This program is made with ESP-IDF V4.4.2, His goal is to measure the time the ESP take to calculate those formula. Used to calculate effective and mean value of a AC or a rectified Sin, in order to give VRMS values.

NOTA BENE : The watchdog has been desactivated (component config -> esp system config -> initalize task watchdog timer on startup (to disable))

• powf : increase time by 1.7 (2520 instead of 1495) use simple multiplication for same result
• pow : increase time by 3.19 (4769 instead of 1495) use simple multiplication for same result
• Increasing the CPU freqency by X divide the calculation time by X (as expected)

ESP32-S2, CPU clock : 80MHz
Sampling : 1000 Hz
Sampling Number : 1024
Number of try : 5000 times

$V_{Effective} = \frac{V_{Max}}{\sqrt{2}}$

$V_{Mean} = 0$

$V_{Effective} = \frac{V_{Max}}{2}$

$V_{Mean} = \frac{V_{Max}}{\pi}$

$V_{Effective} = \frac{V_{Max} \times \sqrt{2}}{2}$

$V_{Mean} = \frac{V_{Max} \times 2}{\pi}$

Caracteristics : f = 50Hz, A = 20

TODO

Caracteristics : f = 50Hz, A = 20

TODO

Caracteristics : f = 50Hz, A = 20

TODO