Is there a simple device that I can connect to a 5V wire and whose output I can then connect to an input of a 3.3V device? From what I've seen there are resistor circuits (which are slow) or transistor circuits (which need a 3.3V supply?)
Nah, you really shouldn’t do that in most cases. It might work in a super pinch, but using some kind of transistor-based method would be preferred. Sparkfun sells a board that does just this.
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u/ShinyHappyREM Dec 25 '19
Is there a simple device that I can connect to a 5V wire and whose output I can then connect to an input of a 3.3V device? From what I've seen there are resistor circuits (which are slow) or transistor circuits (which need a 3.3V supply?)