Sim800L supports General Packet Radio Service (GPRS) for connecting to the internet with HTTP. The module has built in TCP/IP stack that can be accessed with AT commands. This can be very handy for persistent data logging on low bandwidth networks. We will first use the AT commands to make a HTTP GET request to fetch a simple page and then use the library.
Going further I would also like to explore possibility of running MQTT, which is more suitable for low data rate and seamless logging. So lets get started.