ANT Forum

I am working on a project that utilizes a GSC-10 speed cadence sensor. I have successfully configured and am able to reliable receive it with a AP1 module and calculate speed and cadence.

What I would like to do is instead of calculating the cadence, I would like to determine when the magnet passes the cadence sensor.

I assumed that every time the revcount was updated that that would be the instant or close to it when the magnet passed the sensor.

This sort of works however it isn't a reliable method. The cadence fluctuates drastically. At an approximate cadence of 60rpm I can see fluctuations of 40 to 60 for a while then see 80's then back to 60 then 40 and so on.

So my question is is this possible to accomplish.

Bill      

The bike speed cadence profile calls the timestamp the "Bike Cadence Event Time". However, there's no specification what that event is, e.g. the p.o.t. when the magnet passes the sensor. So a developer may freely implement whatever s/he likes, either use an event driven approach, sampling, ...

To make it short: the device profile doesn't really specify what you would need.      

Thanks for the reply. I sort of had that feeling, but wanted to throw it out there to the experts.