First of all, I'm having a very hard time understanding Bluetooth because all Arduino oriented guides and tutorial are pretty basic.
I have a clone HM-10 board wired to an Arduino. I've read it's "backwards compatible", but maybe I got it wrong, because I want to connect it to an ESP32 which works under Bluetooth Serial. I have a program coded in the ESP32 that received serial commands from an Android App and controlled some motors and lights. And now I want to send the commands from the Arduino.
I can use my phone to scan and pair with my ESP32, but I have no clue on how to code the Arduino to do exactly that switch.
Do I need a different module? Is it only possible through BLE? If so, the ESP should be a master, a server? Can anyone point me in the right direction?