Note also the red dot sight for alignment.
Barn door tracker arduino.
Hi the winter nights are on me and my mind has turned to getting good images of the milky way and other faint objects.
Calibrating the barn door tracker with a digital level.
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.
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.
The arduino board and its associated shield are mounted on the base of the barn door tracker.
I want to use my arduino uno to control a stepper motor for a barn door tracker.
Acquired data with least squares linear fit.
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.
So i measured a nice and constant 7 255e 5 radians second over 10 minutes.
Then i let it run with my tracker for a while and did some least squares fitting to see how it was working.
19 thoughts on building a barn door mount part 1.
One of the comments from reddit.
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.
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.
Star tracker using 28byj 48 stepper motor arduino and lcd display to vary speed.
That means we want to spin our barn door tracker at a rate of 360 degrees every 24 hours which comes out to be 0 25 degrees per minute.
You can however make a 6 wide board and use a 4 hinge but you may give up some stability.
Cut your two blocks of wood pieces into 13 x 4 pieces.