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2.8" Touch Screen TFT LCD with all interface

US $12.00
Always Free Shipping
  • Model: HY28B
  • Shipping Weight: 50g
  • 7164 Units in Stock

Description

LCD Controller ILI9325
Touch Screen Controller ADS7843 or XPT2046
LCD Type TFT
LCD Interface SPI & 8-bit & 16-bit
Touch Screen Interface SPI
Backlight LED
Colors 65536
Resolution 320*240
Pin pitch 2.00 mm

HY28B Pin Description

PIN NO SYMBOL DESCRIPTION FUNCTION
1 5V_IN 5V power supply When powered from 5V supply,
Pin 20 & Pin 21 ( 3V3_IN & 3V3_OUT ) provide 3.3V output.
2 GND Ground Power Ground
3 D10 Data bus D10
4 D11 Data bus D11
5 D12 Data bus D12
6 D13 Data bus D13
7 D14 Data bus D14
8 D15 Data bus D15
9 D16 Data bus D16
10 D17 Data bus D17
11 LCD_CS & CS LCD chip select Low active
12 RS Instruction/Data register selection RS = 1 : Instruction Register
RS = 0 : Data Register
13 LCD_SCK & WR LCD SPI Clock & Write connects to SPI SCK & WR = 0, RD = 1
14 RD Read WR = 1, RD = 0
15 RESET Reset the controller chip Low active
16 LCD_SDO LCD SPI data output connects to SPI MISO
17 LCD_SDI LCD SPI data input connects to SPI MOSI
18 NC Not connect Not connect
19 GND Ground Power Ground
20 3V3_IN 3.3V power supply 3V3_IN = 3V3OUT, When powered from 3.3V supply,
5V_IN keep NC.
21 3V3_OUT 3.3V power supply 3V3_IN = 3V3OUT, When powered from 3.3V supply,
5V_IN keep NC.
22 GND Ground Power Ground
23 D0 Data bus D0
24 D1 Data bus D1
25 D2 Data bus D2
26 D3 Data bus D3
27 D4 Data bus D4
28 D5 Data bus D5
29 D6 Data bus D6
30 D7 Data bus D7
31 NC Not connect Not connect
32 TP_CS Touch screen chip select Low active
33 TP_SCK Touch screen SPI clock connects to SPI SCK
34 TP_SDI Touch screen data input connects to SPI MOSI
35 TP_SDO Touch screen data output connects to SPI MISO
36 TP_IRQ Touch screen interrupt Low level while the touch screen detects pressing
37 NC Not connect Not connect
38 NC Not connect Not connect
39 GND Ground Power Ground
40 BL_CTRL Backlight brightness adjustment Control the backlight brightness via PWM

HY28B Interface Mode Selection

Note 1 = open, 0 = short
IM2 IM1 IM0 Interface Mode
0 1 0 16bit interface D[17:10], D[07:00]
0 1 1 8bit interface D[17:10]
1 0 0 Serial Peripheral Interface (Default SPI)
1 0 1 Serial Peripheral Interface (SPI)

Document

WIki Page for Raspberry PI
HY28B dimension.pdf

HY28B schematic.pdf
ILI9325 datasheet.pdf
HY28B PCB(Protel & AD Format).lib
HY28B for SPI interface example source code.rar
HY28B for 16bit interface example source code.rar


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