Maybe use a digital signal from the Arduino Mega on the RAMPS board to keep the ESP module disabled for a while during start up, perhaps? The video after the break gives a short overview of the hack.

Hi, I'm Bill. I'm a software developer with a passion for making and electronics. I do a lot of things and here is where I document my learning in order to be able to inspire other people to make ...

If you’re looking to drive an LCD screen with an ESP8266 and Arduino, check this out for sure. As a testbed, [Jasper] ported his Tick Tock Timer project over to the new library.