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Merlin Firmware 020784

Has anyone worked with firmware version 02.07.84 yet? I'm wondering if it is working correctly with Papywizard? I ask because we're starting to get reports, now that this version is being sold, that "go to" commands are not stopping at their target, but instead run on forever. We're also getting the...
by shutterdrone
Wed Aug 29, 2012 6:04 pm
 
Forum: Motorized panohead project: Merlin, Orion & Papywizard
Topic: Merlin Firmware 020784
Replies: 0
Views: 1280

Woody, If you are handy with DIY and can do basic soldering/software, there is no need to buy an MX2. The instructions for making a cable to go from Arduino->Merlin are in the MX2 user guide, and the MX2 source code contains the control library. You could use an arduino and a few resistors to write ...
by shutterdrone
Wed Aug 29, 2012 5:53 pm
 
Forum: Motorized panohead project: Merlin, Orion & Papywizard
Topic: Merlin Speed/Controller problem
Replies: 13
Views: 5912

Guzzzt, Just wanted to drop by and personally thank you for your work on the Merlin library. I don't know if you noticed, but the MX2 firmware is using a modified form of your library (we linked you on the documentation page, and also linked the modified library) - I had to change a few things to ma...
by shutterdrone
Wed Mar 02, 2011 4:08 am
 
Forum: Motorized panohead project: Merlin, Orion & Papywizard
Topic: Controlling the Merlin/Orion with Arduino
Replies: 35
Views: 18662

About multi-threading, why don't you use several µ-controllers, one for each axis? Because at that cost, I might as well buy an ARM board. A $30 uC can "truly" handle all the work required on a 3-4 (or even more) axis head in "something like real-time" when it is designed well. The problem arises ...
by shutterdrone
Wed Apr 21, 2010 6:50 pm
 
Forum: Motorized panohead project: Merlin, Orion & Papywizard
Topic: Developing a new controller, Papywizard compatible
Replies: 105
Views: 29535

Panoguy, did you ever figure out how to do the async motor control on the AVR? I couldn't tell from the posts. I wouldn't use something like that "pseudo-threading" library, as the overhead is unneeded for a fairly simple activity. FWIW, I'm doing the same thing currently, and while I don't have (ye...
by shutterdrone
Wed Apr 21, 2010 5:37 pm
 
Forum: Motorized panohead project: Merlin, Orion & Papywizard
Topic: Developing a new controller, Papywizard compatible
Replies: 105
Views: 29535

Greg is correct, the "firmware" only knows how to drive stepper drivers, it is unaware of the gear ratio of your setup, the microstep capabilities of your driver, etc. It is expected that the application configuring it be aware/provide some input from the user about what the physical model of their ...
by shutterdrone
Wed Apr 21, 2010 4:48 pm
 
Forum: Motorized panohead project: Merlin, Orion & Papywizard
Topic: Papywizard and OpenMoco
Replies: 26
Views: 8128

Jones, Just one correction - right now it only works with stepper motors, not servos. Servos, DC motors, etc. will be selectable in the not-so-distant future =) The firmware can either be used to do interactive control of up to 4 axes of motion and a camera, or can be used as a scripting engine, and...
by shutterdrone
Tue Apr 20, 2010 3:23 pm
 
Forum: Motorized panohead project: Merlin, Orion & Papywizard
Topic: Papywizard and OpenMoco
Replies: 26
Views: 8128

... if y'all still want to do your standard control mechanism, I started working on the asynchronous stepper control last night, and I have a path to do it without (hopefully) too many problems in integrating it with the program state logic. A quick question though: do you guys normally do multiple ...
by shutterdrone
Fri Apr 16, 2010 4:12 pm
 
Forum: Motorized panohead project: Merlin, Orion & Papywizard
Topic: Papywizard and OpenMoco
Replies: 26
Views: 8128

I just uploaded new zips for the latest version of everything - so no need to muck with SVN. This version, 0.82, is 'released.' Here's the direct download page for the perl module: http://openmoco.org/node/27 -- I haven't updated the doc on the website yet, but if you just install the module and the...
by shutterdrone
Thu Apr 15, 2010 5:04 am
 
Forum: Motorized panohead project: Merlin, Orion & Papywizard
Topic: Papywizard and OpenMoco
Replies: 26
Views: 8128

It should be totally do-able in that way. If you can also load perl code, there's already an API with every capability mapped to a method, and does all the binary building/communicating with the engine for you. The OpenMoco::Interface::TimeLapse module is pretty simple to use. I'm not terribly famil...
by shutterdrone
Tue Apr 13, 2010 10:55 pm
 
Forum: Motorized panohead project: Merlin, Orion & Papywizard
Topic: Papywizard and OpenMoco
Replies: 26
Views: 8128

All jones generators can be executed locally on aby browser; I'm pretty sure they work on a Nokia. Then, the only thing to do, is a little uploader. How does the openmoco firmware communicate with the host? The host sends binary serial commands, and reads the responses. Depending on which Arduino y...
by shutterdrone
Tue Apr 13, 2010 7:55 pm
 
Forum: Motorized panohead project: Merlin, Orion & Papywizard
Topic: Papywizard and OpenMoco
Replies: 26
Views: 8128

Ok, I think it will require a different way to write the plugin. As I said, I don't have enough time now, so I will put this on my todo list... Understood - it takes time to get through those to-do's (I remind people of that sometimes myself =) To give an idea of how scripting works with it, I crea...
by shutterdrone
Mon Apr 12, 2010 6:49 pm
 
Forum: Motorized panohead project: Merlin, Orion & Papywizard
Topic: Papywizard and OpenMoco
Replies: 26
Views: 8128

Alas, it is slightly different than the systems you've been working with, but some of the compromises may be highly useful for you. Unfortunately, motor move commands are synchronous. You say to move a thousand steps, and the response tells you when it's done. The vast majority of other commands (in...
by shutterdrone
Sun Apr 11, 2010 4:17 pm
 
Forum: Motorized panohead project: Merlin, Orion & Papywizard
Topic: Papywizard and OpenMoco
Replies: 26
Views: 8128

Glad to help in any way I can =) BTW, there's one minor mistake on my part - when I said "the protocol is already encapsulated," I presumed you're using the boards with FTDI driver. Looks like y'all might not be, and instead are using straight uart over serial port. The FTDI uses USB protocol betwee...
by shutterdrone
Thu Feb 18, 2010 12:52 am
 
Forum: Motorized panohead project: Merlin, Orion & Papywizard
Topic: Building a new Merlin/Orion internal controller
Replies: 56
Views: 21509

Hey guys, just chiming in here as I recently hopped on the forums, and it looks like y'all are working on something which I've had a bit of experience with *grin* (not pano, but the motion head software/engine). If you're interested, I have a fully functioning arduino engine for steppers, which coul...
by shutterdrone
Wed Feb 17, 2010 11:26 pm
 
Forum: Motorized panohead project: Merlin, Orion & Papywizard
Topic: Building a new Merlin/Orion internal controller
Replies: 56
Views: 21509

Agreed with Milapse, I've seen nothing about the meade head that would make it easy to use for pano - it's more of a continuous motion head (for tracking targets). I'm noting that some versions allow you to set targets and go to them. I think that may be the only way that you could achieve this goal...
by shutterdrone
Wed Feb 17, 2010 4:25 pm
 
Forum: Motorized panohead project: Merlin, Orion & Papywizard
Topic: Meade DS2000 Support
Replies: 19
Views: 9825

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