I'm working on gesture gloves project, which means it detect hand movement or current position, to be used in something else such as controlling a car.

I wanted to measure how much the wrist joint is bending, i used flex sensor, but when the wrist is bending while the fingers are pointing to upward ( _| ) the flex sensor became more longer in length than the wrist.. which make it hard for sewing ..

is there any alternative sensor?

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    Depends on how much effort and money you put into it. I can imagine dozens of really good sensors just to track the flexing of the joints on one hand that are modeled after the muscles in your forearm. I would imagine such a device would cost $100s plus your time and sewing skills (guessing about $10 to $20 per sensor). It would be far cheaper to just draw dots on a glove and use OpenCV to determine the angle of the fingers and wrist. – st2000 Sep 18 '16 at 22:46
  • how project is about using hardware to prevent the need of image processing. which sensor do you recommend? – O2M Sep 19 '16 at 5:16
  • @O2M You may get more ideas on the Electronics Exchange forum. – Code Gorilla Sep 19 '16 at 8:20
  • @st2000 the project is about using hardware to prevent the need of image processing. which sensor do you recommend? sorry typo mistake made the sentence sounds impolite – O2M Sep 19 '16 at 16:42

It sounds like you have not allowed the flex sensor to slide through a sheath attached to the back of the hand. Consider attaching a sheath to the back of the glove the width of the flex sensor. It's length should be equal to or greater than the flex sensor when the glove is worn and the hand is fully dorsiflexed. Anchor only the wired end of the flex sensor to the glove. If there is still not enough room for the sensor when the hand is fully dorsiflexed, revers the sensor position and anchor the wired end to the back of he hand. Allow the sensor to travel beyond the cuff of the glove if necessary.

  • I have thought about it but I thought it's going to be not practical. but since you said it, I will try it:) – O2M Sep 19 '16 at 16:44

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