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Device for blind people question


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Hi everyone, I am studying electronics at college and only know basic things at the moment, but I would appreciate a little help with a project we are doing.

We have a electronic device that gives a digital output like a calculator with numbers but instead we want to replace the numbers with vibrations so that a blind person can use the device aswell. Eg. for 1 we give a * (vibration)..2 *-* etc.

Any thoughts and help is appreciated!

/Kim and John

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