% RPM indicator - Arduino controlled

08 Jan 2019 19:19 #41519 by ScottBouch
Check this out:



Limited to 30% RPM due to the transistors not being man enough. Will build a new drive circuit for it and see how it goes!

Need to fiddle around with the software a bit more to smooth it out at higher RPMs.. I think swapping a few integers for floats may help.

Cheers, Scott.
The following user(s) said Thank You: StuartC

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11 Jan 2019 09:47 - 11 Jan 2019 09:48 #41535 by ScottBouch
No we're up to 40% RPM after I've made some software tweaks.

It's also a lot smoother now, there was a bit of noise on the analogue input pin causing unstable speed, added a capacitor, and also some software averaging.

I need to build a new driver circuit to handle the power and get us up to higher speeds.



Cheers, Scott.
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11 Jan 2019 16:18 #41536 by Avionyx
Looking fantastic Scott. This stuff absolutely fascinates me so please keep posting updates.

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