Chapter 6 Buffering

Hi Maik,
I am newbie and enjoying the tutorials.
I am not sure how the 16 (BUFFER_SIZE) readings are taken from the following lines of code (20, 21) without a loop.

bufferaxis] = analogRead(PINS[axis]);
buffer_pos[axis] = (buffer_pos[axis] + 1) % BUFFER_SIZE;

I will greatly appreciate your comments.

Hi Robert!

I guess you’re talking about the Buffering.ino sketch?

Actually, there is a loop, but it’s implicit, because the Arduino calls the loop() function in an endless loop.

In the loop() function we call get_x(), get_y(), and get_z(), so get_axis() gets called three times whenever the Arduino calls loop().

Cheers,
Maik