NoticeITDB02-2.2S/zh-cn
From ITEAD Wiki
Contents
概述
ITDB02-2.2S 是一个2.2inch SPI TFT LCD屏幕模块，分辨率为320X240，262K种颜色。LCD模块的控制芯片为ILI9341，它的接口是SPI的，需要6根线（SCK,MISO,MOSI,CS,D/C,RST）来控制。而且，这个模块还包含了micro SD卡接口。
购买 ITDB02-2.2S
Features
- Compatible to 3.3/5V operating level
- Integrated with an micro SD card slot
- Support IO/PMW to control the backlight
Specifications
| PCB size | 41mm X 68mm X 1.6mm |
| Power supply | 5V DC |
| Driver IC | ILI9341 |
| Resolution | 320*240 |
| LED numbers | 4 LEDs |
Electrical Characteristics
| Parameter | Min. | Typical | Max. | Unit |
| Power voltage | 4.5 | 5 | 5.5 | VDC |
| Input voltage VinH (Target Voltage = 3.3V) | 3 | 3.3 | 3.6 | V |
| Input voltage VinH (Target Voltage = 5V) | 4.5 | 5 | 5.5 | V |
| Input voltage VinL | -0.3 | 0 | 0.5 | V |
| Current Consumption | - | 40 | 80 | mA |
Hardware
Pin Map
| Pin | Type* | Description |
| VCC | P | 5V Power supply pin |
| GND | G | Ground |
| SCK | I | SPI SCK |
| MISO | O | SPI MISO |
| MOSI | I | SPI MOSI |
| CS | I | Chip Select for TFT |
| D/C | I | Command or parameter select |
| RST | I | RESET signal for TFT |
| LEDA* | I | Backlight control pin |
| SD_CS | I | Chip Select for SD |
- Type: P--Power supply; G--Ground; I--Input; O--Output.
- LEDA: When LEDA is set as high electronic level, the backlight turns on. When it's set as low electronic level, the backlight turns off.
Instruction
Display the image from micro SD card
- download the library from this link: https://github.com/adafruit/Adafruit_ILI9340 , then extract it into the directory \arduino\libraries
- copy the image woof.bmp from the directory Adafruit_ILI9340\examples\spitftbitmap to your SD card, then plug the card into the SD card slot on ITDB02-2.2S LCD module
- Use arduino IDE to open spitftbitmap.ino in the directory Adafruit_ILI9340\examples\spitftbitmap then upload it to UNO main board. Select 5V electronic level in the 2.2S LCD module, then use dupont lines to connect UNO and LCD module according to the table as below:
| 2.2S pins | UNO pins |
| VCC | 5V |
| GND | GND |
| SCK | D13 |
| MISO | D12 |
| MOSI | D11 |
| CS | D10 |
| D/C | D9 |
| RST | D8 |
| LEDA | 5V/3V3 |
| SD_CS | D4 |
- Power UNO main board, a picture of dog showed on the display.
Control LEDA backlight via PWM pins
- Use arduino IDE to open the demo 0.1Basics\Fade, then upload it into UNO
- Connect ITDB02-2.2S module to UNO according to the table as below:
| 2.2S pins | UNO pins |
| VCC | 5V |
| GND | GND |
| LEDA | D9 |
- Power UNO main board, you will see the backlight of display turn form dark to light circularly.
Download
Schematic--File:sch_ITDB02-2.2S.pdf
