I have soldered very simple project on nano v3 includes i2c oled 128x32, pushbutton with certain sequence to change display data and isolated optocoupler used as 220 to 5V adapter (the project should count numbers of connections to 220V). When I power it from USB it works fine. But I need to power…

Works fine powered from USB works bad powered externally

6v6gt November 12, 2021, 8:18pm 10

What is an Optron ? Can you post a link ?

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