Difference between printf and ESP_LOGI?

Question

I just want to know, what is the difference between esp's ESP_LOGx and printf, related to memory use and its other features. And which is the best to use for log ESP_LOGI, printf or any other logging function?

what did you learn yourself? What do you know about those families of functions/macros? — 0___________, Sep 23 '21 at 07:15

score 3 · Accepted Answer · answered Sep 23 '21 at 08:58

3

I think that for most of ad hoc debuging this it is a matter of preference with indication to use printf.

ESP_LOG(I/W/E) are intended to implement "permanent" logging functionality in the code and is also used in the ESP-IDF itself. Then depending on debugging scenario it is possible to globally or locally enable required verbosity levels of information to receive.

answered Sep 23 '21 at 08:58

Fábio Ferreira

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what about the stack size used? Does both uses the same – horsemann07 Sep 23 '21 at 09:17
In stack size ESP_LOGx will take more space. – Fábio Ferreira Sep 23 '21 at 09:38

score 1 · Answer 2 · answered May 02 '22 at 16:52

1

Dont use printf, use ESP_LOGI/E/W. There are several advantages, for example color coded messages.

answered May 02 '22 at 16:52

ambassallo

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Difference between printf and ESP_LOGI?

2 Answers2