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MSP430FR2512: How to design a PCB so that proximity sensing reaches 5-10cm using 2032 power supply?

tag
Prodigy 20 points

Part Number: MSP430FR2512

I tested or modified at least four versions of the PCB,It is found that if the external dc source is used, the power supply distance can be a little farther, and it is best to achieve about 5cm.

 

However, if cr2032 is used for power supply, the distance will be shortened. At present, the best distance is about 3cm and it is not stable.

  • 0
    TI__Genius 9570 points
    Hi Tag,

    I will update the firmware to you today.

    Regards,
    Ling
  • 0 in reply to Ling Zhu2
    Prodigy 20 points
    Using your firmware is still about 3cm,And the installation of the battery will trigger proximity sensing, even if the hand left will trigger.It gets worse.
  • 0 in reply to tag
    TI__Genius 9570 points

    If the installation of the battery will trigger proximity sensing. Update timeout parameter in source code. After 10 second the system will be back to normal.

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