Arduino UNO SPE Shield adds Single Pair Ethernet (SPE) and RS485 to Arduino UNO and compatible boards, notably the Arduino UNO R4, via a Microchip LAN8651 SPE controller. Single Pair Ethernet relies ...

Place the SIM800L library folder into your \Documents\Arduino\libraries folder. You may need to create the libraries subfolder if its your first library. Restart the ...

All configurable settings are stored in EEPROM and automatically recalled upon restart. The hardware comprises an Arduino Nano or compatible, a standard 16x2 LCD display (used in 4-bit mode) with ...