flathill wrote:you can also just use a microphone
amberwolf wrote:If you don't have the magnet sensor for the CA, you can use any hall sensor for this, if you run 5V to it from the CA as well as the signal and ground lines. Then just stick any magnet (like from a namebadge, harddisk, speaker, dead motor, etc.) on the wheel, and there you go. All you must do after that is the appropriate math to recalculate the CA's KPH or MPH to RPM.
No, they're the "slots" or "nuts".neptronix wrote:Also, how do i find the number of poles in a BLDC motor? is that the number of wound sections on the stator?
neptronix wrote:OK - here is a hybrid of your idea
I could run a tiny speaker off the halls i bet, or maybe even run that line through a microphone jack itself?
neptronix wrote: I guess i could just hook up the negative voltage of the hall harness + one of the sensor leads straight into the speedo, huh?
neptronix wrote:Zappy, you win this thread. I didn't know these existed, esp. at such a low price. Ordered!
amberwolf wrote:neptronix wrote:Zappy, you win this thread. I didn't know these existed, esp. at such a low price. Ordered!
FWIW, I did mention them in a previous post in the thread.
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