HX8347 LCD from eBay
Good news everyone! I finally got the LCD I bought from eBay last year working. A nice little board featuring a 320×240 TFT LCD, HX8347 controller with a touch screen and an sd card slot. Code was also provided, that ported to a pic18F4580 rather easily, that is once power requirements were satisfied. Turns out the board also has a regulator that needs to be a minimum of 4V. So, until a few days ago I was thinking that since the data pins are 3.6V max, the power must be as well. At least I didn’t fry it, but things don’t work when they get too little voltage.
Now that I can display shapes, text and 65k worth of colors, the fun can begin. However, that fun will probably have to come out of a different microcontroller. Just filling the screen with one or all colors takes some time and text is updated rather slowly. I’m only running the pic with it’s internal 8MHz clock, but would need to use 5V for the 20MHZ resonator. Most of the microcontroller’s pins are used, so this may be a good time to upgrade.
Next up will be the touchscreen. I’ve already have some result, but need to be analyzed for any formal announcements. Also, I need to find someplace to post code…