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INDI Drivers Documentation

TOUPTEK SH20 Equatorial Mount

Features

Section titled “Features”

The TOUPTEK SH20 telescope driver supports:

  • USB serial connection
  • Equatorial and azimuth mount type selection
  • 10 slew rates from 0.25x to 1440x
  • Manual motion control in north, south, west, and east directions
  • Goto and sync coordinates
  • Sidereal, solar, and lunar tracking modes
  • Track on/off control
  • Park and unpark
  • Home find and home go actions
  • Site and time synchronization from INDI clients
  • Pier side reporting in equatorial mode
  • Timed pulse guiding
  • Configurable guiding rate
  • Buzzer control
  • Meridian flip settings in equatorial mode

Installation

Section titled “Installation”

The TOUPTEK SH20 telescope driver is available as indi_touptek_sh20.

To run the driver after installation:

Terminal window
indiserver indi_touptek_sh20

When testing from a build tree, run the driver through the indi_touptek_sh20 executable or symbolic link so the LX200 generic loader can select the SH20 implementation:

Terminal window
cd build/drivers/telescope
ln -sf indi_lx200generic indi_touptek_sh20
indiserver ./indi_touptek_sh20

Operation

Section titled “Operation”

Connect the SH20 mount to the host computer with a USB serial cable. Start the driver with indiserver indi_touptek_sh20 or select TOUPTEK SH20 from an INDI client such as KStars/Ekos.

In the Connection tab, select the serial port assigned to the mount, for example /dev/ttyUSB0 or /dev/ttyACM0, then press Connect. After connection, the driver reads startup data from the mount, including mount type, track mode, guide rate, buzzer state, and meridian flip settings when available.

Main Control tab

Section titled “Main Control tab”

The Main Control tab provides the standard telescope controls:

  • Connect and disconnect the mount
  • Track, slew, and sync commands
  • RA/DEC coordinate display and target entry
  • Abort motion
  • Tracking mode selection
  • Park and unpark
  • Pier side display in equatorial mode
  • Mount type selection

Motion Control tab

Section titled “Motion Control tab”

The Motion Control tab provides manual movement and rate settings:

  • Motion N/S and Motion W/E buttons for manual slewing
  • Reverse controls for north/south and west/east movement
  • Slew rate selection from 0.25x to 1440x
  • Guide rate configuration from 0.1x to 0.9x sidereal rate

Site Management tab

Section titled “Site Management tab”

The Site Management tab is used by INDI clients to send observer location information to the mount. Time and date are synchronized from the INDI client as part of the standard telescope driver operation.

Options tab

Section titled “Options tab”

The Options tab includes the SH20 buzzer control. The buzzer can be set to off, low, or high.

Meridian Flip tab

Section titled “Meridian Flip tab”

The Meridian Flip tab is available in equatorial mode. It provides meridian flip enable/disable, after-meridian behavior, and meridian limit configuration.

Issues

Section titled “Issues”
  • The driver must be started as indi_touptek_sh20. Starting the shared indi_lx200generic executable directly loads the generic LX200 driver instead.
  • Mount type changes are sent to the mount immediately. Reconnect the driver after changing mount type so client-visible properties match the selected mode.