using more than one processor to automate an observatory dome to a fully robotic control: Shutter and dome rotation, focus, dew heaters and link to Stellarium, perhaps a webcam and weather station etc. VERY EARLY DAYS.
Components
1×
Raspberry Pi Zero
£4 from the Pi Hut
1×
Pimoroni - EnvironpHat
Pi hat, giving analogue inputs and motions, Gauss measurements (electonic compass) (£15)
1×
Box to hold pi & hat
ABS box c30mm x 70mm x 55mm or simliar
1×
Power Supply converter: 12v to 5v at 1amp.
Will feed the project via 12v recvhargeable, so need a converter to run Raspi
1×
12v rechrageable cell
prefer LiPo cell, but safer to use lead acid. Needs enough to drive a shutter mechanism for 2 mins and the pi for some 5 hours. guess at 35Ahr. Needs to work in low temperatures