Welcome to openrowingmonitor Discussions!

[JaapvanEkris]

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[gvcormac]

Hi JaapvanEkris. We met on the C2 forum. Is there a howto on hardware for speed sensor?

thanks,
Gordon

[JaapvanEkris]

Hi Gordon,

I recognised the alias :) Sorry for the late reply. Most rowing machines use a Hall Effect Sensor combined with two to four magnets on the flywheel (they must use at least two to keep the flywheel balance). Dave Vernooy used a CD with an optical sensor: https://dvernooy.github.io/projects/ergware/

On both the NordicTrack and Concept2 I used the existing sensor.

Jaap

[ITully]

Hi,

We have success, first checked that the data was clean, and I am using a KY-024 sensor on DO. It wasn't clean so moved the sensor back from the magnet and modified the line in GpioTimerService.js " const sensor = new Gpio(config.gpioPin, 'in', 'falling', {debounceTimeout:5})". I am using an old infiniti Power Row machine.

Once data was clean, then it was just a matter of getting the configuration right.

A few things to note,

• watch the comment fields and make sure there is a comma after the settings you add except for the last line.
• Kill npm then restart the program by going to "root@rowingmonitor:/opt/openrowingmonitor/bin#"
• then invoking ./openrowingmonitor.sh
• make a change to config.js then ctrl C then run the command line again as above
• You will see the debug messages get written

I am using the app EXR and the BLE is working fine.

[sean808080]

hi @JaapvanEkris
I just upgraded to the v1beta_updates branch at abasz's recommendation since I was having some heart rate reading issues. Very nice to see so much new dev on your fork here. Looking forward to learning about all the new functions here. Cheers