CY8CKT-145: Design guidelines for BTN0, BTN1, and BTN2

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jobic_1363266
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Hi,

I'm looking for the guidelines to design buttons present in the CY8CKT-145-40XX PSoC kit. Does anyone have it? Also, I wanna know what are their advantages.

Thanks

WhatsApp Image 2017-12-19 at 23.42.08.jpeg

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1 Solution
Anonymous
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Afaik: The buttons are just capacitive metal pads connected to the adc pins for the PSoC to measure the capacitance every so often. Based on that, you could probably design and use buttons of any shape/size for the capsense. It would merely be a matter of having the same metal pad (possibly with some coating/covering for water/damage resistance).

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Anonymous
Not applicable

Afaik: The buttons are just capacitive metal pads connected to the adc pins for the PSoC to measure the capacitance every so often. Based on that, you could probably design and use buttons of any shape/size for the capsense. It would merely be a matter of having the same metal pad (possibly with some coating/covering for water/damage resistance).

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RyanZhao
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Hi Joao,

Kindly refer to Cypress CapSense Design Guide:

AN85951 - PSoC® 4 and PSoC Analog Coprocessor CapSense® Design Guide | Cypress Semiconductor

Thanks,

Ryan

Anonymous
Not applicable

Thanks Ryan! Page 12 holds the start of the physical design/description

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