# I2C connectme

**URL:** <https://forums.digi.com/t/i2c-connectme/4324>\
**Category:** NET+OS\
**Tags:** i2c\
**Created:** [June 29, 2011, 1:48pm UTC](https://forums.digi.com/t/i2c-connectme/4324 "2011-06-29T13:48:07Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![AndreSTB](https://avatars.discourse-cdn.com/v4/letter/a/d26b3c/32.png) [@AndreSTB](https://forums.digi.com/u/AndreSTB)\
**Post date:** [June 29, 2011, 1:48pm UTC](https://forums.digi.com/t/i2c-connectme/4324/1 "2011-06-29T13:48:07Z")

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Hi

I have a module connect ME9210 and use NET-OS 7.4, and I need to make a comunicaion I2C. I use NAI2CInit and don’t has problem, but when I use NAI2COperation has problem and the function return equal a 1. What could cause this problem?

Thanks  
André Lessa

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**Author:** ![mcarver](https://avatars.discourse-cdn.com/v4/letter/m/87869e/32.png) [@mcarver](https://forums.digi.com/u/mcarver)\
**Post date:** [September 15, 2011, 8:23pm UTC](https://forums.digi.com/t/i2c-connectme/4324/2 "2011-09-15T20:23:06Z")

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Check your GPIO.h to make sure that you have the pins free for I2C. This often happens if the pins are multiplexed for GPIO rather than I2C.