Blynk can communicate with the ESP8266 and makes the project relatively simple. The ESP8266 Blynk code is straightforward. You do need to set up the Arduino IDE to build for the ESP8266.

Which is exactly why [Matt Frost] went the non-invasive route. By wiring up an ESP8266 to a cheap aftermarket key fob for his Chevrolet Suburban, he’s now able to wirelessly control the door ...