Printf question - Components & Programming

RE: Printf question

sj_h1 — Wed, 16 Jun 2021 16:26:15 +0000

Thanks Bill, would have never figured it out on my own and it actually makes sense.

😉

DroneBot Workshop — Wed, 16 Jun 2021 12:36:04 +0000

The Bald Engineer (awesome website BTW) has a great article on this, I generally refer people to it whenever I get this question:

https://www.baldengineer.com/arduino-f-macro.html

It's very handy when debugging with a lot of Serial.print statements, I used it this week to debug the code for my next video.

😎

Bill

LydaRA — Wed, 16 Jun 2021 03:08:41 +0000

https://forum.arduino.cc/t/what-does-the-f-do-exactly/89384/3

sj_h1 — Wed, 16 Jun 2021 02:37:10 +0000

In all my years of programming I have never seen this:

display.println(F("Hello, world!"));

What the heck is the "F" for? I see it all over this OLED 1306 example code.