2.2 spi tft display module 240x320 ili9341 quotation

ER-TFT022-1 is 240x320 dots 2.2" color tft lcd module display with ILI9341 controller,optional capacitive touch panel with controller FT6236U and resistive touch panel,superior display quality,super wide viewing angle and easily controlled by MCU such as 8051, PIC, AVR, ARDUINO ARM and Raspberry PI.It can be used in any embedded systems,industrial device,security and hand-held equipment which requires display in high quality and colorful image.It supports 8080 8-bit,9-bit,16-bit,18-bit parallel,3-wire,4-wire serial spi interface. FPC with zif connector is easily to assemble or remove.Lanscape mode is also available.

Of course, we wouldn"t just leave you with a datasheet and a "good luck!".Here is the link for 2.2"TFT Shield with Libraries, Examples.Schematic Diagram for Arduino Due,Mega 2560 and Uno.For 8051 microcontroller user,we prepared the detailed tutorial such as interfacing, demo code and Development Kit at the bottom of this page.

A. We are a professional manufacturer, which specializes in TN, HTN, STN, FSTN, VA/BTN monochrome LCD, Micro OLED Screen, Color TFT Display Panels, LED Backlights, LCD Moduleslocated in Shenzhen and Jiangxi.

The provided display driver example code is designed to work with Microchip, however it is generic enough to work with other micro-controllers. The code includes display reset sequence, initialization and example PutPixel() function. Keep the default values for all registers in the ILI9341, unless changed by the example code provided.

4-wire 8-bit Serial Data Interface II is the correct mode to use based on the microprocessor pins available. This mode is closest to standard SPI port operation with a few minor exceptions.

Note that the WR pin becomes the D/CX signal in serial mode. CS is used to initiate a data transfer by pulling it low. At the end of the data transfer, pull the CS pin high to complete the transaction. The timing diagram indicates that you can pull the CS pin high in between the command byte and data bytes within a transfer, but it is unlikely needed if the display is the only device on the SPI bus. To keep things simple, we suggest to leave it low during the entire transaction.

The D/CX pin tells the ILI9341 that the current byte is either command or data. Pull the D/CX pin low when the current byte is a command, and pull high when it is data. The timing diagram indicates only needing to set D/CX on the last bit of a byte, but it is much simpler to just leave it high or low during the entire byte.

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Specifications:Resolution: 240x320Driver IC: ILI9341Input Voltage: 5V/3.3VSize 2.2 inch, It has PCB backplane with power IC, SD card socketLED Numbers 4 LEDs, Driver IC: ILI9341, Color Depth 262K/65KModule Size:67mm(length)*40mm(width)*4mm(thickness), Active Area: 47.5mm(Length)x36.5mm(Width)How to use it?1. use 5v to led pin, 3.3v to vcc and 1k / 1.5k resistor voltage dividers to get it to work. 1k resistor in series from Arduino to tft logic pin, 1.5k from tft pin to ground.2.#define TFT_DC 9#define TFT_CS 10#define TFT_MOSI 11#define TFT_CLK 13#define TFT_RST 12#define TFT_MISO 83.// Use hardware SPI (on Uno, #13, #12, #11) and the above for CS/DC//ILI9341 tft = ILI9341(TFT_CS, TFT_DC);4.// If using the breakout, change pins as desiredILI9341 tft = ILI9341(TFT_CS, TFT_DC, TFT_MOSI, TFT_CLK, TFT_RST, TFT_MISO).Serial monitor output:1-- ILI9341 Test!Display Power Mode: 0x94MADCTL Mode: 0x48Pixel Format:0x5ImageFormat: 0x80Self Diagnostic: 0xC0Benchmark Time (microseconds)2-- Screen fill 18159720Text 921664Lines 8537648Horiz/Vert Lines 1485756Rectangles (outline) 946520Rectangles (filled) 37689232Circles (filled) 5325780Circles (outline) 3725412Triangles (outline) 1944508Triangles (filled) 12525852Rounded rects (outline) 1782700Rounded rects (filled) 40989648

A full color 240xRGBx320 pixel TFT display module with 2.2" diagonal active area. Very small text and images look sharp on this graphic display, with its dense pixel pitch of 0.141 x 0.141 millimeters. The TFT"s 6:00 o" clock viewing direction works well for devices that must be easy to read above eye level without fading, such as signal analyzers or other benchtop laboratory equipment.

With a built-in Sitronix ST7789V or compatible display controller, the logic voltage range of 2.5v to 3.3v allows direct connection to 3.3v processors.

Buy with confidence. Our Logistics department is experienced at sending products anywhere in the world where permitted. This TFT display module has a limited 1-year warranty and free technical support.

So after half a days soldering, I fire up the board and excellent, the ILI9341 is running at a clock speed of 100mhz (not scoped), lightning fast! Dropped the speed to a more reasonable 20mhz and left overnight for a board test (i always do this, as i have lipos connected etc and like to see if there are any heat issues etc after a 24h run). Found no issues the next morning, graphics test still running so powered off the device.

Powered back up after my return from work @20mhz and the graphics test worked fine. Enabled my SD circuitry (solder jumpers), reran the test and both the ILI9341 and SD were both running sweet.

No changes made, powered up on the third day, and nothing but a white screen on the ILI9341? So i say, must have blew the t4 some how. Hot air removed the t4, on goes the new one and again a few runs later and i get a white screen again? Checked all my pin assignments, voltages and they are all good.

I came to the conclusion that as I was forcing the T4 to be powered of of 3v3 as per (https://forum.pjrc.com/threads/64468...V-power-supply) this was somehow messing with the SPI communication. I canned the T4 and designed and built a T4-SAMD51 clone.

I picked up the project again today and de-soldered my SAMD51 T4 clone pcb as I need speed! The T4 would have been perfect, so tried a few code changes, got the screen running in the setup function (static text etc), but as soon as it enters the loop(), you guessed it....white screen. Its as if the t4 is too fast on spi or something, but I have changed the clock speeds down to 5mhz and yield the same results...

To confirm, I had the T4 intermittently working on both the adafruit ili9341 library and the optimised ili9341_t3. I"ve been through 3 T4s and I have 5 different ILI934 displays. (all give the same results, pull ups, no pullups, removed sd circuitry, ran the T4 at 5v I"ve tried it all!)