These are nice little displays and the data sheet is relativly understandable. They have a selectable interface with I2C, 9bit SPI, 8Bit SPI and parallel.
You usually search the web for the card that offers your comms flavour of the moment.
For me its easier to get them mounted on boards than solder the displays to your own PCB and this is where the problems begin. Not all boards are the same.
The first board I used is nice in that its mounting fabricator made their design toggle the reset line of the display on start up, so as a result, the reset default values get set up in the displays registers. This design is no longer available on the web.
Same display different mounting fabricator and a problem of garbled text and graphics has to be resolved.
Upshot is a complete rework to my software drver and a new software reset routine, that set all the display registers to the defaults that would be set if the hardware reset line had been toggled.
Time 20 hours, well at least my driver should work with most fabricators displays now?
At least your projects make some progress. I have 2 or 3 that remain at the conceptual stage, continually being subverted by other projects like painting the garage doors. My wife insists that I get my Vitamin D quotient, so summer is a blowout even though the only cool place is the basement where coincidentally the projects are executed.
@Wnderer: Speaking of projects, what happened to the Van Gogh Mosiac with home made ceramic bits?
Arrgghh -- that's the one project people always ask me about. The frame/base is sitting on the wooden chest outside my office -- I have a bunch of new glazes I want to experiment with -- I really need to fire up the kiln and get back to working on that ... but my weekends are now fully booked until the end of August (I only hope I won the lottery this past weekend -- I forgot to check the tickets -- if I did, I'll be able to devote a lot more time to my projects LOL)
@Wnderer: I guess firing up the kiln is more of winter project than a summer project.
I have the kiln sitting on my back deck (it's a concrete deck and it's covered) so I can fire it up anytime -- the fact that the kiln is running at liquid glass temperatures indide means that variations in the outside temperature are largely immaterial.
You all seem destined to end up as I have, with a basement full of projects in stages ranging from completed but abandoned by technological obsolescence to still in the conceptual phase (usually including partial schematics, data sheets, and parts all sitting in a shoebox). Some of mine go back to 1960 or so! I did usually manage to complete my projects in the 1950s.... My big advantage is that as I do not undertake any projects that would entail resuscitating my ancient SW skills, most of the projects you are entangled with would never appear on my list!
Yes, I do seem to be headed in that direction along with significant spill over of parts into the garage. Since I've moved a few times, I don't have anything much earlier than about 2000 or so. I have actually finished a few along the way. The problem is that I can come up with projects far faster than I can do them...
My collection has traveled with me from NJ (where I grew up) to Boston, Chicago, Ft. Lauderdale, Atlanta, Dallas, then back to Atlanta. Very little "triage" in all that over 54 years! Ever since I first became a homeowner, having a large basement has always been a priority for me (except in S. Florida and Texas, where they are non-existent or very rare).
A good friend of mine decided several years ago that what he needed was a stand-alone workshop/shed. His house is on a couple of acres, and he started to doodle some designs and layouts for all his machinery (he has a pretty full collection of metal-working stuff). What the final design turned out to be is a 2000 SF shop masquerading as a garage (for permit purposes) with a garage door on one end and a wide conventional entry door on the side. BTW, he HAS a basement, but it's mostly finished out (he has a fairly large family). He did most of the work himself with some help from extended family, but had a "pro" do the slab foundation. Now THAT is dedication!
@mhrackin: You all seem destined to end up as I have, with a basement full of projects in stages ranging from completed but abandoned by technological obsolescence to still in the conceptual phase...
Actually, most of my projects are progressing rather well, although they do tend to move in "fits and starts" -- I think you will be surprised by the progress I have to show in the next couple of months...
I've got too many as well. The big one is my robot avatar. Rather than progressing, though, it seems to have spun off a number of additional projects. There's my micro-bot (pic.twitter.com/pnP22dJhD3) that was my first pass at 3D printing. My second forray into 3D printing is an axel adaper/wheel hub for the robot avatar (pic.twitter.com/7ZwPgnq2sp).
Max has not only filled his plate, he's added a bit to mine as well. There's the custom Arduino-compatible sensor board. I think I owe him another blog on that subject. The Kickstarter is now sucessfully over, so that's off.
Now, though, I'm trying to back burner a few things and spend most of my time on a custom Arduino-compatible hardware book.
I really want to try out the LEDs on a Papilio that Mike Field just wrote up too. I'd probably have to convert his VHDL to Verilog, though, because I don't know VHDL.
@Tobias: I loved your 3 "crazy" wheel robot and I was hoping to read more (programming, acceleration, ...). Any plans on this ?
Hi Tobias -- the robot is currently on the "back burner" because I have so many other things on the go -- on the other hand, I now have my PIXY computer vision module and pan/tilt stand sitting on my desk calling out to me... plus I have all of the wheels and motors sitting around in my office... As soon as i ger some of my other projects finished, I will return to the robot -- thanks for reminding me