Having used a power meter on my bike for a few years now and having numerous issues with my generation 1 stages power meter in particular got me thinking how hard would it be to make my own power meter.
Diy bike power meter.
Basically the idea is to prototype a low cost affordable fitness power meter for cyclists using an esp8266 wifi module 4 strain gauges in wheatsone arrangement measured by.
There is no right way or even a best way to mount one.
I compared the output of my diy power meter with the outputs of my elite kura smart trainer claimed to be 1 accurate as well as garmin vector 2s.
In my case i send the power p and the rounds per minute rpm.
Clip in ride for a few hundred yards meters zero offset and off you go.
I knew from the start that it would be non trivial and that it would.
By joshjohnson 2018 02 08.
For the power supply i use two lipo battery packs 7 4v 1200 mah for the receiver and a smaller 600 mah one for the transmitter.
If you have more than one bike power meter pedals are also the easiest to transfer.
Diy bicycle power meter part 1.
To save space i use an arduino nano and the nrf24l01 are responsible for the communication.
Our offer to sell you a license to manufacture power meters using our technology for down to around 10 crankset is still standing.
A power meter is a device fitted to a bike that measures the power output of the rider.
Most commonly power meters use strain gauges that deflect slightly when a force is applied.
In this project i will show you how i combined an arduino an ina219 power monitor ic an oled lcd and a micro sd card pcb in order to create a power meter logger that has more functions than the popular usb power meter.
Ok this one was easy indoors on smart trainer no changing weather conditions.
Make your own power meter logger.
As with any other power meter you then pair it to your head unit if it s your first time using the power meter set your pedal lengths and make whatever other setting adjustments you want.
They work great and you can send as many values as you want.
It s all about.
I am quite confident that i am on the right track.
First test ride is done.