Disable all printf at a time

RE: Disable all printf at a time

Vidar Berg — Thu, 26 Feb 2026 06:50:23 GMT

Another option can be to wrap the printf calls with a macro like the NRF_LOG_* macros.

#ifdef ENABLE_PRINTF
    #define DEBUG_PRINTF(...) printf(__VA_ARGS__)
#else
    #define DEBUG_PRINTF(...)
#endif

Then replace all the printf() calls with DEBUG_PRINTF() using search&replace in your code editor.

RE: Disable all printf at a time

araucaria — Wed, 25 Feb 2026 19:20:02 GMT

I have the same question: How can I disable all printf() output easily without having to comment out each one of over 300 lines?

RE: Disable all printf at a time

AP1 — Wed, 27 Mar 2024 11:27:54 GMT

Hi thanks for reply actually i have more print statements so i wanted to disable print all at a time is there any other method

RE: Disable all printf at a time

Vidar Berg — Tue, 26 Mar 2024 10:33:30 GMT

The simplest solution is likely to make your 'printf' calls conditional.

E.g.,

#define PRINTF_ENABLED 1 

#if PRINTF_ENABLED
    printf("hello world");
#endif // PRINTF_ENABLED

RE: Disable all printf at a time

AP1 — Tue, 26 Mar 2024 06:47:31 GMT

i dont want to print this statement on console

RE: Disable all printf at a time

Vidar Berg — Tue, 26 Mar 2024 06:46:42 GMT

What do you mean by "disable printf all at a time"?

RE: Disable all printf at a time

AP1 — Tue, 26 Mar 2024 06:45:05 GMT

Hi i am using nrf52840 app ble_central_app_uart latest ver. for this one i need to disable printf all at a time

RE: Disable all printf at a time

Vidar Berg — Tue, 26 Mar 2024 06:42:36 GMT

Hi,

Sorry, but I'm not sure I understand your question. Could you please try to rephrase it? Also, could you let me know which SDK your project is based on?

Best regards,

Vidar