• State Verified Answer
  • Replies 9 replies
  • Subscribers 73 subscribers
  • Views 8630 views
  • Users 0 members are here
Attachments (0)
Nordic Case Info
  • Case ID: 109799
Options
This post is older than 2 years and might not be relevant anymore
More Info: Consider searching for newer posts

sending data over ble

sowmya

Hello,

I have developed a simple characteristic to send data over ble using the ble_nus service. I created a service and added a characteristic to send. Then sending the counter data (eg: 1 to 100 decimal value), one byte per second and I am testing using MCP.

It is able to connect and bond and also I am able to see the characteristic which I have added. But I am not able to see the data.

Do I have to configure any to send data over ble?

Regards,

Sowmya

Parents
  • 0

    If the characteristic is properly configured as readable, then you can poll for the data (read it).

    If you want push-style data updates (an update is sent every time there's new data), the characteristic will need to support either indications or notifications as well as have a client characteristic configuration descriptor (CCCD) to allow the client to opt-in to receive the updates. I'm guessing that you haven't used the MCP to enable the notifications/indications on the characteristic.

    See the other posts on the CCCD, indications or notifications. There are also several examples in the SDK.

  • 0 in reply to Bill Siever

    Hello ,

    1. Is it possible to send more than 20 bytes in single packet?
    2. Is it not possible to send larger data(more than 20 bytes) in notification characteristic?

    Regards, Sowmya

Reply Children
No Data
Related
Terms of service