I knew from the start that it would be non trivial and that it would.
Diy bike power meter.
It s all about.
Diy bicycle power meter part 1.
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.
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.
A power meter is a device fitted to a bike that measures the power output of the rider.
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.
First test ride is done.
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.
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.
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.
Ok this one was easy indoors on smart trainer no changing weather conditions.
By joshjohnson 2018 02 08.
They work great and you can send as many values as you want.
Our offer to sell you a license to manufacture power meters using our technology for down to around 10 crankset is still standing.
There are several different ways to mount a power meter to a bike each with its own set of advantages and disadvantages.
If you have more than one bike power meter pedals are also the easiest to transfer.
To save space i use an arduino nano and the nrf24l01 are responsible for the communication.
In my case i send the power p and the rounds per minute rpm.
Make your own power meter logger.
If you want to start manufacturing power meters may be inspired by this diy project please get in touch using the form below.
Clip in ride for a few hundred yards meters zero offset and off you go.
There is no right way or even a best way to mount one.