Radio Transmitter/Receiver example modification

[techietech]

Hello !!

I want to use Radio transmitter/ receiver example in my custom board which is used for BT remote control battery powered. I have added 10 buttons on my board and define it on example. I want to send UUID code so that it could be distinguished. 

Now after modifying the code I am getting same values on each button pressed. I am not able to find how the transmitter example sending values. Anyone help me out with :

1. Sending UUID with transmitter example.

2. Sending same data on each button press as it was doing with the default example.

3. As it is battery powered, I want to put it on low power mode so that battery could run long last.

I will appreciate any response.

Thanks 

[ovrebekk]

Hi 

If I understand you correctly you want to implement a proprietary radio protocol rather than use a standard one such as Bluetooth?

If you want to do proprietary RF I would recommend you use the nrf_esb library, rather than start with the very simple radio transmitter/receiver examples. 

The esb_ptx and esb_prx examples in the \nRF5_SDK_17.0.2_d674dde\examples\proprietary_rf\ folder show how you can get started using the nrf_esb library. 

Out of the box these examples are not very low power, but I would recommend getting the basic functionality in place before you start to focus on power optimizations. 

Best regards
Torbjørn

[techietech]

I just want to broadcast message from transmitter to receiver for now from my custom board. For that I have changed for 10 buttons and changed the needful thing after checking all the headers files. When I am sending I am getting the output like :

The contents of the package is 251 on each button press. 

ovrebekk said:

but

[ovrebekk]

Hi

Can you attach the code you use for updating the RF payload based on the button presses?

Best regards
Torbjørn

[techietech]

I am using RF radio transmitter / receiver code from nRF5_SDK_17.0.2_d674dde sdk.

[ovrebekk]

Hi 

You stated earlier that you modified the code. Are you able to share these modifications with me so I can have a look at what you have changed?

I can make the case private if you want, in case you don't want to share your code in a public case. 

Best regards
Torbjørn

[techietech]

The changes I have done : 

1. Define for 10 buttons instead of 4 buttons ( as default example) in  pca10040.h

2. Added definitions everywhere as it is defined for 4 buttons in example code.

3. changed GPIOTE_CONFIG_NUM_OF_LOW_POWER_EVENTS 10 in sdk_config.h

4. My gpios for buttons are 6 to 12, 15 to 17. Also changed.

 

Hope this information would be enough. Haven't changed too much in code apart from above. 

Thanks

[ovrebekk]

Hi 

The critical thing is what you write into the packet variable before you call send_packet(). 

Have you used the debugger to check if this variable contains the values you expect when you press the different buttons?

Best regards
Torbjørn