Besides this the button present on the watch can control another ESP8266 Relay module directly through an IoT cloud service called Blynk.” More details and full instructions on how to build your ...

We’ve covered the Sonoff a few times–a very inexpensive box with an ESP8266 ... the stock firmware and control it like all the normal people do. If you plan to use Blynk, we’ve covered ...

and sometimes you just want to control a device from your phone with minimal work. Blynk appears to be a fairly put-together library for not only hooking up any Arduino or esp8266 to a phone ...