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Forum Need Help regarding HSM100 Schematic
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Related

Need Help regarding HSM100 Schematic

ravi_butani
ravi_butani over 11 years ago

Do any one have HSM100 humidity sensor schematic...? I need it for understand how my other analog sensor will talk with STM330 temperature sensor. I have tried to find it on enocean website but no luck... I have tried to get rough idea about hsm100 schematic using pics...but all pics available on internet is with bottom side..but no image from top..

image

Note: I do not require HSM100 for my project but I just need Schematic of HSM100 to build my custom analog sensor...

What I know from STM330 user manual is..

SWPWR is VCC and only available when module not in deep sleep

GND is ground for HSM100

ADIO3 is Analog input from HSM100

Other pins ---I have no idea

 

image

 

may bebryan.edelman@enocean.com can you please help me in this matter...?

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  • mcb1
    0 mcb1 over 11 years ago

    If you can wait until tomorrow I can sort out some high resolution images of both sides.

     

    mark

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  • ravi_butani
    0 ravi_butani over 11 years ago in reply to mcb1

    Thanks in advance...

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  • hlipka
    0 hlipka over 11 years ago

    Actually the pins you marked are the ones needed. SWPWR gets active some 30 microseconds or so before the measurement starts, and then the analog pin will be read. But I think OpenHAB will not be able to use that, because it doesn't know the EnOcean configuration needed for that.

    The STM330 user manual describes the measurement process in more detail, I think.

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  • Former Member
    0 Former Member over 11 years ago

    The STM330 user manual does have the details. The source code is also available - http://www.enocean.com/en/download/STM33x_Sources_2_4_0_2.zip/

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  • mcb1
    0 mcb1 over 11 years ago in reply to ravi_butani

    Ravi

    (2nd try since it decided I wasn't allowed to post here)

     

    Here are some pictures (click for full size).

    I can't attach the larger version so 2MB is all you get ... sorry.

     

    image

     

    image

     

    image

     

    Mark

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  • hlipka
    0 hlipka over 11 years ago in reply to mcb1

    Too bad one still cannot see what the moisture sensor is on it image

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  • michaelwylie
    0 michaelwylie over 11 years ago in reply to hlipka

    It kinda looks like one of these, but the pinout is definitely different.

    http://www.sensirion.com/en/products/humidity-temperature/humidity-sensor-sht2x/

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  • mcb1
    0 mcb1 over 11 years ago in reply to hlipka

    Double checked and there are no markings on it...

     

    mark

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  • ravi_butani
    0 ravi_butani over 11 years ago

    My conclusion is hsm100 output is not analog .... Its pwm and stm330 measuring pulse width to take humidity measurement on adio3 .... So adio3 is configured as input for timer interrupt....
    All my thoughts regarding analog sensor interfacing with stm330 is wrong...I need to think again with different considerations...

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  • ravi_butani
    0 ravi_butani over 11 years ago in reply to Former Member

    Can you help me by providing me a part number of humidity sensor chip on hsm100 ?

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