Blynk appears to be a fairly put-together library for not only hooking up any Arduino or esp8266 to a phone through WiFi, but also through the net if desired. Install the app onto your iPhone or ...

From within the application, you can then visualize that data in a number of ways using the simple drag-and-drop interface. We’ve seen Blynk and ESP8266 used to control everything from mood ...

Android/iOS: If you want to control a Raspberry Pi or Arduino connected device from your phone, you’d usually need to know at least some programming.