Can you kindly elaborate on the doubts you have on the tilt switch solution? Is it because of the switch's inconsistency for not making contact?
which would go a long way towards helping identify patterns (vs. just looking at raw data, which might be near impossible).
It would but as I said previously template matching is a difficult and inexact process especially on such a small processor with little memory as an Arduino.
If her walking on toes doesn't bother her, why does it bother you?If it's only because her peers tease her for it, then by insisting that the way she walks is "wrong", you're really letting those peers make the rules.When she gets to the age at which she goes out in the world, she can just wear high-heeled shoes. If she doesn't outgrow toe-walking first, that is.
Not only teasing. It will also lead to bad posture and back problems if uncorrected.
This force sensor is very flathttps://www.sparkfun.com/products/9375
I suppose I'll start it off simple
QuoteI suppose I'll start it off simpleThat is always the way to go. If you have difficulties post your code and I am sure people will help out. If the film of your daughter is typical (i.e. not exaggerated for the camera) then I am fairly sure a tilt switch will do the job. I cannot promise to keep up as I have a lot on at the moment but I have ordered a tilt switch myself to mess around with.Although I have not taken to wearing high heels I have been walking around on tip-toe in different footware. Once I get to boots with ankle support and a steel insole it is not possible. Would a second prong of attack on the problem not be to get your daughter shoes/boots that have very firm soles? Then rather than having to remember not to walk on tip-toe she would have to make an effort to do it. In winter solid shoes/boots would not look out of place.
I'm struggling to see how a tilt switch would work on a moving foot - I think you might find it difficult to eliminate all the transients caused by movement of the foot. The pressure based approach would seem inherently much more reliable.