Do you have examples explaining how to read data saved in the Open Log SD card module and send it to ESP32 via TX and RX pins which I could read using the Bluetooth module on my phone?
Unfortunately, we don’t have any tutorial using Open Log.
You can take a look at this tutorial by Sparkfun, it’s a very god one: https://learn.sparkfun.com/tutorials/openlog-hookup-guide/all
To send data via Serial from the Arduino to the ESP32, you just need to use the Serial library as shown here: https://www.arduino.cc/reference/en/language/functions/communication/serial/write?from=Reference.SerialWrite
You can also use the serial library to receive data on the ESP32 side like in this example: https://www.arduino.cc/reference/en/language/functions/communication/serial/read
I hope this helps.