Supporting educators through Patreon

Joshua Bardwell inspires me simply because of his devotion to educating as fully as he does. I’m amazed at his devotion, and grateful to be able to support him.

https://www.patreon.com/thedroneracingengineer

Bruce Simpson is amazing as well, just watch any of his videos! And this is his full-time gig, so support the man and his family!

https://www.patreon.com/user/posts?u=2951605

Brushless vs Coreless

ref: http://www.rctech.net/forum/89282-post2.html

Coreless motors are similar to what we now use, the difference being that their windings are not wound around an iron core. This makes the armature much lighter, so they spool up a lot quicker. Coreless motors have brushes and commutators, and will work with normal speed controls.

Brushless motors do away with the brushes and commutator, they need special speed controls to handle the switching that is normally performed by the brushes and comm.

USB Microscope software for Mac

http://www.oasisscientific.com/downloads.html

Tech: PWM > OneShot125 > OneShot42 > MultiShot (DShot)

PWM > 125-250us > 42-84us > 5-25us

All the first listed are analog, up to DShot, a digital protocol.

These are the protocols used for communicating with the ESCs.

ref: http://www.propwashed.com/dshot/