I am searching for an update tuto for built an homemade gateway with a raspberry and a ic880a.
Before I have used this one : Home · ttn-zh/ic880a-gateway Wiki · GitHub . It was working perfectly . However from the update V2 to V3 , my gateway is not anymore working.
I use the setup as @bert2713d has and was successful in upgrading it to V3.
Click in the github on ISSUES, than TTN V3 MIGRATION. Here you will find the solution.
Watch out with the “shell reset script” on my PI with Buster , i couldnt use it.
It seems like the ic880a has a reset pullup on the board , and as soon as the pi reset script exited , the pin wasn’t driven (was floating) , and reset was active again (measured 2.6V).