Mounts and GOTO control

Pimp your NEQ6
Detailing all kinds of projects for upgrading your EQ6 mount.
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Smartphone polar finder
A polar finder implemented in a Javascript web page. Hold a smartphone agains the RA axis body of your mount and use this webpage to adjust polar Azimuth and Elevation for your location. Note: make sure the compass is actually behaving, so calibrate and avoid iron objects.
Laser polar finder
A polar finder based on a green laser module, for the Vixen Polaris mount.
To be inserted in the polar finder scope tube.
A compact power bank
This page describes a 12V/20Ah powerbank with integrated charger in a 30x40cm toolcase.
Sky Quality Meter
A description of a DIY SQM including meteo functions like pressure, humidity and temperature.
Wireless GOTO
(Old) Design and implementation of a full GOTO driver, controlled wirelessly from any planetarium program using the LX200 protocol over a Bluetooth link.
Documentation can be found here. See also my JUGGLER tiny RTOS.
Stepper basics
Collection of background information and early experiments done to make a stepper driver.
Some of this information is a bit outdated.
Polaris drive
A fairly simple RA axis driver for an old Vixen Polaris mount. The design will work on other basic telescope mounts as well.
Plumbers' GEM
A German equatorial mounting head, built completely from plumbing parts.