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PSoC 4 MCU

user_4270881
New Contributor

Now i am going to develop a  Capacitive Touch Sensor, here i want to use a metal as over layer , is it possible ? 

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1 Solution
BragadeeshV
Moderator
Moderator

Hi safvan__muhammed​,

It is not possible to use metal overlay over CapSense sensor. The CapSense works only with dielectric materials as overlay. Please refer to the Getting Started withh CapSense guide for more information on Overlays.

https://www.cypress.com/file/41076/download

In case you need to use metal overlay, you can try our MagSense feature that uses a metal overlay (Metal Over Touch) to detect touch based on inductive sensing.

Reference documents and kits:

Inductive sensing guide: https://www.cypress.com/file/427771/download

                                           https://www.cypress.com/documentation/application-notes/an219207-inductive-sensing-design-guide

PSoC 4700S Inductive sensing EVAL kit: https://www.cypress.com/documentation/development-kitsboards/cy8ckit-148-psoc-4700s-inductive-sensin...

Regards,

Bragadeesh

Regards,
Bragadeesh

View solution in original post

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7 Replies
BragadeeshV
Moderator
Moderator

Hi safvan__muhammed​,

It is not possible to use metal overlay over CapSense sensor. The CapSense works only with dielectric materials as overlay. Please refer to the Getting Started withh CapSense guide for more information on Overlays.

https://www.cypress.com/file/41076/download

In case you need to use metal overlay, you can try our MagSense feature that uses a metal overlay (Metal Over Touch) to detect touch based on inductive sensing.

Reference documents and kits:

Inductive sensing guide: https://www.cypress.com/file/427771/download

                                           https://www.cypress.com/documentation/application-notes/an219207-inductive-sensing-design-guide

PSoC 4700S Inductive sensing EVAL kit: https://www.cypress.com/documentation/development-kitsboards/cy8ckit-148-psoc-4700s-inductive-sensin...

Regards,

Bragadeesh

Regards,
Bragadeesh

View solution in original post

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user_4270881
New Contributor

Hi Bragadheesh

Thanks for your information, Can you mention the suitable sensing inductance ic for higher thickness metal target ?

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BragadeeshV
Moderator
Moderator

Hi safvan__muhammed​,

Please let us know the thickness and material of the metal target. We have only one IC that supports Inductive sensing, ie 4700 S

https://www.cypress.com/products/32-bit-arm-cortex-m0-psoc-4700-mcus

Regards,

Bragadeesh

Regards,
Bragadeesh
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user_4270881
New Contributor

Hi

Thanks for your information. Is any separate module of PSoC 4 MagSense without controller unit ?

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BragadeeshV
Moderator
Moderator

Hi safvan__muhammed​,

Currently we only have two kits with MagSense.

1. PSoC 4700S Inductive sensing EVAL kit

2.  Coil Inductive sensing breakout board (comes without MCU) which will be released shortly.

Regards,

Bragadeesh

Regards,
Bragadeesh
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user_4270881
New Contributor

Hi

I got your document of inductive sensing design guide(AN219207 ). Which specified the etched metal overlay sensor design system, but in the document has not enough data about the etched metal overlay system. can you provide the suitable documents....

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BragadeeshV
Moderator
Moderator

Hi safvan__muhammed​,

Can you please let us know the exact information you are looking for so that I can help you?

Regards,

Bragadeesh

Regards,
Bragadeesh
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