Arduino MKR FOX 1200

Code: ABX00014
Arduino MKR FOX 1200
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Getting Started
Sigfox 32 bit ARM < 20 mA Microusb 5V Standard (~20) Regular

EU version only - US version not available yet
MKR FOX 1200 is a powerful board that combines the functionality of the ZERO and SigFox connectivity. It is the ideal solution for makers wanting to design IoT projects with minimal previous experience in networking having a low power device.

  • Overview
  • Tech Specs
  • Documentation
  • Arduino MKR FOX 1200 has been designed to offer a practical and cost effective solution for makers seeking to add SigFox connectivity to their projects with minimal previous experience in networking. It is based on the Atmel SAMD21 and a ATA8520 SigFox module.

    The design includes the ability to power the board using two 1.5V AA or AAA batteries or external 5V. Switching from one source to the other is done automatically. A good 32 bit computational power similar to the Zero board, the usual rich set of I/O interfaces, low power SigFox communication and the ease of use of the Arduino Software (IDE) for code development and programming. All these features make this board the preferred choice for the emerging IoT battery-powered projects in a compact form factor. The USB port can be used to supply power (5V) to the board. The Arduino MKR FOX 1200 is able to run with or without the batteries connected and has limited power consumption.

    Warning: Unlike most Arduino & Genuino boards, the MKRFOX1200 runs at 3.3V. The maximum voltage that the I/O pins can tolerate is 3.3V. Applying voltages higher than 3.3V to any I/O pin could damage the board. While output to 5V digital devices is possible, bidirectional communication with 5V devices needs proper level shifting.
    EU version only - US version not available yet

    You can find here your board warranty informations.

    Check your area coverage on the SigFox website

    Getting Started

    You can find in the Getting Started section all the information you need to configure your board, use the Arduino Software (IDE), and start tinker with coding and electronics. Full details and examples on how to use the SigFox interface are available in the SigFox Library reference page.

    Need Help?

  • Microcontroller SAMD21 Cortex-M0+ 32bit low power ARM MCU
    Board Power Supply (USB/VIN) 5V
    Supported Batteries(*) 2x AA or AAA
    Circuit Operating Voltage 3.3V
    Digital I/O Pins 8
    PWM Pins 12 (0, 1, 2, 3, 4, 5, 6, 7, 8, 10, A3 - or 18 -, A4 -or 19)
    UART 1
    SPI 1
    I2C 1
    Analog Input Pins 7 (ADC 8/10/12 bit)
    Analog Output Pins 1 (DAC 10 bit)
    External Interrupts 8 (0, 1, 4, 5, 6, 7, 8, A1 -or 16-, A2 - or 17)
    DC Current per I/O Pin 7 mA
    Flash Memory 256 KB
    SRAM 32 KB
    EEPROM no
    Clock Speed 32.768 kHz (RTC), 48 MHz
    Full-Speed USB Device and embedded Host
    Antenna power 2dB
    Carrier frequency 868 MHz
    Working region EU
    Lenght 67.64 mm
    Width 25 mm
    Weight 32 gr.
  • OSH: Schematics

    The MKR FOX 1200 is open-source hardware! You can build your own board using the following files:



    Download the pinout in PNG format


    Check your area coverage on the SigFox website

    Data planning

    The MKR FOX 1200 price includes a subscription to the SigFox network for two years. The plan will be automatically activated after the fourth message has been sent. You can send up to 120 messages per day.


    The MKR FOX 1200 is shipped with a GSM antenna that can be attached to the board with the micro UFL connector. If you want to change the antenna please check that it can accept frequencies in the SigFox's range (868 Mhz).

    Batteries, Pins and board LEDs

    Battery capacityThe connected batteries must have a nominal voltage of 1.5V 

    Battery connectorIf you want to connect a battery pack (2x AA or AAA) to your MKRFOX1200 use the screw terminal block.Polarity : as reported on the silk in the bottom of the board, positive pin is the closest to the USB connector

    VinThis pin can be used to power the board with a regulated 5V source. If the power is fed through this pin, the USB power source is disconnected. This is the only way you can supply 5v (range is 5V to maximum 6V) to the board not using USB. This pin is an INPUT.

    5VThis pin outputs 5V from the the board when powered from the USB connector or from the VIN pin of the board. It is unregulated and the voltage is taken directly from the inputs. 

    VCCThis pin outputs 3.3V through the on-board voltage regulator. This voltage is 3.3V if USB or VIN is used and equal to the series of the two batteries when they are used

    LED ONThis LED is connected to the 5V input from either USB or VIN. It is not connected to the battery power. This means that it lits up when power is from USB or VIN, but stays off when the board is running on battery power. This maximizes the usage of the energy stored in the battery. It is therefore normal to have the board properly running on battery power without the LED ON being lit.

    Onboard LEDOn MKR FOX 1200 the onboard LED is connected to D6 and not D13 as on the other boards. Blink example or other sketcthes that uses pin 13 for onboard LED may need to be changed to work properly.