Let's Make Robots!

What should be the resistance between clock, and data on an I²C bus?

trying some i2c devices, though they aren't working, so i thought maybe they where shorting, my cheap multimiter reads 3kohm, is it suposed to be like this?

the device is a cheap ebay nunchuck, made myself a wiichuck adapter with vero board, though i'm measuring the resistance directly from the original socket, so it's not my homemade adaptor thats causing the probems...

 

thanks 

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.

..... hi amando........

Do your self a favour and cut the NunChuck cable in half and attach pins to the cable ends.

I have done this and the plus factor is you can then use the plug direct into the Wii-Mote as well..(if you have one that is

Your meter might measure the pullup resistors commonly used with I2C. Open up the nuchuck and check.

i'm pretty sure there is something wrong, the resistance betwen every pin is 2-3 kohm, that includes 5v and 0v, 5v and clk... it doesn't even work on a wii, i already got a full refund...

 

what i could try, is just desoldering the axelarometer, and making a board for it...