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This Arduino MKR Narrow Band IoT development board is the perfect choice for use with devices in remote locations without an internet connection, or in other situations in which power isn't available such as field monitoring systems.
Should your Arduino IoT project need Narrow Band communication then this board has the easy to use Arduino ecosystem and is fully compatible with Narrow Band IoT NB classes and LTE CAT M1 networks.
The board is designed for global use, providing Cat M1/NB1 deployed bands 2, 3, 4, 5, 8, 12, 13, 20, 28 (Vodafone, AT&T, T-Mobile USA, Telstra, Verizon).
The MKR NB 1500 uses a specialised chip with a preset charging current of 350mAh. The MINIMUM capacity of the Li-po battery used should be 700mAh. Smaller cells will be damaged by this current and may overheat, develop internal gasses and explode, setting on fire the surroundings. A bigger cell will take more time to charge, but won't be harmed or overheated.
The chip is programmed with four hours of charging time, then it goes into automatic sleep mode. This limits the amount of charge to 1400 mAh per charging round.
Powerful MCU
3.3V Operating voltage
Digital, PWM, analog pinout
Please note: The MKR NB 1500 has to be used with an antenna that can be attached to the board with the micro UFL connector. Please check it can accept frequencies in the Narrow Band or CAT M1. For best results do not attach the antenna to a metallic surface such as a car chassis.
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