I got my 7" Nextion display and finally had time to play with it. I downloaded the “compbutton.ino” example program from the ITEADLIB_NEXTION library. It compiled OK and I was able to flash it to my Photon OK. The Photon is pulsing cyan. But then nothing happens. The Nextion display remains stuck on its preloaded demo splash screen. If I do the “slide to unlock” on the display, it moves to the date screen, but that’s it. If I reflash the Photon, it goes back to the initial lock screen.
And yes I’m sure I have RX connected to TX and vice-versa. And I’m sending the code to the right target. Is there some obscure magic incantation I’ve overlooked? How do I figure out what’s wrong here?
Mystified…???