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I have to design a pedometer, (theoretically, just to suggest the components with a description) so the device needs to detect any movements using an accelerometer. It will then be connected to a microcontroller in order to display the values on a LCD panel. The device should also be capable of communicating with blue-tooth devices.

  1. Can I use a 8-bit or 10-bit digital accelerometer with a 16-bit microcontroller?

  2. Instead of using a ready bluetooth device which is expensive, can I use an antenna (2.4GHz where bluetooth devices operate too) and then connect it to the microcontroller to manage communication with other bluetooth devices? A brief description of how this is possible would be much appreciated.

JYelton
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asked Nov 17, 2011 at 22:16
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1) Yes, that is the usual solution. You could use an 8-bit MCU.

2) No, you need a Bluetooth module interfaced to the MCU.

answered Nov 17, 2011 at 22:36
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  • \$\begingroup\$ thanx for your answer. its ok, done it \$\endgroup\$ Commented Nov 17, 2011 at 23:04
  • \$\begingroup\$ Use any device you are familiar with, if it's a one-off, and cost doesn't matter. \$\endgroup\$ Commented Nov 17, 2011 at 23:07

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