USB Guide Port Interface (GPUSB)

Autoguiding requires a means for a computer to send guiding signals to a telescope’s mount. For most mounts, especially the entry-level ones, a separate device can be used to enable the computer ‘talk’ to the mount—an example of which is a USB Guide Port Interface or GPUSB.

Note that an Arduino can be used to build a GPUSB, using ST4 standard connector, with ASCOM drivers.

Note that the port on the left and the toggle switch on the right are simple modifications done to allow the GPUSB to be connected to my DIY Mount Controller, which will be discussed in future posts.
Night Sky in Focus
Astronomy and Amateur Radio
© Anthony Urbano (Manila, Philippines)

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