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Detailed entries for one subject from the INDEX TO HOW TO DO IT INFORMATION.
Click on a see also (sa) or tracing (xx) to view detailed entries about a related subject.
The entries are in alphabetical order by magazine name and then in chronological sequence.
To obtain a copy of any magazine article contact your local public library or the publisher.


Tips on interfacing microcomputers to servo mechanisms by means of radio control devices like those used in model airplanes.
BYTE Mar 1977 (v.2#3) pg. 9

Controlling DC motors. How to use a microcomputer to control the shaft position of 1.5v to 3v hobby DC motors to within a quarter turn out of a range of 16,384 turns.
BYTE Jul 1978 (v.3#7) pg. 72

DC motor controls. Precisely control permanent magnet DC motors with the circuits described here. Build a motorized platform.
BYTE May 1981 (v.6#5) pg. 66

Build a serial servo controller. Use this project to directly control up to eight servo channels and expand it to control as many as 256 servos for robotics, animated-display, etc. The controller accepts RS-232 serial data in a fixed, five-byte format and outputs pulse-width-modulated (PWM) signals to control the servos.
COMPUTERCRAFT May 1993 (v.3#5) pg. 10

Introduction to elementary servo systems and servo circuits. Used to remotely control an electric motor.
CQ. THE RADIO AMATEUR'S JOURNAL Mar 1980 (v.36#3) pg. 64

Closed-loop control systems. Their fundamentals, design, and applications (primarily in servosystems).
ELECTRONICS NOW Feb 1995 (v.66#2) pg. 69

How to interface the common three-wire radio control model-airplane servo to your computer and use the OUT command from a BASIC language program to control the servo.

Understanding shaft encoders. Both incremental and absolute encoders are discussed.
MODERN ELECTRONICS [2] Sep 1985 (v.2#3) pg. 74

Understanding electronic feedback. Includes feedback demonstration circuits, operational amplifiers, phase-locked loops, and servomechanisms.
MODERN ELECTRONICS [2] Jun 1986 (v.3#6) pg. 73

Experimenting with a servomechanism.
POPULAR ELECTRONICS [1] Oct 1982 (v.20#10) pg. 92

Build the "motion memory", an automated assistant that can record and playback motion sequences on cue. Interface a joystick to a pair of hobby servos. Up to 21 seconds of motion are recorded in digital memory. Est. cost: $35.
POPULAR ELECTRONICS [2] Aug 1994 (v.11#8) pg. 63

Servo driver circuit for testing suspect servos (or as a project interface).
POPULAR ELECTRONICS [2] Oct 1994 (v.11#10) pg. 24
Correction POPULAR ELECTRONICS [2] Oct 1995 (v.12#10) pg. 72

A cheap slave driver. Build a simple controller circuit to remotely operate a servo-motor.
POPULAR ELECTRONICS [2] Oct 1997 (v.14#10) pg. 42

Build this solar tracking system. An electronic servo system swivels a solar collector panel so it follows the sun across the sky.
RADIO-ELECTRONICS Feb 1979 (v.50#2) pg. 42

How to interface R/C (radio-control) servos.
RADIO-ELECTRONICS Feb 1983 (v.54#2) pg. 50

Scanner-servo-recorder. Device records experimental data in the form of graphs drawn by a pen on a moving sheet of paper. It also records a series of events and measures the interval of time in which an event occurs. In addition, it can feed information back to the source, thus functioning as a servomechanism. Est. cost: $18.
SCIENTIFIC AMERICAN Jul 1966 (v.215#1) pg. 114

Plans for an inexpensive device for electrically synchronizing the rotary motion of two mechanically independent shafts. Used to create remote display of wind direction at home weather station from a weather vane some distance from the house.
SCIENTIFIC AMERICAN Oct 1969 (v.221#4) pg. 134