Telescope or camera tracking system for astrophotography.
Digital Setting Circles - DSC for Telescope Tracking using 3D printed parts and Arduino Uno, Nano, other (or Atmega/Atmel chips)
A tiny homemade radio telescope I built which can take pictures IN RADIO.
StarPointer is a DIY virtual electronic finderscope for astronomical telescopes.
This projects automatically the focus of a camera when capturing still images