Are you sure? I do not find the pullup resistors on the diagram.
Also sda1 and scl1 have pull-up?
I need set pull-up to off because I have them on the side of the sensor. right?
You use SDA/SCL or SDA1/SCL1? Can You paste me an example?
My sensor has 2 pull-up resistors of 4K7 on SDA and SCL as UDOO on pin 20-21. On schematics I see that SDA1 and SCL1 (pin 9-10 on J21 HEADER 10F)...
I connect the sensor with 5V Udoo without pull-up resistors
thanks I will ask directly on the Arduino forum
Hi, I can not use the GY-521 sensor through Arduino UDOO. I followed this example sketch (# http://playground.arduino.cc/Main/I2cScanner....
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