Raspberry Pi's I2C bus

Discussions about RaZberry - Z-Wave board for Raspberry computer
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Slegdon
Posts: 1
Joined: 24 Feb 2013 20:05

Raspberry Pi's I2C bus

Post by Slegdon »

Once a RaZberry is fitted, is the Pi's I2C bus still available?

I currently have some I2C based sensors wired to my Pi. I'd like to keep these and integrate more remote sensors/switches using z-wave.

Thanks
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PoltoS
Posts: 7565
Joined: 26 Jan 2011 19:36

RaZberry ocupies only 5x2

Post by PoltoS »

RaZberry ocupies only 5x2 pins (from the outer side) of all pins. All other pins can be used for your own tasks. Please refer to Raspberry Pi h/w specification if other pins can do I2C for you.
jrw
Posts: 3
Joined: 13 Mar 2013 16:20

But Razberry only needs 4 pins, right?

Post by jrw »

In the documentation it is stated that Razberry uses the serial interface.
I would assume that only pins 1 (3V3), 6 (Ground), 8 (TXD) and 10 (RXD) are required.
Or are the LEDs controlled by other ports, or is 5V also connected?
I have a breakout board which I want to use in conjunction with Razberry, so I need to connect those lines which are needed to the razberry and make sure the other software doesn´t use those pins.
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PoltoS
Posts: 7565
Joined: 26 Jan 2011 19:36

The software uses only the

Post by PoltoS »

The software uses only the four pins you mentioned. But the pin header fits in 2x5 pins, where 6 pins are simply not connected and can be used by your apps.
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