ESP32 BLE or Bluetooth Classic ?

[sajeel34]

Hello,

I am making a project in which I have to use ESP32 module. I am sending color string from a mobile application at specific rate. Such that the mobile appln is sending "#34AB00$45;" after every 25 mseconds. This is a short burst of data which my ESP32 will receive and then interpret and apply the color command to my Neopixel leds.

The color string will be changing all the time. for example: (The data string look like as:)
first string > #34AB00$45; delay 25ms
second string > #10001A$12; delay 25ms
third string > #00FF00$95; delay 25ms
...
...
...
tenth string > #33000F$100;

BLE is used where small amount of transmission is required. BLE or Classic BT ?? which one is suitable for implementing this task?

[gunar.kroeger]

Both are perfectly suitable. BLE shall give you better power efficiency.
Classic SPP is easier to implement/understand.

But your application looks really close to a BLE example.