The core of the tracker is the ESP32 ... SIM800L GSM modem, but as it only works on 2G networks, provisions have been made in the board design to swap it out for a more modern module should ...

The hardware is surprisingly straightforward, with a resistive touch screen and a PCB featuring power management, an ESP32 main processor, and a GSM module. The 2G connectivity may not be the ...

A new component has arrived at the extensive Adafruit online electronics store this week in the form of the ESP32-WROVER-B Module ESP32 with PSRAM Module which is now available to purchase priced ...