Hello, and thank you so much for reading this question.
I am a newbie to ESP32, I have an ESP32 working together with the SCT-013, I succeeded in measuring the current and sending it to the database.
However, the problem I am facing is how do I power the ESP32 from 220-240VAC and make it work continuously for a long time, such as 1 year? Please help me to solve this problem, thank you!
Hello myluck_18
Welcome to the worldbest Arduino forum ever.
Try to use a power supply for mobil phones simply.
Have a nice day and enjoy coding in C++.
Thanks for your reply @paulpaulson ! Also I have one more question.
If I use 5v adapter will need the built-in regulator on esp32 to convert to 3.3v right? So if I use it for a long time, will the regulator overheat and damage?
Hello myluck_18
Keep in mind the ESP32 isn´t a power supply unit.
Check the power consumption of the hardware that is additionally connected to the ESP32.
Thank you so much!
As far as I understand esp32 works fine with 5V voltage and voltage regulator to 3.3V is to supply other hardware devices connected to esp32. So with a 5V phone charger, ESP32 can work continuously for a long time without any problems, is my thinking correct? Your explanation above helped me a lot!
I´m running a BME280 and ESP32 as weather station connected via BT.
Nope. The ESP32 microcontroller operates at 3.3 volts.
I doubt that someone who asks this would be using a bare ESP32 module.
Yes, you can power an ESP32 development board with a 5volt cellphone charger, connected to the USB socket, for a very long time.
Leo..
I agree. However, I assumed that clarification was needed because it also matters when connecting to other peripherals because some operate at 3.3 volts and others at 5 volts.
You are welcome.
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