Trevor Lee

My suggestions: * use OTG (i.e. Serial) * or use WiFi * or use Bluetooth * BLE is your last choice Another thing is ... declare the app to be...

Sorry. Obviously, there is no formal step-by-step tutorial on how to use the library. To get started, please read the README of the project -- https://github.com/trevorwslee/Arduino-DumbDisplay?tab=readme-ov-file#readme. Reference: https://trevorwslee.github.io/ArduinoDumbDisplay/html/

If I enable non-blocking mode, I will get error like: [ERROR] get_available Accept connection failed right after the sketch started looping in loop() and here is the sketch I used...

An interesting idea. Will need further investigation on the feasibility.