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The Sparkfun Blynk board is an evaluation board for a low cost Wi-Fi chip ESP8266 that can connect to Wi-Fi networks that are either open or protected with WPA, WPA-2, or WEP authentication. This board has a mobile app that enables users to observe weather conditions, control LEDs from a phone, send tweets when it’s time to water the plants, etc. The mobile app is an easy to use app builder that allows users to add buttons, sliders, graphical displays and even RGB controllers to their phone. The Blynk board interfaces with the outside world using GPIO pins that can either control real-world objects, like motors or LEDs, or read in values from sensors. It is ideal to be used in IoT projects. Read more