I am looking to identify the right sensors for an arduino project I am doing. I need to identify sensors which can detect movement of muscles/tendons under the skin. The sensors need to be thin and relatively cheap (say between $1 to $10 per sensor).
I am thinking of using the FSR400 from Interlink Electronics, but are there any better sensors available in similar form factor?
Would love to have your suggestions and thoughts. I am very new to this project and have to learn a lot.
Thanks for your response.