AT&T Cellular IoT Starter Kit

Avnet’s AT&T Cellular IoT Starter Kit enables designers to easily develop and prototype cellular connected IoT devices utilizing AT&T’s 4G LTE network. The kit includes all the elements required to collect sensor data, connect to the AT&T network, and utilize various cloud services for the management, storage, and analytics of a connected IoT device.

The Starter Kit features a two board solution comprised of a microcontroller-based carrier board and a pluggable, cellular connectivity daughter card. NXP’s Freedom FRDM-K64F microcontroller carrier board acts as the main host processor, providing an Arduino™ compatible R3 expansion slot. The Avnet created 4G LTE cellular shield plugs into the Arduino R3 slot, forming a small 3.25” x 2” x 1” two board “sandwich”.

Application development is supported by AT&T’s M2X Data Services and Flow Designer, which provides a scalable, reliable and highly secure environment for IoT-focused solutions. Additional cloud services from industry partners are also available. The hardware platform is enabled for ARM® mbed™, allowing for development in a cloud-based environment, or in a locally supported environment through either the Open Source SDA or JTAG connection to the baseboard.

IMPORTANT: DO NOT USE THE K64F WITH WINDOWS™ 8/10 WITH STORAGE SERVICES ENABLED!  DISABLE WINDOWS™ STORAGE SERVICES ON WINDOWS™ 8/10 BEFORE PLUGGING IN K64F TO A PC!!!

Explanation: A bug in older versions of the ARM™ bootloader firmware can cause the K64F board to have corrupted flash and become unusable until a JTAG device is used to reprogram.  Clearer instructions are being constructed and will be made available at a future date!

Once NXP™ version 0243 (or later) K64F firmwares (BOTH bootloader and DAPLink must be upgraded) are programmed into the K64F, it should be safe to use Windows™ 8/10 with or without Storage Spaces enabled.

Workarounds:  1) Do not use Windows™ 8/10 with firmware older than 0243.  2) Disable Windows™ Storage Services before plugging in the K64F board.  3) Upgrade the firmware to the latest on the NXP™ website with Windows™ 7 before using Windows™ 8/10 if you are not able or want to disable windows storage services.

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*Additional documentation, tutorials and examples for the NXP K64F Freedom board can be found on the NXP web site.