I'm a total beginner in electronics and programming, my last and only experience dates back in high school when I did like to repair and soldier headphones wires and so on.
At the moment I'm an Olympic coach in kayaking, and a running and biking enthusiast. Both these last two sports improved a lot in the last years with the introduction of power based training.
I know a company which is already selling kayak power meters, but I don't want to make any back engineering.
I'd like to know if it is possible to measure the strain on a kayak paddle shaft, convert it to power, and send the informations to a bluetooth connected sport watch.
I figure out I'll need a board: Arduino (nano 33 BLE or similar?), strain gauges, battery... and a big help!
My optimal specifications should be: Wattage measure (Force*Speed), bluetooth reading on a sport watch, induction charging, and fit everything into a 26mm inside diameter carbon shaft, sealed to keep everything waterproofed (reason why I'd like an induction charger)...
Hope my project will interest you, and I must thank you in advance for your help!