Building a GAIT/Running Form Analysis Shoe Clip-on Sensor

RE: Building a GAIT/Running Form Analysis Shoe Clip-on Sensor

ivansanchez — Fri, 16 Feb 2018 09:34:07 GMT

[quote userid="68848" url="~/f/nordic-q-a/30562/building-a-gait-running-form-analysis-shoe-clip-on-sensor"]Such capability would require multiple sensors on the chip and I want to know if Nordic has a ready solution for this use case?[/quote]

Well, a quick search for accelerometers and gyros tells me that there are embedded models with an I²C interface. The cool thing about I²C is that you can chain peripherals into a bus, giving you a (theoretical) maximum of a couple hundred peripherals. Hardware limitations can push this number down to 8 or so (read the datasheets for your accels and gyros!).

See https://devzone.nordicsemi.com/f/nordic-q-a/1843/i2c-example-with-nrf51822 for more info about getting started with development of I²C on a nRF chip.

If you opt for more bare-metal accels and gyros, have a look at the pin assignments of the 52840 - there should be more than enough.

[quote userid="68848" url="~/f/nordic-q-a/30562/building-a-gait-running-form-analysis-shoe-clip-on-sensor"]Am I required to engineer the PCB myself or is there a out-of-box solution available that I can custom configure?[/quote]

Out-of-the-box is gonna be impossible for something with multiple sensors like this. You might want to have a look at the nRF51 dongle and grab a couple of accel-gyro breakout boards. That should give you something small enough for prototyping.

RE: Building a GAIT/Running Form Analysis Shoe Clip-on Sensor

Ankit Madan — Fri, 16 Feb 2018 09:04:45 GMT

Found another similar option http://www.st.com/en/evaluation-tools/steval-wesu1.html want to explore what nordic has to offer

RE: Building a GAIT/Running Form Analysis Shoe Clip-on Sensor

Ankit Madan — Thu, 15 Feb 2018 20:45:14 GMT

Its expensive as well, I cant sell the end product with the device cost being so high..any other alternatives?

RE: Building a GAIT/Running Form Analysis Shoe Clip-on Sensor

Ankit Madan — Thu, 15 Feb 2018 20:40:08 GMT

This will be big to fit on a shoe for long duration. This will be good if we are testing the concept. I am looking for something very compact. Or am I missing anything with sensortile

RE: Building a GAIT/Running Form Analysis Shoe Clip-on Sensor

Matt — Thu, 15 Feb 2018 20:37:55 GMT

You may also want to take a look at ST sensortile:

http://www.st.com/en/evaluation-tools/steval-stlkt01v1.html

RE: Building a GAIT/Running Form Analysis Shoe Clip-on Sensor

Ankit Madan — Thu, 15 Feb 2018 20:16:10 GMT

The final product should look something like this - https://www.kickstarter.com/projects/guardyen/metawear-bluetooth-sensors-w-temp-pressure-acc-gyr/description

Are there platforms like these available out-of-box?