloading http://downloads.openwrt.org/chaos_calmer/15.05.1/ar71xx/generic/packages/base/Packages.gz.
Updated list of available packages in /var/opkg-lists/chaos_calmer_base.
Downloading http://downloads.openwrt.org/chaos_calmer/15.05.1/ar71xx/generic/packages/base/Packages.sig.
Signature check passed.
Downloading http://repo.onion.io/omega/packages/Packages.gz.
Updated list of available packages in /var/opkg-lists/chaos_calmer_onion.
Downloading http://repo.onion.io/omega/packages/Packages.sig.
Signature check passed.
Downloading http://downloads.openwrt.org/chaos_calmer/15.05.1/ar71xx/generic/packages/packages/Packages.gz.
Updated list of available packages in /var/opkg-lists/chaos_calmer_packages.
Downloading http://downloads.openwrt.org/chaos_calmer/15.05.1/ar71xx/generic/packages/packages/Packages.sig.
Signature check passed.
root@Omega-16FE:/www/php# opkg install python
Installing python (2.7.9-6) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05.1/ar71xx/generic/packages/packages/python_2.7.9-6_ar71xx.ipk.
Installing python-light (2.7.9-6) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05.1/ar71xx/generic/packages/packages/python-light_2.7.9-6_ar71xx.ipk.
Installing python-base (2.7.9-6) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05.1/ar71xx/generic/packages/packages/python-base_2.7.9-6_ar71xx.ipk.
Installing libffi (3.0.13-1) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05.1/ar71xx/generic/packages/packages/libffi_3.0.13-1_ar71xx.ipk.
Installing libbz2 (1.0.6-2) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05.1/ar71xx/generic/packages/base/libbz2_1.0.6-2_ar71xx.ipk.
Installing python-codecs (2.7.9-6) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05.1/ar71xx/generic/packages/packages/python-codecs_2.7.9-6_ar71xx.ipk.
Installing python-compiler (2.7.9-6) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05.1/ar71xx/generic/packages/packages/python-compiler_2.7.9-6_ar71xx.ipk.
Installing python-ctypes (2.7.9-6) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05.1/ar71xx/generic/packages/packages/python-ctypes_2.7.9-6_ar71xx.ipk.
Installing python-db (2.7.9-6) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05.1/ar71xx/generic/packages/packages/python-db_2.7.9-6_ar71xx.ipk.
Configuring python-base.
Configuring libffi.
Configuring libbz2.
Configuring python-light.
Configuring python-codecs.
Configuring python-ctypes.
Configuring python-compiler.
Collected errors:
* opkg_install_pkg: Package python-db sha256sum mismatch. Either the opkg or the package index are corrupt. Try 'opkg update'.
* opkg_install_cmd: Cannot install package python.
root@Omega-16FE:/www/php#
Thanks..
Hiya,
Try putting the vendor ID and the product ID into the file:
/etc/modules.d/hid-generic
Something like this:
$cat /etc/modules.d/hid-generic
hid-generic vendor=0x0123 product=0x1000 maxSize=2048
$
But note that you will have to use your product and vendor ID for the device you have. I "think" you can find those by pulling the device out of the usb port and then plugging it back in again. Think is shows on the console. If not, you might be able to find it in your other system in a similar place?