After an evening of deciphering the dang thing, I finally got a TFT 2.8" w/ Touch controller up and running … Three power wires, 1 back light control wire, for the TFT: 16 data lines, and 4 control lines, for the touch controller: 5 control lines … for a grand total of 29 individual wires. Sheeeeit. This was a purchase for the reflow oven. The firmware is mediocre at best, so I’m going to rewrite it, and retrofit the thing for proper convection … so I decided, why not an updated and higher resolution screen as well. (Yes, the screen can be driven with less wires, however that would be a slower mode, slower refresh, which won’t fly with me.)
Awesome! Anything else needed other than an Arduino to get it working? could be the new interface for my SousVide cooker 
Found this - similar/same?
http://www.aliexpress.com/item/3-2-TFT-LCD-and-Shield-for-Arduino-DUE-with-SD-Touch-Control-TAIJIUINO-DUE/1976052660.html
I was going to throw one of those on my reflow too… But the one I got from ITead suffered badly if the timing changed or you glitches i2c at all… In the end I just stayed ghetto and used an LCD shield with its 4 + 2 setup. Just had too much hassle keeping it looking right with the TFT while also managing two MAX31855s streaming to the mega while also doing PID via SSRs to the dual elements.
We should compare notes some time…
@Mike_Thornbury Any AVR/ARM with enough memory will do. While you can trim the code (specifically the fonts) to fit on a 32K AVR, it’s best to use something bigger like the ATmega2560. Mine’s from SainSmart, but it looks to be the same, although they are made with many different drivers.
@Adrian_Carter I’m using this one configured with a 16-bit data bus as opposed to I2C. It’s faster that way. But that also means having a bunch of wires connected like you see in the picture. Ultimately I’ll be building a new controller anyway so it doesn’t really matter to me. I won’t know how it will behave till I connect the other stuff and see what happens. That’s going to be a fun (weekend) experiment.
are your poi going to have a color screen?!!?
Oh yes! I’m going to do away with all LEDs and just use one of these! After all its much MUCH higher resolution than I can achieve with LEDs in such a compact form factor. When will you do the same with your hoops??
@Ashley_M_Kirchner_No You think you have troubles!
I’m just trying to get one working with a Teensy 3.1 and FreeRTOS.
Can’t believe they sell these displays for 2 quid each.
They’re cheaply made, and made by the thousands. There are several different ICs that are being used as well. So yeah, flooded market means lower cost.
@Adam_Sharp 2 quid? Where, please???
@Mike_Thornbury Ebay, there are a couple of suppliers in the Philippines. Postage can be a downer, but I bought 25 of them and he wavered the postage after some negotiations. Took about 2 weeks to arrive in the UK.
Poi with flexible LCD screens would be fucking mind blowing
a) Not bright enough, b) you have to make the pixels large enough to be seen, at which point you may as well use regular LEDs.