It would be nice to add support for a home switch so remote observatories can easily recover from a power failure or other interruption without running the focuser into the stop. I am using the Adafruit Motor/Stepper/Servo Shield for Arduino v2 Kit - v2.3, as it has microstepping and current limit etc built in. Aslo the accelstepper library generates nice ramps for speed. I also want to migrate to DC servo motor/encoder drive at some point. Same arduino and motor shield, better performance, no vibration. I can help on the hardware side and testing, but my programming skills are limted. I have made a nice motor mounting bracket for a moonlite focuser if anyone wants the dimensions.
Alan
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Hi Alan
It is easy codewise to add a home switch. This was looked at some time ago. but the implementation in hardware is difficult for a lot of users, its bad enough just fitting the focuser.
If you are willing to fit a switch, I'll code it for you, email me and I send the schematic about how to wire it and then send you the code. I will need to know the .ino file you are using,
Cheers
Robert
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
It would be nice to add support for a home switch so remote observatories can easily recover from a power failure or other interruption without running the focuser into the stop. I am using the Adafruit Motor/Stepper/Servo Shield for Arduino v2 Kit - v2.3, as it has microstepping and current limit etc built in. Aslo the accelstepper library generates nice ramps for speed. I also want to migrate to DC servo motor/encoder drive at some point. Same arduino and motor shield, better performance, no vibration. I can help on the hardware side and testing, but my programming skills are limted. I have made a nice motor mounting bracket for a moonlite focuser if anyone wants the dimensions.
Alan
see https://sourceforge.net/p/arduinoascomfocuserpro2diy/discussion/general/thread/00677fb9/?page=5
Hi Alan
It is easy codewise to add a home switch. This was looked at some time ago. but the implementation in hardware is difficult for a lot of users, its bad enough just fitting the focuser.
If you are willing to fit a switch, I'll code it for you, email me and I send the schematic about how to wire it and then send you the code. I will need to know the .ino file you are using,
Cheers
Robert