I2C support for microcontroller

[vineetn]

I was wondering if the standalone nRF51822 microcontroller has support for i2c. If so which pins are supported. There doesn't seem to be any reference on i2c for the board. 

[Goose]

I'm working with the NRF52, but it should apply for this too:

You can use any digital pin for I2C.

I2C is referred to as TWI in Nordic documentation. Look a the TWI example in the SDK

[vineetn]

sorry, I apologize if I sound naïve. I just started considering using this microcontroller for a school project. Is this true for the mbed sdk as well? 

[Goose]

No worries

I don't know about mbed, but I assume if changing the pins from C are possible it should also work for mbed?

[vineetn]

Thank you for the answer. Btw, what IDE do you recommend for Nordic SDK firmware dev

[Goose]

I think I've seen some people recommend Segger embedded studio.

I use my own setup:

VScode+cortex debug

That way I can use the armgcc Makefile from the SDK.

You could maybe start by looking at all the configurations they have for building included with each SDK example in a folder named after the board for example the PCA10056 folder, it will contain different folders for the different supported IDE's. (In my case I use the armgcc folder)

[Nguyen Hoan Hoang]

I prefer Eclipse GCC.  It is full feature C/C++ and highly flexible.  Unlike Segger Studio which stripped out C++ supports. It's also a stripped down version of CrossWorks. Only works with Jlink not thing else.   

Best library for I2C is this https://github.com/IOsonata/IOsonata.  nRF5x port is located here https://github.com/IOsonata/IOsonata/tree/master/ARM/Nordic