You can find hardware design for this board in GSM communications SIM800 breakout hardware repository. Soldered invests vast amounts of time into hardware & software for these products, which are all ...

This is a comprehensive Arduino library to make HTTP or HTTPS communication through the SIMCom SIM800L module. The library has been designed to limit the memory usage by working with the same shared ...

The Fingerprint Door Lock (FPDL) using Arduino with SIM800L research is designed to improve the security and convenience of door access control by integrating fingerprint recognition with Arduino and ...

LilyGo has launched several TTGO boards usually based on Espressif ESP8266 or ESP32 over the years. Here’s another that could be useful if 2G cellular networks have not sunset in your country: TTGO ...