I want to save sensor data to sd card then download to phone with ble.

[bariserbay]

Hi,

I'm trying to save sensor data to sd card on low power mode. When i connect to bluetooth mobile app can pull all data from sd card.

How can make this architecture?

Thanks..

[awneil]

bariserbay said:

How can make this architecture?

Standard development approach:

1. Implement reading the sensor data.
2. Implement SD Card file system (eg, FatFs)
3. Implement BLE data transfer (eg, Nordic UART Service, "NUS").

Each of these is entirely independent of the others, and there are examples covering each one.

The final step is to bring them all together.