ARDUINO MKR NB 1500 allows you to add narrowband communication to your project. It is the perfect choice for devices in remote locations without an Internet connection or in situations where power is not available such as field installations, remote metering systems, solar powered devices or other extreme scenarios. The board's main processor is a low-power 32-bit Arm® Cortex®-M0 SAMD21, as in the other boards in the Arduino MKR family. Narrowband connectivity is performed with a module from u-blox, the SARA-R410M-02B, a low-power chipset operating in the different bands of the cellular IoT LTE range. In addition, secure communication is provided by Microchip®'s ECC508 cryptographic chip. Besides that, the pcb includes a battery charger and a connector for an external antenna. This board is designed for global use, providing connectivity on the Cat M1 / NB1 bands of LTE 1, 2, 3, 4, 5, 8, 12, 13, 18, 19, 20, 25, 26, 28. Operators offering services in this part of the spectrum includes: Vodafone, AT&T, T-Mobile USA, Telstra and Verizon, among others.
Its USB port can be used to provide power (5V) to the board. It has a Li-Po charging circuit that allows the board to run on battery power or an external 5-volt source, charging the Li-Po battery while running on external power. Switching from one source to another is done automatically.
If you're still deciding on the right wireless protocol for your solution, Arduino's MKR family has some alternatives to offer:
MKR FOX 1200: for your UE solutions on Sigfox infrastructure.
MKR WAN 1310: if you want to experiment with LoRa® or LoRaWAN
MKR GSM 1400: if you look at global coverage, GSM / 3G is the most extensive network in the world.
