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How to regulate 5V 3A to 3.3V for ESP32 and level up 3.3V …
The most careful designs also separate general 3.3V for microcontrollers etc from 3.3V to the RF parts specifically. In case of ESP32, it appears to be a SoC mixing MCU and …
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Resistors, what do I need for my 3V LEDS? [duplicate]
That leaves 3V for the resistor....3V/0.015 gives 200 ohms. Use a resistor near this value - a smaller resistor gives more current, and those two LEDS will be a bit brighter.
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