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Use MSP430 + Accelerometer + Rechargeable Battery in a Wristband? Need help ensuring components.

William Judd
Prodigy 200 points
Other Parts Discussed in Thread: CC430F6125, MSP430BT5190

Hi there.

I am attempting to figure out the costs of producing a wristband with the MSP430 (CC430F6125) and some additional components so that it would be able to do:

  • 3 axis (possibly 6 axis) accelerometer sensing
  • bluetooth
  • some flash memory
  • rechargeable battery

From what I understand, the MSP430 package already contains the bluetooth and flash memory, so is it correct that I only need to (essentially) plug in an accelerometer chip and some sort of rechargeable power supply? Would I need to purchase any other components? I am looking at the moment at a ADXL346 accelerometer.

Thanks,

Will

  • 0
    TI__Genius 9990 points

    William,

    TI's bluetooth solution is not provided with the CC430F6125. It is only possible to use the MSP430BT5190. The CC430 already contains a sub 1GHz transceiver. You can find more information here:

    http://processors.wiki.ti.com/index.php/MSP430_Bluetooth_Platform

     

    Gustavo

     

     

  • 0 in reply to Gustavo L
    Prodigy 200 points

    Thanks for the information. So with the MSP430BT5190, all I need to do is fit a rechargeable battery and accelerometer? I don't know much about fitting components into a system, but I presume the bulk of the cost of producing such a system, in terms of the components, would be with the battery, accelerometer, and the MSP430? Is there anything else required for making a device that could store accelerometer data, transmit the data via bluetooth, and be recharged?

  • 0 in reply to William Judd
    TI__Genius 9990 points

    William,

     

    It really depends on a lot of things. For example, there is a cost of PCB and also assembly, unless you use what is given and don't customize it. The EZ430-RF2560 already does most of what you want. It has an accelerometer that it uses to transmit data via bluetooth. This is used in our Tux Racer demo. In that case, you would just need to add a rechargeable battery.

     

    Gustavo

  • 0 in reply to Gustavo L
    Prodigy 200 points

    Sounds good. Thank you very much.

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