ANT Forum

Hi there,

I have a homemade power meter using a CC2571 transceiver and a PIC microcontroller.
During my calibration process I would like to be able to send data from the outside world to my microcontroller with calibration data.

For example I want to hang some weights from the bike pedals and adjust the internal values in my microcontroller that convert the strain gauge reading to torque until the values are correct.

Is there existing hardware to do this, maybe some kind of USB stick that can also send custom messages? Or would I have to setup a second piece of hardware myself to do this and have the CC2571 in the power meter open a 2nd channel during calibration to receive data.

Any suggestions on how to do this would be welcome, ideally I want to be able to go for a ride with my power meter, realise the reading are 10% too high, somehow send new corrected calibration(slope value) to my power meter over the air and have the PIC store this new data in flash.

Eoin      

Hi,

You could send "manufacturer specific data pages" to your power meter over the same channel, or you could open a second custom channel to receive data, or you could send "custom calibration data pages" using using a USB stick or another transceiver. In any case, I do not know of any application which does this currently, although it may be easiest to try and use the Python Script engine in SimulANT+ or the AutoANT Scripting engine in ANTware II to send the messages you need.

Cheers      

Thanks for the response