ESP32: Store and Send data via BLE frequently

[RinmoDo]

I'm developing a sensor based on the ESP32-DevKit board where I sense vibration from an accelerometer. The application/sensor goal is to store the accelerometer data for 20s and then send all the data through BLE.

I'm currently using the ESP32 ADC (12 bit) for a fast sampling rate (10-100KHz) to get an accurate signal. The next step is to store this signal, but it will take as size almost 2MB, so I don't know if I can store it in the ESP32 and send it later via BLE (packet by packet), therefore a lot of tasks will end up degrading the process time and Energy.

The main points are :

• Fast sampling rate / accurate signal.

• Sending data to phone with the lowest energy possible.

• using ESP32-S2 to Store 2MB data and resend it to Phone app.

Is there any possibility of doing what I want to?

https://stackoverflow.com/q/66934907/15545325