I am using a Nextion display with a control board. My control board has a USB connector, and I use a thumb drive to update the code on the control board. I would also like to update the flash on the Nextion display through the serial connection similar to how it’s done in the Nextion Editor. I can see a somewhat complex protocol with my logic analyzer, but I don’t know the specifics of it. Does anyone have the specification on the serial update protocol?
Thanks,
-Bob
Hi @BobboNewco,
Which model of Nextion display do you have?
You want to do something like in this video https://www.youtube.com/watch?v=6tH-azsptEo ?
@igor_X:
I am using the NX4024T032, NX3224T028, NX3224K028, and the NX8048P070.
I know I can update with an SD card as in the video, but I would prefer to update it over serial (UART). I want to send the same commands and data from my control board like the editor does, but I’m not sure of what’s involved. I can see the communication with my protocol analyzer, but I don’t know what data is static (commands) and what is dynamic (data length, CRC, etc.)
Thanks,
-Bob
