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The board's main processor is a low power Arm® Cortex®-M0 32-bit SAMD21, like in the other boards within the Arduino MKR family. The Narrowband connectivity is performed with a module from u-blox, the SARA-R410M-02B, a low power chipset operating in the de different bands of the IoT LTE cellular range. On top of those, secure communication is ensured through the Microchip® ECC508 crypto chip. Besides that, the pcb includes a battery charger, and a connector for an external antenna.
Its USB port can be used to supply 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 the other is done automatically.
Tehnical specifications
The Arduino MKR NB 1500 is based on the SAMD21 microcontroller.
Microcontroller | SAMD21 Cortex®-M0+ 32bit low power ARM MCU (datasheet) |
Radio module | u-blox SARA-R410M-02B (datasheet / summary) |
Secure Element | ATECC508 (datasheet) |
Board Power Supply (USB/VIN) | 5V |
Supported Battery | Li-Po Single Cell, 3.7V, 1500mAh Minimum |
Circuit Operating Voltage | 3.3V |
Digital I/O Pins | 8 |
PWM Pins | 13 (0 .. 8, 10, 12, 18 / A3, 19 / A4) |
UART | 1 |
SPI | 1 |
I2C | 1 |
Analog Input Pins | 7 (ADC 8/10/12 bit) |
Analog Output Pins | 1 (DAC 10 bit) |
External Interrupts | 10 (0, 1, 4, 5, 6, 7, 8, 9, 16 / A1, 17 / A2) |
DC Current per I/O Pin | 7 mA |
Flash Memory | 256 KB (internal) |
SRAM | 32 KB |
EEPROM | no |
Clock Speed | 32.768 kHz (RTC), 48 MHz |
LED_BUILTIN | 6 |
Full-Speed USB Device and embedded Host | |
Antenna gain | 2dB (bundled antenna at the Arduino Store) |
Carrier frequency | LTE bands 1, 2, 3, 4, 5, 8, 12, 13, 18, 19, 20, 25, 26, 28 |
Power class (radio) | LTE Cat M1 / NB1: Class 3 (23 dBm) |
Data Rate (LTE M1 Half-Duplex) | UL 375 kbps / DL 300 kbps |
Data Rate (LTE NB1 Full-Duplex) | UL 62.5 kbps / DL 27.2 kbps |
Working region | Multiregion |
Device Location | GNSS via modem |
Power Consumption (LTE M1) | min 100 mA / max 190 mA |
Power Consumption (LTE NB1) | min 60 mA / max 140 mA |
SIM Card | MicroSIM (not included with the board) |
Length | 67.64 mm |
Width | 25 mm |
Weight | 32 gr. |
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