MPC4631 digipot

[emosms]

Hi, first time trying to do something.

Board - arduino nano.
I got few pieces of this digipot:

mcp4631

The units I got are dual 50k volatile pots, I2C interface

Trying to read the specs, but I miss one thing: Could I control the two pots independantly?

As far as I understand, the device is controled via the HVC/AO

Depending on A1 and A2 being connected to gnd or vcc, I get different addres for the device.

Is that an address for the whole device, or I can control which pot inside the device I am currently controlling?

Regards

[emosms]

I managed to control seporately the pots inside the device,but just one by one.

• digipot pinout: http://s18.postimg.org/bjb0amwg9/MCP46_X1_digipot_pinout.jpg

Sending data to HVC/A0 controls one of the pots.
Then I plugged the data to the pot's A1 and controlled the other.
I think, if both connected, A0 takes precedence.

This is not usefull for certain applications, where I would like to control the pots inside simultaneously or independently.

The thing I do not understand is where in the I2C wire library functions we set which controler I/O sends the data ?????
Whichever is connected??

Here is the code I used: https://www.arduino.cc/en/Tutorial/DigitalPotentiometer

"wire.write()" sends data to... which pin of the controller????