Raspberry Pi + Celestron127SLT = Hands-Free Telescope Focus System
Cosmos enthusiast Jason Bowling’s come up with a very straightforward way of focusing his Celestron 127SLT with a Raspberry Pi Zero SBC. “One of the tradeoffs with the mid-price Celestron 127SLT is that it shakes rather badly when you touch it, and takes several seconds to settle down. I’m focusing using a Bahtinov mask and…