Spark Core-OpenSource Wi-Fi Board

A tiny Wi-Fi development board that makes it easy to create internet-connected hardware. The Core is all you need to get started; power it over USB and in minutes you’ll be controlling LEDs, switches and motors and collecting data from sensors over the internet!


The Spark Core is an Arduino-compatible, Wi-Fi enabled, cloud-powered development platform that makes creating internet-connected hardware a breeze.

This little board packs a punch: with a 72 MHz ARM Cortex M3, the best Wi-Fi module on the market, wireless programming, and lots of pin outs and peripherals, there’s nothing you can’t build with the Core.


We love Arduino, and we love writing Arduino code. In fact, we love it so much that we couldn’t imagine the Spark Core without it. That’s why we’ve designed the Core to run Wiring, the same simple code as the entire Arduino platform. If you’re like us, the last thing you want to do is learn a new programming language or change your existing sketches.






Set-up steps:

1. Enter your network name and password into the Spark App and press OK.

That was it. Seriously. You’re connected.

The Spark Core makes first-time configuration of your devices a breeze for both creators and users. The Core includes a brand spankin’ new Wi-Fi module: the CC3000 from Texas Instruments. It features their unique setup process called Smart Config that allows makers and developers to bring their creations online in seconds.



The Core is already Wi-Fi connected, so we’ve decided to do away with wires altogether.* You can program your new software in our web development environment or in your favorite text editor, and with a single click, Spark Flash delivers updated firmware to your project over the web.

Spark Flash means that your projects stay in their enclosures, out in the field, and in the hands and homes of users, where they belong. It also means that your creations can be easily changed, updated, and improved over time, without worrying about USB ports and programmer pins.

* Of course, you can still program the Core over USB or with a JTAG programmer, but where’s the fun in that?


We’ve benefitted tremendously from the open source community, and we’re dedicated to giving back. The Core is a totally open source hardware product. All of our hardware design files (schematic, board design, and bill of materials) and firmware will be open source. The components we’re using are available from any major distributor. We’re also sticking with open standards (HTTP, TCP, TLS/SSL, Protocol Buffers) for all of our communications. We want to make it as easy as possible to extend and improve upon the foundation we’ve built.




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