Arduino Nano vs. Arduino Micro

My Project use an Arduino Nano. D0 for interuptable I/O (onewire slave) and D2 and D3 for I2C (Master).

I also have an Arduino Micro but I am confused by the Pinout of the two devises.

Can I use the same prins (D0, D2 and D3) on the Micro?

Thanks for your advice.

O boy. I think you have a clone/fake/cheap Nano from Ebay that is not a Nano.

The pins for I2C differ : https://www.arduino.cc/en/Reference/Wire However, if you already have D2 and D3 for I2C, that means you already have the ATmega32U4 microcontroller, the same microcontroller as in the Micro.

For the Micro, you can use D2 and D3 for I2C, and D0 can be an interrupt, so D0 will be fine.

What is a OneWire slave that uses an interrupt ?

Koepel: O boy. I think you have a clone/fake/cheap Nano from Ebay that is not a Nano.

The pins for I2C differ : https://www.arduino.cc/en/Reference/Wire

For the Micro, you can use D2 and D3 for I2C,

why does every reference use A4 and A5 for I2C?

A4 & A5 are correct for 168 and 328 chips.

I believe that the MINI is a drop in replacement for the Basic Stamp. the premier platform of the day when the Arduino came to be.

the UNO, NANO and Mini, all use the same basic Atmel 328

the MINI pins for I2c are often NOT in the normal DIP rows, but either located off-center behind two pins in the middle of the board, or brought out to the end of the board.

AFAIK, all the UNO and UNO clones use the exact same pintout for the basic pins. some add a second location for ease of use.

the Nano and Mini use a SMT chip, not the DIP version and there are 2 additional analog pins available. the NANO does a pretty good job mimicking the general pin sequence of the UNO making shrinkafying a bit easier. the NANO offers A6 and A7 as standard pins.

the clones take a horrible amount of leeway on the MINI in regards pin locations.