# MicroPython V3.1.2 / I2C scan 的問題

**URL:** <https://forum.amebaiot.com/t/micropython-v3-1-2-i2c-scan/1663>\
**Category:** MicroPython\
**Created:** [January 13, 2023, 10:48pm UTC](https://forum.amebaiot.com/t/micropython-v3-1-2-i2c-scan/1663 "2023-01-13T22:48:22Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Kevin](https://avatars.discourse-cdn.com/v4/letter/k/2acd7d/32.png) [@Kevin](https://forum.amebaiot.com/u/Kevin)\
**Post date:** [January 13, 2023, 10:48pm UTC](https://forum.amebaiot.com/t/micropython-v3-1-2-i2c-scan/1663/1 "2023-01-13T22:48:22Z")

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使用最新的 MicroPython SDK V3.1.2 編譯後及upload ，使用正常,可以進行 REPL操作。測試 i2c scan() 功能,發現這個 function 沒作用。是確實的嗎? 初步測試控制 PCA9685 是OK的.

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**Author:** ![daphwl](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.amebaiot.com/daphwl/32/756_2.png) [@daphwl](https://forum.amebaiot.com/u/daphwl)\
**Post date:** [January 16, 2023, 1:14am UTC](https://forum.amebaiot.com/t/micropython-v3-1-2-i2c-scan/1663/2 "2023-01-16T01:14:54Z")

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@kevin 你好,

現在i2c scan() 功能確實暫時沒作用，但是下一個release這個功能應該就會加進去了~ 😃