I set up a sketch to test the hz of the main loop with millis() vs micros(). With millis() hz was giving a reading between 288,935 and 289,232 but with micros is was reading 174,730 which is substantially slower. Is is just because the arduino has to deal with bigger numbers or because it has to up…

The millis() function only reads the variables already accumulated by the Timer0 overflow ISR and just returns their values. The micros() function reads the current counter value of Timer0 and calculates the elapsed time, because return value need even higher time resolution. Therefore, the execut…

Why is micros() so much slower than millis()?

Projects Programming

chrisknightley August 18, 2021, 11:54pm 6

@J-M-L Sorry, we got same posts, I leave that.

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Why is micros() so much slower than millis()?

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