MrWorf

Correct, those files are on the SD Card, in the volume called "BOOT" The systemctl commands need to be run on the command line, they will disable some services and will not need to be run again once done once. Don't forget that these need to be run as root, changing so you run all commands as root can be done by issuing the following command: sudo su This will make you root and any command you run after this point will be run as root, the same as if you prefixed all commands with sudo Hope this helps

Don't forget these steps: https://github.com/mrworf/serial-bridge/blob/main/OPTIMIZE_BOOT.md#step-1-free-up-the-serial-port This is important, because there's quite a few things which will interact with the onboard serial port if you don't

Did you install the required module by running sudo apt install python3-serial ?

He only confirmed the PIN out for the RS232 port, the extension pins I mapped out myself it wouldn't surprise me if there is UART and/or RS232 on the extension. If you find out, please update the github project so others can leverage it since yeah, the loop isn't pretty

Hi, you should be able to leverage a lot of learnings from my github project, including how to speed up boot times. It's all documented with pictures and all. If you do the 2413U and update with a PR it would be perfect (that way we keep it in one place)

I tapped in the top ones because it was easier to access. But if I would guess, I'd say both top and bottom are the same and they just used a dual connector for physical stability, however I never confirmed this so YMMV. By putting the RPi inside the case, I use all the space which would normally have been used by the Zigbee/Zwave card so running both would be tricky, also don't know about the power envelope, running RPiZ and an expansion card might cause issues, but I don't know. I use HomeAssistant for Zwave anyway so it's not an issue for me. I briefly considered tapping into the RS232 internally but I decided against it since I didn't want to make any physical modifications to my ISY. This way I can easily replace the board should I need to. I'd caution against tapping into the ISY UART directly since I do believe there might some issues with voltage drops or similar since you'd still have an RS232 converter sitting at the end of the UART which could cause issues.

Zero. It uses signaling to detect data from either serial port at which point it will fetch available data and transmit. Most of the time it's spent in waiting mode. The Insteon network isn't very chatty so amount of data is minimal, the highest load would be on boot since the ISY994 will query the insteon network, but even then the datarate is super low (in comparison to for example wifi).

Very nice setup! Me likey!

Been using a Pi zero because it's cheap It works with pretty much anything that can run linux and python. So any Raspberry Pi would work. I know a number of people have had success with this and my ISY994+RPiZ hybrid has been chugging along very nicely since my last post. Only thing really remaining is if there's any interest in a dedicated SDCard image to simplify setup? It's quite an undertaking but can be done if there's enough interest. It would be tailored to be minimal and would most likely have little to no network support since it's not really needed.

ISY should complain if it cannot talk to the PLM. But if you select this You should get something like this Maybe the issue is that you switched PLM and haven't migrated to it? Because if you don't migrate, insteon units will ignore your messages.

Just know that install will not speed up the boot process, just install all necessary pieces

Forgot to push, it's there now

Not to nitpick but 0.0.0.0 is not a valid IP address for a device

Or perhaps the ISY could handle reconnect of both PLM and polyisy? Delays are the worst workaround ever since they don't really solve the issue just the symptom

Uhm... so... I couldn't help myself... Yupp, it fits ... What you're seeing here is the first ISY994i with built-in Raspberry Pi Zero Wireless being powered by the ISY itself. Turned out that the first pin on the top right provides 5V, followed by 3.3V followed by GND, as can be seen here The tricky thing was making sure that the serial bridge was started fast enough when coldbooting the RPi. Goal is to update the README.md with instructions for doing this, since it's crucial for the ISY to be able to find the PLM. If it's too slow to start the bridge, the ISY will just assume nothing is connected. If you can't wait, the following resource should get you started on the right path http://himeshp.blogspot.com/2018/08/fast-boot-with-raspberry-pi.html. I'm pretty sure disabling network would further improve speed, but I like that I can SSH into my RPiZW