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Topic: I2C bus on multiple BH1750 sensor (Read 2 times) previous topic - next topic

ken_chuang

I am using the following connection for Arduino Mega 2560

    VCC       ------        5V
    GND       ------        GND
    SCL       ------        SCL
    SDA       ------        SDA
    ADD       ------        GND

Most of the sample codes from chinese websites worked for me with Arduino Mega 2560 with code change to "wire.read" and "wire.write"

YasserH

Hi Ken,
Thanks, I will check that..

Grumpy_Mike

As that address pin can be left unconnected there must be an internal pull up, so don' connect the pin through a 100R but direct.

michinyon

Are you getting any response at all ?    Get the "I2C scanner" program,  which will identify if the
device is responding to any I2C communication.

Mohannad_Rawashdeh

no thing is impossible except that the state of your mind keeps it so...

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