Lcd Font Maker 3 92 Serial Port
We are having a hard time with the code.
I ordered a 240 x 320 pixel 2.2 inch TFT LCD display off of ebay for £3.86 which is dirt cheap compared to similar displays from some of the western companies. The only problem was that there wasn't a guide to how to get it working! When I figured it out I thought I'd make an Instructable for anyone with the same issues. It actually turned out to be quite simple.
This tutorial doesn't show you how to use the SD card functionality.The Ethics: A couple of users have complained that I am using adafruit libraries and I am not supporting adafruit. Luckily for us, Adafruit have a very similar display that they have written libraries for. I have the display which is powered by the ILI9340 driver so I installed that library so I assume if you have a display with the ILI9341 driver it works exactly the same with the other library that I linked. I haven't seen any other drivers used but if you do, I recommend searching the Adafruit libraries on github.You also need to install the Adafruit GFX library regardless of what driver the display uses. Instructions on how you do this are on the github pages linked.EDIT:My arduino IDE updated and it didn't like having hyphens/underscores in folder names of libraries. If you are getting an error message complaining about these characters try removing them from the folder names (but not the names of the.h and.cpp files).
There is an example sketch included with the ILI9340/1 library called graphics test. You have to wire the display up in accordance to the pin definitions there.Originally When I wrote this Instructable I wrote:I'd like to emphasize that this display uses 3.3V logic, and will not work if you use 5V. This is information that I found on some forum somewhere and using it I got my display to workHowever: I now have multiple of these displays from different sellers (and perhaps different factories). I have noticed that some of them also behave using 5V logic.As labeled on my display module, the connections areSCK - Arduino Pin 13 SDO(MISO) - Arduino Pin 12 SDI(MOSI) - Arduino Pin 11 CS - Arduino Pin 10 D/C - Arduino Pin 9 RESET - Arduino Pin 8 LED - 3.3V / 5V VCC - 3.3V / 5V GND - GNDUpload the example sketch and give it a go, the sketch shows you well how to control the display.You may have to fiddle with the voltages for your particular model. There are various options you have here -potential dividers on each pin, level shifters, or simply powering your arduino with a 3.3v supply (this is perhaps the hackiest and can be slightly temperamental). See the comments for details.Also, there is information about how to use the library on.A datasheet can be foundYou may do what you like with this Instructable, without having to contact me first. I still have not get to work the TFT, I have always a white Screen.My connections are:All connections are wiring with a voltage divider (less VCC & LED):arduino pin (5V signals) -1k-display pin (Approx.
Lcd Font Maker 3 92 Serial Port 2
3.3V) -1k8-GNDTFT-Arduino UNO:VCC-3.3VGND-GNDCS-PIN10RESET -PIN8D/C-PIN9SDI(MOSI)-PIN11SCK-PIN13LED-47ohms-3.3VSDO(MISO)-PIN12I'm starting to think is a current issue. Any Suggestions? Or maybe another library?