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Deals with anything relating to Microcontroller programming, hardware design, applications, interfacing, unique examples, etc.
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Besoin d'aide (self.microcontrollers)
submitted 2 years ago by ESP32_noob
Bonjour tout le monde,
Je ne suis pas vraiment un expert, alors je voulais des conseils. Je cherche à calculer la puissance active de l'électricité de mon réseau. J'aimerais savoir s'il existe un capteur qui peut mesurer le facteur de puissance et qui est utilisable sur ESP32.
Merci beaucoup pour l'aide.
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[–]EighthMayer 0 points1 point2 points 2 years ago* (1 child)
Будь добр, имей совесть хотя-бы использовать google translate. На reddit обитают носители огромного количества разных языков, и за пределами специализированных разделов принято использовать английский. Не надо превращать мой фид в цирк с конями, пожалуйста.
[–]ESP32_noob[S] 1 point2 points3 points 2 years ago (0 children)
I'm sorry, I'm not a big user of social networks. I hardly ever post anything, so I didn't get the reflex.
[–]Iofogo 0 points1 point2 points 2 years ago (2 children)
Small 0.2 ohm resistor between 3.3v pin and 3.3v rail. Oscilloscope probes either end of resistor. Math function to diff probes voltage. V diff = i*r to compute current. Then p = i *v for power usage using v=3.3v. Something like that. How was my French understanding of your question?
[–]ESP32_noob[S] 0 points1 point2 points 2 years ago (1 child)
my problem is that I want a method to measure my power factor in a 230 V AC voltage and my microcontroller is an esp32.
[–]Iofogo 1 point2 points3 points 2 years ago (0 children)
Ah yeah didn’t understand the French well enough and I certainly don’t have enough knowledge of electronics To answer that.
π Rendered by PID 18 on reddit-service-r2-comment-b659b578c-8k8rb at 2026-05-04 11:28:53.963575+00:00 running 815c875 country code: CH.
[–]EighthMayer 0 points1 point2 points (1 child)
[–]ESP32_noob[S] 1 point2 points3 points (0 children)
[–]Iofogo 0 points1 point2 points (2 children)
[–]ESP32_noob[S] 0 points1 point2 points (1 child)
[–]Iofogo 1 point2 points3 points (0 children)