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- 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...