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Forum section: electronics / beginners

author: The_Almighty_Bacon_Lord
author_rank: Contributor
timestamp: February 25, 2018, 01:20:40 am
content: Delete Delete Delete

author: Peabody
author_rank: Super Contributor
timestamp: February 25, 2018, 02:37:58 am
content: The schematic is available on the JYETech website. But I doubt this would work without new firmware to deal with the additional resolution, and probably a revised circuit as well.

author: newbrain
author_rank: Super Contributor
timestamp: February 25, 2018, 07:59:39 pm
content: The used display isthis one.It's a typical 128x64 LCD, with aKS108controllerThe interface is the classic 8bits + register select + R/W, similar to the HD44780 one, but with a different set of commands.LCDs with a similar physical interface (8bits + control signals) can be found in many sizes can be found, but with different controllers (tipically anxx6963for non TFT ones).Peabody doubts are well justified, there is no way an higher resolution display would work without changes to the firmware, even for displays with the same command set.Since, AFAICS, JYETech does not provide the source code, it would be quite hard to make these changes.If you are willing to rewrite the software form scratch, you can adapt to more or less any display...but consider also the limitations of the ATmega64.Is it worth the effort?Maybe as a learning exercise, I myself did something similar forthis boardsome time ago.

author: danadak
author_rank: Super Contributor
timestamp: February 28, 2018, 02:16:01 am
content: If you do this, update firmware, select new LCD, try to get atransflective LCD with LED backlight. That way its direct suncapable. Kyocera makes great transflectives, but pricey.Pay attention to viewing angles as well.Regards, Dana.

author: Brumby
author_rank: Unknown
timestamp: February 28, 2018, 04:18:18 am
content: This would be no easy exercise - even for someone who knew how to do it.I would be rather hesitant suggesting this as a project - unless someone wasreally,reallykeen on tackling it.This comment, however, makes me think you are going to be biting off far more than you can chew:Quote from: The_Almighty_Bacon_Lord on February 28, 2018, 01:34:23 amJust the basics of programming can be a challenge, but when you get into time critical stuff - like an oscilloscope - you may find that if you get your changes to work, that they just run too slow or have other timing problems.Nevertheless, if you DO go for this and get it to work well, you will have gained knowledge and experience that will serve you well. However, I would not expect someone who actually started employment in that sort of tech area to have that level of skill in under 2 years.

author: newbrain
author_rank: Super Contributor
timestamp: February 28, 2018, 08:00:47 am
content: Quote from: The_Almighty_Bacon_Lord on February 28, 2018, 01:34:23 amHow did I manage to miss it?The provided source is a "Learning Edition" with the following limitations:QuoteThey are not too serious, forlearning, the only crippling one is 1).Moreover, the screen routines are segregated in a single file with some provision for parametrization.As Brumby says, though, if you have never programmed at all, especially embedded code, you'll be up to a good dose of frustration.Maybe it's a project to shelve for the moment, while you work your way through the embedded programming word.It depends, of course, if programming is something you have an interest for, even if nowadays, apart from pure analogue stuff, it's very difficult to keep a distance from programmable HW of some sort..