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piezo_keypads

Former Member

Hi,

 

i'm starting a new project, the global idea is to enter some datas through a keypads.

 

the keypads need to be with a IP68

 

so the best keypads for my project is a piezo keypads

 

image

 

I don't find anything in the datasheet :  http://camdenboss.com/media/category/files/piezo_keypads.pdf

Can i use this type of keypads like any other 4x4 matrix keypads for my arduino ?

Can i use a standard keypads tutorial to connect my piezo keypads to my arduino ?

 

Thanks !

 

(English or French)

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    Aside from the fact the PDF is rather lacking in information, specifically where the 24V connects and how the output is presented to the interface

     

    I get the impression the output is simply a 4x3 or 4x4 switch matrix (Probably fets instead of mechanical), the same as many other membrane keypads are and if so should be able to be scanned through the existing keypad libraries for Arduinos etc.

     

    the 200mA is the rating of the switches, not the current being output, I would suggest that a simple pull up resistors to the supply of the scanning microcontroller would be sufficient or use the internal pullups of the microcontroller GPIO pins.

    As as the unit has such a vast supply range, simply power it from the same supply as the microcontroller.

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  • 0

    Aside from the fact the PDF is rather lacking in information, specifically where the 24V connects and how the output is presented to the interface

     

    I get the impression the output is simply a 4x3 or 4x4 switch matrix (Probably fets instead of mechanical), the same as many other membrane keypads are and if so should be able to be scanned through the existing keypad libraries for Arduinos etc.

     

    the 200mA is the rating of the switches, not the current being output, I would suggest that a simple pull up resistors to the supply of the scanning microcontroller would be sufficient or use the internal pullups of the microcontroller GPIO pins.

    As as the unit has such a vast supply range, simply power it from the same supply as the microcontroller.

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