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Main => General Discussion Board. => Topic started by: RayS on January 03, 2017, 07:54:36 PM
Some of you at Worldflight 2016 know that I recently came into possession of a 3-axis trim gauge of unknown origin. The trick was determining how to drive it correctly. Some suggested using an H-Bridge, which is perhaps the most correct way but I decided to ignore traditional convention and try something different.
The end result:
I ended up driving the "Trim Pitch" indicator by creating 2 PWM channels using a Teensy, and driving one of those PWM channels inverse of the first channel. The final result is a smoothly-operating pitch indicator with little to no inductive kick, driven directly by a Teensy 3.2 card.
Cool, would love a small video. :)