Driving an array of SIM800L modules

Projects General Guidance
1

I'd like to connect multiple SIM800L modules to a single project.
It will be used to send and receive SMS, so I just need its serial TX and RX.

My single other requirement is LAN connectivity.

In a best case scenario like to be able to continuously address them rather than to switch between them.

I could 'just' put a bunch of USB-to-serial but such solution hardly can be called clean. I'd rather go for a daughterboard solution.

Any suggestions for hardware?

2

If you’re looking for LAN to serial, I used to use Comtrol Rocketport modules & devices with multiple ports per unit.