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-   -   Use Arduino to control BIII (http://www.diyaudio.com/forums/twisted-pear/214217-use-arduino-control-biii.html)

bigpandahk 10th June 2012 02:13 PM

Use Arduino to control BIII
 
I connect the Arduino Mega 2560 to BIII using I2C. I found there is always 3.3V at the SDA & SCL headers at BIII causing the I2C bus always high. Is there anything failure on the BIII or I have set something to make it work?

PS.

With pull high at BIII I2C bus, I think a simple resistor voltage divider for connecting 5V Arduino to 3.3V BIII may not work. I ordered the level converter today and hope it solve the problem.

DQ828 9th August 2012 05:30 AM

Quote:

Originally Posted by bigpandahk (Post 3054568)
I connect the Arduino Mega 2560 to BIII using I2C. I found there is always 3.3V at the SDA & SCL headers at BIII causing the I2C bus always high. Is there anything failure on the BIII or I have set something to make it work?

PS.

With pull high at BIII I2C bus, I think a simple resistor voltage divider for connecting 5V Arduino to 3.3V BIII may not work. I ordered the level converter today and hope it solve the problem.

How did you go with the level converter, I am thinking of doing the same re connecting BIII straight to the Arduino Mega but am a bit reluctant to take the plunge (not brave enough),

bigpandahk 9th August 2012 05:45 AM

Quote:

Originally Posted by DQ828 (Post 3119916)
How did you go with the level converter, I am thinking of doing the same re connecting BIII straight to the Arduino Mega but am a bit reluctant to take the plunge (not brave enough),

I bought a level converter from China (US$1.50), work great.

DQ828 9th August 2012 08:41 AM

Quote:

Originally Posted by bigpandahk (Post 3119926)
I bought a level converter from China (US$1.50), work great.

I'd be very interested to know more about your project, the more info I can get the better :)

bigpandahk 9th August 2012 08:52 AM

I have posted a thread for my project here:

http://www.diyaudio.com/forums/digit...as-sslv-5.html

Just PM me if you want any information.


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