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  • 2016-09-26 12:50:21

    Worked great for level shifting 5V to 3,3V for the ESP8266

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  • 2020-07-04 15:11:25

    Perfect

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  • Aurum
    HU
    2020-02-26 03:59:33

    I haven't tested as all my devices currently are 3.3V but I assume it works :P

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  • 2020-01-09 07:41:08

    It seems ok, haven't tested it yet.

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  • stragf
    CH
    2019-12-10 12:40:12

    functions as expected

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  • 2019-09-24 04:46:13

    works as advertised good value

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  • 2015-03-10 05:17:05

    Before buying this conversion module, I always had level conversion problems. In the case of a lot of modules the module itself operates from 3.3V, in it is made useable in 5V environment simply by adding a 3.3 V voltage regulators, but nothing is done with the logic signal levels. Using resistors for level conversion usually works, but not reliable, and if something doesn't work, it is not easy to find out what causes the problem. This tiny module is an easy and cheap solution for this.

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  • 2018-01-30 17:32:50

    This little I2C (or any mono- or bi-directional 2-wire bus) level converter works just fine. There is nothing in the description that indicates that there is an on-board LDO 3v3 regulator. This is handy if you need it (to supply the 'B' voltage). Not so handy if you don't know it's there and apply 3v3 to the "BVCC" pin whilst applying 5v to "AVCC". Probably not a crisis, but you would be shorting two power supplies together. A close look at the photos in the listing show the presence of the 5-terminal

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  • 2015-03-31 17:57:11

    Although this claims to be an I2C level conversion module, it should more correctly be called a "Generic Bidirectional Level Conversion Module". Its a very simple module, converting your logic signals between two logic levels, set by the voltage applied to the board, almost any low voltage will work. I converted between 2.2V and 5V without problems. Great to gest your circuits before designing the real hardware.

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  • 2014-11-25 01:49:34

    This little board makes life a lot easier. When you're working with sensors and other peripherals, you often find that they are either 5V or 3.3V. This usually isn't an issue when you're using an MCU that operates at the same voltage. But ever so often, you find a part that isn't the same voltage as your MCU. That's when a tiny board like this becomes a life-saver. An effective and cheap solution to make different parts with different voltages compatible with each other. It's easy and simple to use,

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