Thank you for your recommendations for the FSRs. We are glad that you are still excited about our system.

The hypershell is certainly an exciting piece of technology. From what I could gather it seems like they use multiple AI algorithms to controller their devices. We have avoided AI models on most of our controls for predictability, simplicity, and processing power. It would certainly be interesting to see what you can do with AI models on the openexo system. Please see my response to @KevinGou on 25/09/2025 about using an AI model from the Aaron Young group at Georgia Tech for some more input on using AI models with the openexo system.

Please continue to reach out with any more questions.

please also see the following link to our build wiki for some more information on adding external communications with I2C: https://wiki.theopenexo.org/app/page/1IDIvK_TSzBucPz_MaAadYhhmePD3nf_bLp5UVSXbmy0?p=14AIGjap02Wv8jPJxyezvfYJYFVIJIoO1

Thanks for your answer. I know that it's for research pruposes and I can say I do research to developp an exo for children because I don't fin exo for children. I'm in France so no FDA.

I'm interesting for the wireless FSR but the limit could be the weight and the energy consumption. Good to know that you work of this solution

I alreadu use a wit BWT901CL attached on the footwear for walk gait measurement. We could use the 3 accelerometers of this sensor to detect the heel strike and communicate with bluetooth.

Other question is how the hypershell exo work without FSR sensor (https://eu.hypershell.tech/) My goal is to have the same exo as the hypershell but for children

Mathieu

Thanks for your answer. I know that it's for research pruposes and I can say I do research to developp an exo for children because I don't fin exo for children. I'm in France so no FDA.

I'm interesting for the wireless FSR but the limit could be the weight and the energy consumption. Good to know that you work of this solution

I alreadu use a wit BWT901CL attached on the footwear for walk gait measurement. We could use the 3 accelerometers of this sensor to detect the heel strike and communicate with bluetooth.

Other question is how the hypershell exo work without FSR sensor (https://eu.hypershell.tech/) My goal is to have the same exo as the hypershell but for children

Mathieu

Thanks for your message. I know that it's for research purposes and I can say I do research for my son because I don't find an exo for children and I'm in France so no FDA

Concerning you proposal to have wireless FSR, I think it's a good way to investigate. The limit of the wireless FSR is the weight and the energy consumption. 

To do walk gait measurement I already use a WIT BWT901CL directly attached on the footwear. There are 3 accelerometers inside that could be used to detect the heel strike and a bluetooth connection. 

An other question is how the hypershell exo work without any sensor on the foot (https://eu.hypershell.tech/). My goal would be to have the same exo as the hypershell but for children.

Mathieu

We are currently developing a system to perform wireless communication to share the FSR data with the teensy. If your concern is just about the wires we hope that this would help address your concerns when it is finished. Does this sound like a solution that would work for you and your son? We would love hear your thoughts on this as we continue to develop more resources for the openexo skeleton community. 

We look forward to hearing about the work you do and any thoughts you share! Please reach out with any more questions,

Connor

My son has muscle weakness and I want build the hip exo

I'm interesting for using the IMU for the hip instead of the FSR (to have no wire on the foot). How did you use it?

Mathieu