I'm trying to set up an Arduino Mega with a SIM800L module and trying to get Modbus TCP running on said Mega. I've set Modbus TCP over wifi and serial before but I used libraries for those. The problem is, I can't find a suitable library for SIM800L that has Modbus support in it. The project is supposed to get Modbus TCP to places without wifi, using a static IP enabled sim card. My question here is, am I missing something? While working with ESP8266 and Serial, I was able to find a ton of libraries to work with, but SIM800 series returns nothing for me. Thanks!