receive data from the peripheral

[marikalp]

hello everybody!

i want to sample an analog signal with  the board and send the 0/1 data with ble to the receiver .

i created my on service with rx and tx like in ble uart example but i don't now how to read the data received from the board . how could i do??

thans a lot for your answer!

marikalp.

[natersoz]

I assume you are using notifications to send your data.

You can use NRF Connect

https://play.google.com/store/apps/details?id=no.nordicsemi.android.mcp&hl=en_US

https://www.nordicsemi.com/Software-and-Tools/Development-Tools/nRF-Connect-for-desktop

to act as a central and receive your data.

There is also LiteBlue

https://itunes.apple.com/us/app/lightblue-explorer/id557428110?mt=8

There are many tools out there. Some for PCs, some for mobile devices.

I think the best tool out there is Cypress CySmart:

http://www.cypress.com/documentation/software-and-drivers/cysmart-bluetooth-le-test-and-debug-tool

It requires a dongle. Also, it is the only thing from Cypress I like.

[marikalp]

i have a dongle too,..anyway isn't that one the problem. i didn't how to create the service to send data from the peripheral to the central ( pc). in my project i have to sample an anlog data and transfer it to pc with the ble.

but thanks a lot for yor answer.

[natersoz]

Your call to ble_nus_data_send() should look something like this:

uint16_t length = sizeof(m_custom_value);

// or perhaps length merely = 1;

uint32_t error_code = err_code = ble_nus_data_send(&m_nus, m_custom_value, &length, m_conn_handle);

Are you able to build the program, load it onto the nrf52, and run it?

[marikalp]

obviusly it was only to semplify ...anyway i tried that code without the ble and was ok...the problem is to undestand in which way put it with the uart and ble in order  to send this message to the receiver and put it to video...

[Jørgen Holmefjord]

What exactly do you mean by this?

marikalp said:

send this message to the receiver and put it to video...

You can receive notifications in nRF Connect for Desktop, or in a C/Python/Node.JS application using pc-ble-driver, but both require a nRF5x board/dongle to work. It is also possible to write applications in later OSes that can interact directly with BLE, but you will have to provide more details on what you are trying to achieve to get help with your issue. 

[marikalp]

so...Thanks a lot for the reply.

I have a dongle and i m trying to establish a comunication among them using nrfconnect. so for me the dongle is central and the sdk is the peripheral..i would  like to anderstand how to send a simple signal and put it to video.

[awneil]

marikalp said:

i would  like to anderstand how to send a simple signal and put it to video.

You have two entirely unrelated tasks there:

1. sending stuff over BLE.
   This is what the Nordic tools & chips do.
   
   
2. "put it to video"
   I have no idea what that means, but the Nordic tools & chips have nothing to do with video.
   But displaying stuff on video should not be affected by how the data was transported.
   Note that BLE is unlikely to be suitable for "live action" video