Arduino MKR GSM 1400

The Arduino MKR GSM 1400 has been designed to offer a practical and cost effective solution for makers seeking to add global GSM connectivity to their projects with minimal previous experience in networking. It is based on the Atmel SAMD21 and a SARAU201 GSM module.

The design includes the ability to power the board using a LiPo battery or external power source rated 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, gobal GSM 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. During cellular transmissions the peak current required by the board will exceed 500mA. This is in excess of what can sourced by a standard USB port, so it is MANDATORY to have a 1500 mAh or higher LiPo battery plugged all the time, the current provided by the USB port will be supplmented by the battery. When powering the board using Vin, a 5V power supply that can supply atleast 2A is required.

Warning: Unlike most Arduino & Genuino boards, the MKR GSM 1400 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.

  • Microcontroller: SAMD21 Cortex-M0+ 32-bit low-power ARM MCU
  • Board Power Supply (USB/VIN): 5V
  • Circuit Operating Voltage: 3.3V
  • Digital I/O Pins: 8
  • PWM Pins: 12
  • Flash Memory: 256 KB
  • SRAM: 32 KB
  • Full-speed USB device and embedded host
  • Arduino Part #: ABX00018


Looking for answers to technical questions?

We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.

  • Member #57306 / about 2 years ago / 1

    Yes!... but which GSM network(s?) is this capable of using?

    Please recommend suitable suppliers of "data only" SIM cards.

    At present far too high a cost to buy on such limited information.

    When was this introduced?

    A link to this page from your discontinued products which addressed similar wants might drive up your sales!

    • santaimpersonator / about 2 years ago * / 1

      Hi there, it sounds like you are looking for technical assistance. Please use the link in the banner above, to get started with posting a topic in our forums. Our technical support team will do their best to assist you.

      That being said, to answer some of your questions:

      1. As listed in the datasheet (see Documents tab):

      Carrier frequency: 433/868/915 MHz

      Working region: Global

      1. The manufacturer doesn't list any specific cellular network providers. However, they do offer their own SIM card (note that it only sends data to their cloud platform).

      I personally use on my data projects.

      1. A google search lists the date for the Getting started guide for this product was written in Nov 2019. There also appears to be a link in the datasheet for the distributor, if you are interested in the product life cycle.
      2. Most of our products are retired because they are EOL (end of life) or a major component is EOL.

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