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SoliForum - 3D Printing Community → Hacks & Mods → New LCD
Had email from Roy and he said he is finalizing sanguino instructions and will hopefully be posting later this weekend
Finally was able to test the viki last night but had to use adafruit example library. Could not get the liquidtwi2 library to work at all
Have you heard any more about these pending instructions?
It's been a week and still no show. (at least I can't find them?)
Hate to say it but alarm bells ringing for this one.
Hopefully the current adopters are sorted soon.
There are other andruino projects besides Solidoodle that you could use it for.
I'm simply just putting the offer out there if anyone is interested.
I've been trying to get status of the instructions all week but no luck. Last I heard from Roy he was trying out the firmware to make sure everything works
BTW. I was able to get the LCD working with a spare Uno and using the TWI2 Library so at least I know the LCD works. Just waiting on instructions on how to use in the sanguino
There are other andruino projects besides Solidoodle that you could use it for.
I'm simply just putting the offer out there if anyone is interested.
In oz I can get this cheap and from an actual store:
http://www.freetronics.com/collections/ … pad-shield
Plugs straight into an Uno and runs with a few lines of code from their website. There is no way I would pay for a VikiLCD unless I was using it for my printer.
For all you guys here aparantly the viki works for this guys marlin. Might find a way to merge it with the solidoodle marlin. https://github.com/Banjer/Marlin/tree/i2c_lcd/Marlin I don't have a viki to test it but someone might feel ambitious to try it out.
Any further updates? Or should I look at ebaying mine? 
I got a copy of Lincomatic and pin outs from Roy last night that are supposed to work but still have not gotten it to work at this point
Attached is the pin outs and Lincomatic he provided..
CAUTION - Lincomatic Branch does not have all the code for solidoodle.
I have a 2nd Sanguino I am working with just to try and get the LCD working.
Once I get it working, I will see how to implement into Lawsy's marlin build
Very nice! Glad to see someone is working on this. I am completely lost and my viki shipped last week.
THANKS!
Smitty
DAMMIT!!! Tried to solder J4 + J6 per the instructions and the J4 pad came completely off the board. Now I'm screwed..!!
Gonna have to trace by the schematic and see if I can repair somehow.....
Hate when that happens! You are doing what you need to though. Trace it back and solder a wire down the line and jumper it somewhere else.
Smitty
How do you put this thing on the circuitboard?
Just spoke with Roy and he said shorting J4 + J6 might not be necessary and the unit should still work but "not as reliably". he also said some are having issues being caused by an older boot loader on the 1284 mcu upgrade.
Will keep everyone updated as I get more information.
OK was just informed that J4 and J6 are not shorted together. There are two pads for J4 and two pads for J6. Each of these need to be shorted together. So you are shorting J4 (1) and J4(2), J6(1) and J6 (2) like in attached diagram.
A little misleading the way the spreadsheet was written
Finally received my replacement VIKI and got it to run with the Lincomatic branch.
I have seen a couple of pull/merge request on github and debating if I should wait and see if the implementations are done or if I should still continue to disect and try and get the VIKI to work with Lawys's version.
https://github.com/buildrob101/Marlin/c … 470624375d
I'm not a programmer but can usually pick things up easily but there are so many differences between Lincomatic and Lawsy's it's giving me a migraine 
I saw Roy a week ago at the Deezmaker meetup. He said that the latest Marlin release broke Viki support for Sanguinololu and messed up the menus somehow. I don't know if that would apply to Lawsy's or the Lincomatic fork.
Ian,
Roy sent me a copy of fixed Lincomatic and I can get the VIKI working. I am now trying to merge Lincomatic with Lawsy's (the hard way LINE BY LINE).
Hope to make some significant progress this week
Hi, could you possibly share the fixed lincomatic firmware?
Also, when you say you have it working, how far have you got? 
so far I've only got my spare Sanguino to recognize the VIKI.
Here is the Lincomatic version that works with the VIKI - be carefull this version has none of the Solidoodle entries - it's only for testing at this point.
Also attached is a photo showing the basic VIKI connections to the Sanguino.
I have made some progress with implementation into Lawsy's version tonight. I got the Viki to partially work... but it keeps flashing and beeping but display seems to work. Looks like it might be stuck in and UPDATE/REFRESH loop. Need to go back through to see where I screwed up
Will keep you updated
Thanks for the upload. I assume you made no edits before uploading?
For me, this version still has the issue, blank/flickering lcd, no visible menu.
I'm wondering if it is something to do with the connections on the sang board, I noticed you only have the MCU chip on the blank board and it works? Either that or the 'older bootloader problem' perhaps?
I'm not actually a solidoodle user, just trying to get my sanguinololu/Marlin based printer working with Viki, so I'm assuming it should be easier to get this working as it's one less stage. 
Did you short J4 and J6? I made no edits to the attached file it is exactly how Roy provided tome.
Roy did mention there were issues with older bootloaders on the 1284p chips.; When i get home tonight I am going to test on a fully populated Sanguino board but it should have any effect and I will post a short video of the progress I have made
Thanks for the upload. I assume you made no edits before uploading?
For me, this version still has the issue, blank/flickering lcd, no visible menu.
I'm wondering if it is something to do with the connections on the sang board, I noticed you only have the MCU chip on the blank board and it works? Either that or the 'older bootloader problem' perhaps?
I'm not actually a solidoodle user, just trying to get my sanguinololu/Marlin based printer working with Viki, so I'm assuming it should be easier to get this working as it's one less stage.
I hadn't actually shorted them no, as I thought it was unnecessary, but since shorting them it has no effect also.
My Viki is definitely working as the 'hello world' sketch works on my UNO.
I have tried two different ATMega MCU's, both with pre burnt bootloaders though so I have no idea if they are 'old'
I look forward to your educational vid!
Im still waiting on my Viki! Got a ship notification on 4/30/13 and the tracking number still says it never even got picked up from roy. whats that 2 weeks??
Smitty
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