Tell us about yourself!
the NEXTION DISPLAY is ***NOT*** cheap! LOL!
I've done up to STEP 5. I was able to set the mode, the baud rate (using alternate command you suggest with "UART..."), and connected with my wifi..However, on step 6, nothing is ECHOED back. I checked the connections, the pins, the ESP 8266 lib, the SoftwareSerial lib, etc..Any ideas why ?
which type of LDR did you use ? GL5506...GL5539 ?
there are several TYPES of photoresistor, from GL5506 to GL5539. Which one did you use? and which one is the best?