I2C connector pinout

From BitWizard WIKI
Revision as of 14:56, 6 April 2012 by Rew (talk | contribs) (Created page with " For the interconnect between I2C masters and the I2C expansion boards BitWizard uses a 4-pin I2C cable. {| border=1 ! pin !! function !! remark |- | 1 || GND || Power Grou...")

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search

For the interconnect between I2C masters and the I2C expansion boards BitWizard uses a 4-pin I2C cable.


pin function remark
1 GND Power Ground
2 SDA Serial I2C Data
3 SCK Serial I2C Clock
4 VCC Power 5V.

The connector is laid out as follows:


Connecting the bitwizard boards to an Arduino

pin function arduino pin
1 GND GND
2 SDA A4 (Analog input 4)
3 SCK A5 (analog input 5)
4 VCC VCC

You could use other pins, but then you have to make a software I2C implementation. This is not too difficult, but might be neccesary if something else is already on the I2C pins.