Acquired data with least squares linear fit.
Barn door tracker arduino.
Calibrating the barn door tracker with a digital level.
Arduino stepper motor control john barton wood april 4 2014 at 8 10 pm.
I know the arduino will be able to handle the stepper motor with a stepper motor driver but is the arduino uno powerful enough and have enough inputs for adding a lcd screen to it and some buttons for changing input values.
Hi the winter nights are on me and my mind has turned to getting good images of the milky way and other faint objects.
Assembly setting up your door tracker.
The arduino board and additional circuitry can be powered with a 7 2 volt nicd battery for portability or a standard plug in power supply.
David hash s arduino barn door tracker university student david hash now an aerospace engineer updated peterson s build with an arduino pro microcontroller 1 8 stepper and pololu microstepping driver board to give 3 200 microsteps per rotation figure b.
Then i let it run with my tracker for a while and did some least squares fitting to see how it was working.
To do that better results are obtained when you track the rotation of the earth and the simplest of these methods is by using a.
Note also the red dot sight for alignment.
So i measured a nice and constant 7 255e 5 radians second over 10 minutes.
The arduino board and its associated shield are mounted on the base of the barn door tracker.
You can however make a 6 wide board and use a 4 hinge but you may give up some stability.
Star tracker using 28byj 48 stepper motor arduino and lcd display to vary speed.
I printed the barn door tracker from thingiverse but i am making some modifications to it mainly by using a raspberry pi instead of an arduino because it will both be connected to the tracker and my camera personally i m more interested in this version i really want to build this.
Hi i am a retired electro optical and controls systems design engineer having also served an apprenticeship as an optical instrument maker in the early 60 s.
One of the comments from reddit.
19 thoughts on building a barn door mount part 1.