Raspberry Pi 3 project for logging rowing on a WaterRower A1. It will track watt, pace, length, time, laps and heart rate (Needs ant plus stick).
The most important feature is the route feature. One needs to select route before starting a row session.
This route will be used as a template for the row session. After a rowing session is done one can download
the gpx file or even just push it to Strava.
Obviously the WaterRower A1 is needed. I also recommend a 2 EL Wire Splitter Cable and a Rasberry Pi 3. Please connect the WaterRower A1 sensor to the Raspberry Pi 3. Connect the 2 EL Wire Splitter is to the GPID 4 and ground on the RP3. Doesn't matter which way! This is a hacking project, and I am not I am not responsible for any damage caused by any problems that may arise!
A Raspberry Pi 3 with wifi and running with nodejs. I use nodejs 9.4. Recommend also use of yarn over npm.
mkdir /opt/waterrower
chown pi:pi waterrower
git clone https://github.com/andresol/waterrower-a1-logger.git waterrower
npm install
node app.js
This program supports heart rate by usb ant+ stick. Please install drivers with
sudo apt-get install build-essential libudev-dev
Install as service.
sudo npm install -g forever
sudo npm install -g forever-service
sudo forever-service install
After starting the app one can go to the web page by typing its IP:3000 int the browser. E.g https://192.168.1.190:3000. I use a iPad mini with and iPad holder.
This is in a beta stage, but look at https://www.npmjs.com/package/strava-v3 Basic you need to do the quick start guide. After that you need to create get a writeable access_token. Look at the "Running the tests" section.
Mounting the cable and Raspberry Pi 3 is done with only glue and double sided tape.
Complete Strava integration, more routes, better route handling, live view of rowing session.
Please make sure that GPIO is not shared. First gen of Raspberry Pi is to slow. Please use v3 because of speed and wifi.
This project was just a test project to see if it was possible to create a my own computer. It is badly written code that is just patched together. This project needs to be written again. Important notes if one wants to create there own project on the WaterRower A1. The WaterRower uses a magnet and the length between 2 magnets is 20.81 cm in the real world. One need just to measure the time between this. It is important to use some kind of debounce to prevent false hits.
Ratio: 100 cm is 4.805 clicks. 1 click is about 20.81 cm.
Strok rate: Measure when the clicks are accelerating with a debouching.
One can use the parameter ?test=test to get a button that simulates a rowing session.
