ESP8266 Community Forum

- Sat Jul 02, 2016 1:50 pm #50096 Hello
Please help connect the LCD screen TFT 3.5 inch ili9481 to esp8266-12E.
This display:

DSC_0024.JPG

The following output:

3.52560sch.pdf

I'm not completely experience with these displays. I tried to connect the display, but the effect such that
the screen is lit in white, and nothing more. I tried different libraries UTFT from github but I'm not sure if the first well it strapped and secondly, whether correctly I configure the program.

Adding clearer photo:

IMG_20160119_200405571.jpg

- Sun Jul 03, 2016 5:15 pm #50144 The interface is set up for 16bit parallel. Now some controllers allow for an SPI interface as an alternative. Next it has a touch screen controller and an SD interface. The 12E will not have 3 cs lines available ( due to lack of GPIO pins) unless the esp8266 is run in DIO mode and pins are lifted inside the metal can. The LCD screens are very dependent on a correct init function and on the timing of the init function. Why LCD screens aren't manufactured with the init code embedded in ROM beats me but the application must get the init of the lcd perfect for it to work.

- Mon Jul 04, 2016 12:47 am #50150 How you can run the display in SPI mode ?

- Mon Jul 04, 2016 8:42 am #50165 You will need a new LCD which has a SPI interface, the LCD above is unusable with ESP, unless you add tons of GPIOs using I2C expander, but it would be terribly slow.