MSP430FR2633: Captivate touch wheel + LED design issue

snowride

Prodigy 10 points

Part Number: MSP430FR2633

Hello. I'm very new to CapTIvate technology.

We're designing a new device and want to know if it's possible to

-have 20 small LEDS in the center of the wheel size of 50∅

-button in the center with 20 LEDs in the center

-slider control by having wheel

Please let us know. It will be really helpful.

Thank you.

over 8 years ago

0 Dennis Lehman over 8 years ago

TI__Guru 71216 points

Hello Yohan,

Yes.

Depending on how the LEDs are driven, you may need to have capacitor across each of the LEDs to minimize the capacitive coupling between the LEDs and the wheel and button.

The CapTIvate design guide has a chapter that describes the situations where the capacitor is required.

0 Dennis Lehman over 8 years ago in reply to Dennis Lehman

TI__Guru 71216 points

Hello Yohan,

I am closing this thread since it appears you have the information you needed.
Thanks for submitting your questions.

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MSP430FR2633: Captivate touch wheel + LED design issue