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MD25 Motor Controller


#1

Hello,

I am trying to use the MD25 motor controller on FEZ Domino with i2c.

I use the code from http://code.tinyclr.com/project/315/motor-driver-dm22-i2c/ which seems to be ok. The motor controller have the adress 0xB0 and 0x58 corresponds to this adress being right shifted to a 7-bit adress.

However, I can’t get this to work at all. I get no response from the controller what so ever. Can it be a voltage issue? I just connected the motor controllers SDA and SCL lines to Di2 and Di3 on my Domino and connected the grounds. Do I need any pull-up resistors?

Niklas


#2

Hi,

You have power to MD25?

You removed all the jumpers to select I2C mode?

You have SCL\SDA connect right way around? :slight_smile:


#3

Yes, I am using a battery eliminator to supply 12VDC to the device.

I am not supplying anything to the device Vcc. And all the jumpers are removed.

Niklas