Hi
i like to connect raspberry pi with arduino so that Rpi can send control commands o arduino. i know they can be connected using i2c interface.i got plenty of instuction on internet. as both operate on different logic voltage level so i brought a bi directional 3.3v to 5v logic level converter. however in some discussion i found that there is a need for pull up registor in i2c connection.
the spec for the below brought component says that it supports i2c , however i dont know whether it has pull up resistor or i need to add it separately? can you confirm whether it will be safe to connect using the below logic level converter?
http://www.rhydolabz.com/index.php?main_page=product_info&products_id=1045
or i need to buy below one for now. also in later phase i want to introduce a MPU6050 with arduino as i2c can handle 2 devices as slave (Rpi and mpu6050).
http://store.explorelabs.com/index.php?main_page=product_info&cPath=12&products_id=154
diagram is like:
