Blynk is an easy to use app builder that allows users to add a variety of buttons, sliders, graphical displays and even RGB controllers to their phone. The SparkFun Blynk Board is specially designed to work with the â€˜widgetsâ€™ within the Blynk mobile app to create your next IoT project. Monitor local weather conditions, control LEDs from your phone, even send a tweet when itâ€™s time to water your plants! Every Blynk Board comes fully programmed and also includes a Blynk subscription code card (15k Energy at a $10 value), which will be needed to connect the Blynk Board to your Blynk account, connect to a Wi-Fi signal and you are ready to start Blynking! Youâ€™ll be controlling the Blynk Board from half way around the world in no time.
On board every Blynk Board is the economic yet powerful ESP8266 framework that will allow you to connect to most 2.4GHz WiFi networks, that are either open (no password) or protected with WPA, WPA-2, or WEP authentication. The Blynk Board interfaces with the outside world using input/ouput (I/O) â€œpinsâ€ that can either control real-world objects, like motors or LEDs, or read in values from sensors (like light or position). Each of the Blynk Boardâ€™s pins are accessible via the large, metal-encircled holes on the edge of the board. These large holes are designed to interface with alligator clip cables â€“ a staple interface cable for beginner and advanced electrical engineer alike. During setup, the RGB LED on the Blynk Board will be your window into its soul. The board uses this multi-colored LED to indicate all sorts of status modes including how to identify which board is yours.
Blynk is a digital dashboard for your iOS or Android device that allows you to easily build graphical interfaces by dragging and dropping widgets to control for your newest IoT projects! With the Blynk app you will be able to control the Blynk board or any other compatible hardware remotely by displaying sensor data, analyzing your surroundings, activating a function of your project and much more.
Are you just getting started with IoT or electronics? Our [IoT Starter Kit](https://www.sparkfun.com/products/13865) includes all the parts to complete the [fourteen starting IoT projects](https://learn.sparkfun.com/tutorials/blynk-board-project-guide).
**Note:** The Blynk app is compatible with iDevices running iOS 7.0+, and Androidâ€™s running any version above or equal to 4.0.