how to print the data from particular node to uart

[ps_anu]

hi...

i am working on mesh , i have done light switch example , now i want to get some message from node and send to particular node . how to print the same message which is from particular node to uart termite 

please help me out. 

thanks in advance 

[awneil]

Which part are you stuck on:

1. Identifying which node sent a particular message?
2. How to print to the UART?

Each one is entirely independent of the other.

[ps_anu]

i am using two boards , example A and B .. A will sent a message to B And that message has to be read and write on uart using termite 

[Bjørn Kvaale]

It seems the message has been received on the server side. The client also responded with an acknowledged message success, which means that the client has successfully sent the message & the server responded to the client saying it has received the message. Go to line 204 in app_onoff.c & line 96 in main.c for more info.

[ps_anu]

but i didn't receive that character , how to get that char in server side .

see the code below  this how i set the character in client side

    */
 char arr[5] = "code";
 char ara[5] = "set";
 
    switch(button_number)
    {
        case 0:
        case 2:
            set_params.on_off = arr;
            break;

        case 1:
        case 3:
            set_params.on_off = Ara;
            break;
    }

    set_params.tid = tid++;
    transition_params.delay_ms = APP_CONFIG_ONOFF_DELAY_MS;
    transition_params.transition_time_ms = APP_CONFIG_ONOFF_TRANSITION_TIME_MS;
    __LOG(LOG_SRC_APP, LOG_LEVEL_INFO, "Sending msg: ONOFF SET %d\n", set_params.on_off);

check whether it is correct or wrong

[awneil]

What is the type of set_params.on_off ?

arr[] and Ara[] are char arrays, so:

set_params.on_off = arr;

Expects that set_params.on_off is a char pointer.

What does 

 __LOG(LOG_SRC_APP, LOG_LEVEL_INFO, "Sending msg: ONOFF SET %d\n", set_params.on_off);

actually print?

You would usually use %p to print a pointer...

[ps_anu]

hi.... Bjorn kvaale , did you get my question, waiting for your response .

Thanks in advance .

[awneil]

Which particular question?

Did you see my question about the type of set_params.on_off ?

[Bjørn Kvaale]

ps_anu Have you looked at the tips awneil has given. Are you receiving any logging information on the receiving node? You need to make sure that the boolean value is changed everywhere in the code necessary to the correct data type (char pointer as mentioned by @awneil). I have mentioned this in previous comments.

[ps_anu]

yeah i am receiving logging information but i am not getting  the char which i have sent 

[awneil]

So, again, have you checked your data types?

[ps_anu]

how would you say that set_params.on_off is pointer?

[awneil]

ps_anu said:

how would you say that set_params.on_off is pointer

I didn't say that it was - I said that the way you are using it requires that it is!

Aha - I found what I actually said:

https://devzone.nordicsemi.com/f/nordic-q-a/44964/how-to-print-the-data-from-particular-node-to-uart/179179#179179

As I said, arr[] and Ara[] are char arrays, so this assignment:

set_params.on_off = arr;

expects that set_params.on_off is a char pointer.

If set_params.on_off is not, in fact,  a char pointer - then that code is not going to do what you want!

Again, this is standard 'C' programming - nothing specifically to do with Nordic:

The thing on the left-hand side of an assignment has to be of the same type (or a "compatible" type) as the thing on the right-hand side of the assignment.