Hello,
I made an order for a few Nano boards - and mistakenly ordered 3.3 volt units.
I looked around online to read up on these - but didn't find much.
I assume I can plug these into the PC via USB for programming without damaging them?
Are there any issues I need to be aware of - beyond the fact that a 3.3vdc input-pin cannot take a 5 volt signal, and a 3.3 volt output signal is insufficient to drive what a typical 5 volt signal will drive?
Sincere thanks
dw
As USB provides 5.0 volt I assume that any controller having an USB port also have a 3.3 volt converter onboard.
Check the technical documentation for the Nanos!
The clock frequency will be 8MHz instead of 16MHz, so the standard selection of Nano in the IDE will produce incorrect timing for anything based off the clock ( such as millis() and delay() ). Not sure how this is usually handled, you can edit the boards.txt file, but my preference would be to use MiniCore since I always replace the bootloader on a Nano anyway.
Thanks I'll follow up on both suggestions.
Much appreciated!
3.3V Nano? Are you sure about that? Do post a link!
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