This is a DIY circuitry for driving telescope’s stepper motor for precise motion control. It uses an Arduino Uno board and an L293D-based stepper motor driver IC. The stepper motor is then coupled with a suitable drive train attached on to a telescope’s fine adjustment knob.
Once you’ve built the circuit above and uploaded the sketch to the board, blinking lights should indicate that the controller is working and ready to track the skies!
To view a larger image, click here. To get a copy of the sketch, please email firstname.lastname@example.org.
Night Sky in Focus Astronomy and Amateur Radio © Anthony Urbano (Manila, Philippines)