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Hi, Im just starting microconrollers and am trying to build a robot. I am having a little trouble with my i2c devices though. I am trying to use a compass that I got at mindsensors.com but cannot get it working. I have read the datasheets, but they have not helped, and there is no sample code to...

Hi, Im trying to get my math co-processor to work. It is the Um-fpu V3.1 dip chip. I am trying to use it with an i2c bus setup, but unfortunatly the chip dosnt respond. I followed the data sheet and tied all the pins high, ground, and used the usual 4k7 resistors to tie the i2c bus lines high...