Arduino type swap possible?

Using Arduino Project Guidance
1

So, i have designed a pcb with a boards mounted Arduino pro mini on it.

I reaoised in my haste i bought Arduino Nano's. Luckily i havent had the pcb made yet and wondered if there was any pertormance or programming difference between a pro mini and nano?

Ignore piniut as i can adjust that. Just code and performance.

Thanks

2

These are nearly identical.

The NANO has an onboard USB chip so you will not need the external FTDI that the ProMini needs.

The NANO might draw a bit more current than the ProMini.

Suggest you buy some ProMinis to use (don’t finalize your PCB until you receive them) and keep the NANOs for later.

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The specs are here:

You can see that they're both ATmega328P.

4

Sounds like really good advice, and make sure the pin pattern matches the PCB layout.

5

I have build several boards where I plug in the Nano. Works nicely and with the USB setup debugging is much easier. I also put a SMPS on the board to generate the needed 5V. For me the Nano is about one of the most inexpensive Arduino's I can purchase.

1 Like
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Thanks for all the advice chaps. Ill get some pro mini aswell but investigate a dual footprint or similar.

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BTW

I have 4 different ProMinis, each has a slightly different foot print.

Settle on one supplier.

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There are 3V3 and 5V ProMini too?

Tom.. :grinning: :+1: :coffee: :australia:

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Correction, I have 4 5 different ProMinis (including the one 3V3), each has a slightly different foot print.

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Or design your board so you could use either

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