Precisely control my amature telescope's right ascension axis so that (when the telescope is polar aligned) it counteracts the rotation of the Earth, allowing me to take long (>~7s) exposure pictures of planets and deep sky objects (clusters & nebulae). I have an "EQ-2" mount.
It controls the rotation rate of the right-ascenction axis to counteract the Earth's rotation. I use a servo to do this a...
<p>Decorate your house today with this Raspberry Pi (Zero) controlled shooting star.</p>
<p>Control each LED individually with the I²C 16 I/O expander.</p>
<p>By programming the Raspberry Pi (Zero) you can animate the shooting star as you wish.</p>
<p>The dark PCB makes it stand out even more.</p>
<p>You can order these PCBs at <a href="...