Hi to everyone,
I’m working on developing an Air Purification Device, and it is supposed to give feedback about the air quality with a sensor to the user’s phone via BLE (Bluetooth Low Energy) from the ESP32. The problem is that if the user stops having the application open, the communication is cut off and the alert notification does not arrive. So, I would like to know if the user can block his phone and even so he can still receive the information from the ESP32 via BLE, because I can not use WiFi.
Thank you all.