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Radio Control Signal Frame-rate Divider

Radio Control Signal Frame-rate Divider
Model radio-control equipment has evolved considerably over the years, and the humble servo has grown from the 1.5 ms at 50 fps (frames per second) format, to the more precise and powerful digital variety using, typically, 400 fps, and accessories such as helicopter gyros have evolved to make use of these improved servos. As a result, the later generations of gyros often only provide the 400 fps ‘digital’ signal, which is not suitable for use with the older ‘analogue’ servos. All is not lost, as this circuit allows only one frame in eight to reach the servo, replicating the 50 fps system.
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Gerber file

CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor Members can exclusively download these files for free as part of their Membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service. Elektor recommends its business partner Eurocircuits as the company of choice for its own prototypes and volume production in selected cases.

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