Servo Support #13
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At this moment, no timers are used, just delays. Something like this can be added of course, but probably not copy-paste. On Wed, Oct 22, 2014 at 1:32 PM, Twitch notifications@github.com wrote:
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This is for the tool mount defs. Marlin makes use of the servo library that ships with arduino. There is no need to copy-paste code as it is so simple. |
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Servo library uses timer1, so be mindful not to use that one if you plan on using timers. |
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Ok. Just create a new issue for this so it's on the list. I'm still busy with the emergency stop first. Probably I'll have to order a On Wed, Oct 22, 2014 at 2:30 PM, Twitch notifications@github.com wrote:
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This is an issue. My RAMPS board is in the mail. If it gets here before you have got around to it, ill PR. |
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What servo motors are you planning to use? I was looking into it and only found 6 volt or 7.4. But on the ramps board On Wed, Oct 22, 2014 at 2:45 PM, Twitch notifications@github.com wrote:
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IIRC there are servo headers on the ramps board, and with a jumper they can 5V is just enough to power most servos. On Sun, Oct 26, 2014 at 9:24 AM, Tim Evers notifications@github.com wrote:
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Indeed, there is a separate 5 volt circuit. An additional power supply is needed or a voltage converter chip. Op 26-okt.-2014 om 02:32 heeft Twitch notifications@github.com het volgende geschreven:
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It doesnt have a 7805 on the board? On Sun, Oct 26, 2014 at 6:03 PM, Tim Evers notifications@github.com wrote:
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Ah, it seems it does have one. That should work for testing. I'll borrow a servo from a RC enthusiast. Op 26-okt.-2014 om 08:04 heeft Twitch notifications@github.com het volgende geschreven:
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Two bucks on ebay for a 9g one. But yeah, either works. Servo intensive applications should use their own power regulator though On Sun, Oct 26, 2014 at 7:21 PM, Tim Evers notifications@github.com wrote:
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Well, it's moving. I had to add an extra power supply for this one. It On Sun Oct 26 2014 at 9:23:30 AM Twitch notifications@github.com wrote:
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Awesome, I got my new Pi B+ setup yesterday and was able to turn on my Can you make the video public? On Thu, Nov 6, 2014 at 12:57 PM, Tim Evers notifications@github.com wrote:
Rory Landon Aronson http://www.roryaronson.com |
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Video access changed. That endstop is strange. I tested it here again and it works correctly. On Thu, Nov 6, 2014 at 10:31 PM, Rory Aronson notifications@github.com
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Nice, looks good! What do you think is a good first use case for it? On Thu, Nov 6, 2014 at 2:05 PM, Tim Evers notifications@github.com wrote:
Rory Landon Aronson http://www.roryaronson.com |
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Don't know. You can use it to aim a sensor to left/right/forward/backward and aiming a sprayer nozzle. Also for speed controlled servo motor with a valve for distributing solid fertilizer (pellets dropping on spinning disc). The simplest is just raking leaves (just a spinning brush) with controlled speed. Op 6-nov.-2014 om 23:21 heeft Rory Aronson notifications@github.com het volgende geschreven:
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Everything. Grabbers, sensor orientations, cutters, 4dof, etc.
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Hi,
Did some research after our discussion in the comments last night.
Turns out that analogWrite cannot be used for servos, as the pulse widths and duty cycles are incompatible.
http://forum.arduino.cc/index.php/topic,5701.0.html
So I had a look around at how the merlin 3d printer firmware does it. They simply use the arduino servo library:
https://github.com/ErikZalm/Marlin/blob/Marlin_v1/Marlin/Marlin_main.cpp#L495
The Gcode they use is:
Do you reckon we can add this?
PS: What timers on the arduino are already used?
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