[Ovmsdev] Using ovms to reboot my firewall

[Craig Leres]

I recently set up my "dev" ovms module to give me a method to power 
cycle my home firewall and I thought I would share with the list.

Originally I was using a pfsense SG-1100. This particular version uses a 
problematic emmc flash memory for the system filesystem. These are not 
very robust.

After years of flawless operation I started having trouble with lockups. 
This made me search for an out-of-band method to power cycle it. 
Remembering that I had some of the prototype ovms pcb's Mark made (and 
some DB26 connectors) I decided to use a solid state relay to interrupt 
the power to the firewall (via the ovms cellular network connection).

By this point I had replaced the SG-1100 with a SG-2100 that I got from 
a buddy (with a nice M.2 slot replacing the emmc). It has a locking 
power connector and I was able to find compatible switchcraft inline 
parts. Using a type B solid state relay (normally closed) power is not 
interrupted when the ovms module is rebooted. Here's the script:

     vfs cat /sd/scripts/pfsense-cycle
     egpio output 9 0
     sleep 5
     egpio output 9 1

To run it I paste:

     script run /sd/scripts/pfsense-cycle

into the iphone ovms app.

I've attached a couple of pictures.

		Craig
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 1.JPG
Type: image/jpeg
Size: 151860 bytes
Desc: not available
URL: <http://lists.openvehicles.com/pipermail/ovmsdev/attachments/20240409/ffc8631a/attachment-0002.jpe>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 2.JPG
Type: image/jpeg
Size: 108900 bytes
Desc: not available
URL: <http://lists.openvehicles.com/pipermail/ovmsdev/attachments/20240409/ffc8631a/attachment-0003.jpe>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: ovms.png
Type: image/png
Size: 17730 bytes
Desc: not available
URL: <http://lists.openvehicles.com/pipermail/ovmsdev/attachments/20240409/ffc8631a/attachment-0001.png>