How to send and receive json data over ble?

[Vishnu Vijayan]

Hi,

I am trying to develop a gateway using nRF52840dk using nRF connect  SDKv2.0.0. 

In order to test with central, I already set up a peripheral on nRF52832dk. It is possible to establish connection between them.

Now, I need to send and receive data in JSON format.

How can I send and receive JSON data over BLE? Also is it possible to Send data > 20 bytes? If yes, can you give me what will be the configurations required?

Thanks in Advance.

[Simon]

How can I send and receive JSON data over BLE?

Just simply send the json string as bytes, then when you receive it on the other end you decode the bytes into a string and read the json data.

Also is it possible to Send data > 20 bytes? If yes, can you give me what will be the configurations required?

Take a look at the following sample to see how to go about this: https://developer.nordicsemi.com/nRF_Connect_SDK/doc/2.0.0/nrf/samples/bluetooth/throughput/README.html#bluetooth-throughput 

Best regards,

Simon

[Dhruv Busa]

change the mtu value it allow to send  more then 20 bytes of data