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?