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by MicroLove#22
Wed Jun 01, 2022 9:43 am
Forum: Hardware
Topic: Super-Simple Interface?
Replies: 1
Views: 1395

Super-Simple Interface?

Hello, I have an Pulse-Source, which switches between 0 and 5 V. I want to connect it to an ESP32 GPIO, configured as digial Input. I know, the input Voltage should not exeed 3.3 V. I ask, whether an series- resistor between 5V-Source and ESP32 input can reduce the current and voltage to a level, wh...