Since I aquired an Losmandy G11 mount without any goto provision I decided to create my own solution. I was a bit reluctant to use a Gemini, mainly because of the cost, but also due to the reliability since the servo motors are somewhat prone to failure. I also like to have complete control over the software/firmware so that no "show stopper" issues will ever be a problem for me. Looking around the 'net I saw other goto systems that seemed capable, but either they had needlessly complex hardware or were commercial systems that cost about twice what they should.
OnStep is a computerized goto system, usually for stepper motor equipped mounts though any step/dir interface motor driver (including servo) should work. It was designed, from the beginning, as a more or less general purpose system and provisions were made in the firmware to allow for use on a variety of mounts including Equatorial and Alt/Az (GEM, Fork, Dobsonian, etc.) It uses an LX200 like computer command set with a few extensions to suit hand controller-less operation.
There's a telescope hand controller App for Android (free in the Google Play Store,) an option to control through a website (Smart Web Server,) and a dedicated physical hand controller (Smart Hand Controller.) Or, on a PC there's ASCOM and INDI drivers for control. These options allow you to setup and control OnStep using a wide range of software including my Sky Planetarium, Cartes du Ciel, Stellarium, SkySafari, KStars, PHD2, etc. You can see most of the control possibilities in the diagram below:
Also, please visit my StellarJourney.comsite for updates, links toOnStep resources, my other astronomy software, or to see someImages taken with the assistance of my OnStep operated mounts.
If you find OnStep useful and would like to show your appreciation and support please consider making asmall monetary donation. This keeps me motivated and helps cover expenses associated with my projects.
Hello,
I have bought two Blue Pills on ebay on which BOOT0 is not working....If it is the same issue for you, you can check by mesuring voltage between R3 and BOOT0 pin of the chip. In my scenario, I
Hello,
I have bought two Blue Pills on ebay on which BOOT0 is not working....If it is the same issue for you, you can check by mesuring voltage between R3 and BOOT0 pin of the chip. In my scenario, I
The value of the pull ups is not critical. 2.2k is lower than I would use personally, i usually use 4.7k. But anything in that range will be fine.
-Jerry
The value of the pull ups is not critical. 2.2k is lower than I would use personally, i usually use 4.7k. But anything in that range will be fine.
-Jerry
Hello, Dave,
That's exactly what I thought. The system of pull-ups is clear and now also the twisting or non-twisting concept. Thank you very much for your patience and detailed answer. I will let you
Hello, Dave,
That's exactly what I thought. The system of pull-ups is clear and now also the twisting or non-twisting concept. Thank you very much for your patience and detailed answer. I will let you
Olá amigo, qual tipo de onstep está usando?
Eu estou usando um kit vendido aqui mesmo , e uso dois Nema 17, está tudo perfeito.
Jorge
Hello friend, what type of onstep are you using?I'm using a
Olá amigo, qual tipo de onstep está usando?
Eu estou usando um kit vendido aqui mesmo , e uso dois Nema 17, está tudo perfeito.
Jorge
Hello friend, what type of onstep are you using?I'm using a
Hi, how you does to work your small travel 3d mount with steps motor planetary ruduction 100:1, unhappy my mount doesn't work in track speed, is very fast, I try all ways. Please help me
Thanks
Hi, how you does to work your small travel 3d mount with steps motor planetary ruduction 100:1, unhappy my mount doesn't work in track speed, is very fast, I try all ways. Please help me
Thanks
This is a good strategy that is not in wide use yet.
The motors you quoted should do a decent job with very good resolution, using 1/16 microsteps.
And with that, you should be able to get 2.5 to 3
This is a good strategy that is not in wide use yet.
The motors you quoted should do a decent job with very good resolution, using 1/16 microsteps.
And with that, you should be able to get 2.5 to 3
Hi all
So I want to modify a eqm-35 non goto to be a goto mount using onstep,
The question I have is which type of drive would be most suitable, more for astro photography than high slew rates, the RA
Hi all
So I want to modify a eqm-35 non goto to be a goto mount using onstep,
The question I have is which type of drive would be most suitable, more for astro photography than high slew rates, the RA
Yes, your example where you have the N from the momentary switch (pushbutton) connected to the N input pin on the ESP32S and also to N on the resistor network is correct. I won't explain the function
Yes, your example where you have the N from the momentary switch (pushbutton) connected to the N input pin on the ESP32S and also to N on the resistor network is correct. I won't explain the function
Oi, obrigado por responder. Minha montagem é um projeto sobre uma montagem 3d de viagem pequena e pequena, com dois motores de passo com redução de planetário 100/1, mas quando eu finalizo tudo, a
Oi, obrigado por responder. Minha montagem é um projeto sobre uma montagem 3d de viagem pequena e pequena, com dois motores de passo com redução de planetário 100/1, mas quando eu finalizo tudo, a
Hi, thanks to respond. My mount is a project about thingverse, small travel 3d mount, it have two step motors whith planetarium reduction 100/1, but when i finist all, the track speed is very
Hi, thanks to respond. My mount is a project about thingverse, small travel 3d mount, it have two step motors whith planetarium reduction 100/1, but when i finist all, the track speed is very
Hello, Dave and thanks for the quick answer!
I understood about the resistors, but is my exemplary wiring (N) correct?
One more question, sorry, which socket (RJ12) is for the ST4 connector on the
Hello, Dave and thanks for the quick answer!
I understood about the resistors, but is my exemplary wiring (N) correct?
One more question, sorry, which socket (RJ12) is for the ST4 connector on the
"Strange" pointing problems can be caused by not configuring OnStep's site (Latitude, Longitude, UTC Offset) and Time correctly.
If those are correct and the motion still isn't right OnStep's Config.h
"Strange" pointing problems can be caused by not configuring OnStep's site (Latitude, Longitude, UTC Offset) and Time correctly.
If those are correct and the motion still isn't right OnStep's Config.h
The resistor networks are 2.2K (2K would also work). You can use discrete resistors by tying one end of each to the common pin (pin 1... the square pad) and then then other ends into the individual
The resistor networks are 2.2K (2K would also work). You can use discrete resistors by tying one end of each to the common pin (pin 1... the square pad) and then then other ends into the individual
Hello Khalid, thank you for pointing that out. Honestly, I'm not familiar with this kind of schematic. Unfortunately I only have normal 4.7K resistors. How do I have to connect them instead of the
Hello Khalid, thank you for pointing that out. Honestly, I'm not familiar with this kind of schematic. Unfortunately I only have normal 4.7K resistors. How do I have to connect them instead of the
