Yeah I have done all that but only with the 2.4" screen - I'll have go with the 2.2" one. The screen is definitely in full working order as the Utouch calibration sketch ran perfectly - which would also indicate the polarshield is good too, wouldn't it?
Just a little note, the sample calibration values in UTouchCD.h for the 2.4" v2.1 screen have a typo, third one is defined as CAL_Z when I think that should be CAL_S?
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Re: Touchscreen expired from this mortal coil
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Re: Touchscreen expired from this mortal coil
That it works ok for the calibration routine indicates that the polarshield is ok too - I believe that is true, and it's the rationale I've used.
I might try to do some more experiments around the timing of the init_touch stuff ... Because it is impossible to predict when the touch does work, and when it doesn't, it's really hard to do this kind of test.
You're probably right about the CAL_Z thing - where is the CAL_Z? Is it in the copy of UTouchCD.h that I've got in the code bundle?
Thanks for digging into this,
sn
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Re: Getting started
The motorshield examples should work ok on the seeeduino. You'll have to set board type to "Duemilanove", but that's all. The motorshield examples are small, and are well used.
Just a thought: Does the polargraph_server_a1 firmware behave any differently if the motorshield is disconnected? So if you use the seeeduino on it's own? I'm less convinced that it's the board, now!
An UNO clone will be better - more standard, but lets try the above before having to shell out more money.
sn
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Re: Touchscreen expired from this mortal coil
I wonder if my Arduino is the problem - only way to test that is to get another one, which I don't really fancy!
The file in question is in the latest release, in the 2.0 zip. Arduino-source/libraries/utouch/UTouchCD.h I think.
Beardy
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Re: Touchscreen expired from this mortal coil
I reckon if the thing works at all, then it's not an arduino _or_ a shield issue.
I know you've tried the calibration sketch, have you tried either of the other UTouch sample apps? There's a buttons one, and a paint one.
Oh yes, I see the CAL_S. Duh. Good spot.
sn
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Re: Touchscreen expired from this mortal coil
Wrote up a little relating to this at http://www.polargraph.co.uk/2015/10/touchscreen-issues/.
Doesn't really solve your issue, but might be helpful to anyone following this.
sn
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Re: Wrong NEMA-17 motor?
I just bought two Adafruit 350ma motors. They seem to work well with the V1 motor shield. Thanks for your thoughts
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Re: Getting started
Hi Sandy,
the seeeduino board works on ist own and i can run test examples (blinking lights) on them. before i had the motorshield Version v1 uploaded on the board and there it indicated ready in the Serial Monitor plus it picked up the polargraph in the program Controller. When i tried drawing lines or any other functions the Motors did not work. Ist only then that i realized i actually Need to install motorshield v2 and thats where i am stuck now.
easiest Thing and quickest i think would be to buy a new board. You suggesteda UNO clone, any in particular. thanks
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Re: Getting started
is this board better suited?
Arduino UNO Platine 65139
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Re: Touchscreen expired from this mortal coil
I'll try the other sample apps, but here's an update: I managed to get a set of calibration values that sorta worked - all the buttons worked if you hit the top right corner of them with a stylus. Huzzah! Trouble is, the unit doesn't respond to anything except pen lift/drop - which is the same as when controlling via usb, so it's beginning to look like it might well be a P-shield or Arduino issue. I'll update again when I've run the test apps.
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Re: Touchscreen expired from this mortal coil
Right, I've run the example apps, and at least it's consistent! I checked the values from your post (it's what I had from the calibration sketch) and uploaded. The button app is exactly the same as the Polargraph app - every thing is offset up and to the left, i.e. when I hit '1' nothing happens, when I hit '2', 6 flashes red and 6 is output, '3' gives 7, '4' gives 8 etc.
Same with the painting app, though that's a bit weirder as all inputs are duplicated with a similar offset but also in a different colour.
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Re: Touchscreen expired from this mortal coil
I'm pretty puzzled about it. There's so little on the polarshield that actually does anything that I almost can't think what could be causing the issue. It's just resistors. And even more odd that it's something that changes over time - I mean it _used_ to work ok, but now it doesn't.
sn
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Re: Getting started
Sorry I don't understand what it is that you've tried.
I tried building polargraph_server_a1 for the adafruit motorshield v2, and there isn't enough space on the device to upload it.
Turning off pixel drawing, the firmware builds ok, uploads to a seeeduino v2.21, and runs ok, emitting READY.
I tried building the firmware with the adafruit v1, and have the very same problem.
How did you build? Which features did you turn on or off?
An Arduino UNO is what the code is targetted at now.
sn
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Re: Wrong NEMA-17 motor?
Excellent Krummrey, good luck with the project!
sn
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Re: Touchscreen expired from this mortal coil
Yiiiiiiipppppppeeeeee! I've got it working :) I dug up a copy of the 1.10 software package from backup and used Xloader to upload the image and whaddya know? It's a winner!
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Re: Touchscreen expired from this mortal coil
Ha ha! Pulled it out the bag there :)
So anyway, that's weird. Some combination of configuration that we hadn't tried I guess?
sn
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Re: Touchscreen expired from this mortal coil
Yeah, I've tried several builds now and that's the latest that works, so I'm guessing my particular polarshield/Arduino combo has some kind of aversion to the later releases. No biggie, I'm not missing too much I think. Thanks for your patience and help with this anyhoo :) and now.. Drawing!
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Re: Wrong NEMA-17 motor?
Today I got it to draw today!![Image]()
Polargraph - First Test
A few things need to be ironed out. The square isn't straight yet and the gondola needs some more love. But it draws. Thanks Sandy for your great project and your continued support
Polargraph - First Test
A few things need to be ironed out. The square isn't straight yet and the gondola needs some more love. But it draws. Thanks Sandy for your great project and your continued support
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Re: Wrong NEMA-17 motor?
Good work!
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Controller Documentation
Now that my Polargraph is moving I'm trying to figure out how to draw with it. The initial documentation of the controller seems a little outdated. The best I found is here:http://gontarczyk.org/gs/polargraph/polargraph-controller/
But even that one doesn't cover everything. Is there some place that has all the current featured explained? Is that something that we as the community could help with?
The advantage of being a beginner is that I have tons of questions that such a documentation should answer. ;)
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