Adding limit switches to your Longer Ray 5? Or performing the 20 watt upgrade with limits? You will need to update the firmware. This is not difficult, but I have received several request to show how to do it and where to get the firmware.
Firmware package source: https://moonshinecrafts.com/faq/ Bottom of page.
Use at own risk. I assume zero responsibility and this is provided "AS IS" since the Longer website no longer offers it.
I am not affiliated with Longer, not sponsored by them.