3.97inch 16BIT Module OTM8009A SKU:MRB3971

== Product Picture ==
 
==Product Description ==
* 3.97-inch color screen, support 16BIT RGB 65K color display, display rich colors
* 800x480 resolution for clear display 
* 16-bit parallel bus transmission for fast transfer speed
* Supports ALIENTEK STM32 Mini, Elite, WarShip, Explorer, and Apollo development boards for direct plug-in use
* Support for touch function
* Support SD card function expansion
* Provides a rich sample program for STM32 and C51 platforms
* Military-grade process standards, long-term stable work
* Provide underlying driver technical support
==Product Parameters ==
Name 	Parameter
Display Color 	16BIT RGB 65K color
SKU 	MRB3971
Screen Size  	3.97(inch)
Type 	TFT
Driver IC 	OTM8009A
Resolution 	800*480 (Pixel)
Module Interface 	16Bit parallel interface
Active Area  	51.84x86.40(mm)
Module PCB Size 	59.18x111.51(mm)
Operating Temperature 	-20℃~60℃
Storage Temperature 	-30℃~70℃
Operating Voltage 	3.3V/5V
Power Consumption 	TBD
Rough Weight(Package containing)	No touch: 50 (g) / With touch: 62 (g)
==Interface Definition ==
The module hardware supports 8-bit and 16-bit parallel port data bus mode switching (as shown by the red box in Picture 1 above), as follows:
:Solder R3 and R4 with 0Ω resistor or short circuit directly, and disconnect R2 and R6: select 16-bit data bus mode (default), use DB0~DB15 data pin 
:Solder R2 and R4 with 0Ω resistor or short circuit directly, and disconnect R3 and R6: select 8-bit data bus mode, use DB0~D7 data pin 
Number	Pin Label	Description
1 	CS 	LCD reset control pin( low level enable)
2 	RS 	LCD register / data selection control pin(high level: register, low level: data)
3 	WR 	LCD write control pin
4 	RD 	LCD read control pin 
5 	RST 	LCD reset control pin( low level reset)
6 	DB0 	LCD data bus low 8-bit pin
7 	DB1 	LCD data bus low 8-bit pin
8 	DB2 	LCD data bus low 8-bit pin
9 	DB3 	LCD data bus low 8-bit pin
10 	DB4 	LCD data bus low 8-bit pin
11 	DB5 	LCD data bus low 8-bit pin
12 	DB6 	LCD data bus low 8-bit pin
13 	DB7 	LCD data bus low 8-bit pin
14 	DB8 	LCD data bus high 8-bit pin
15 	DB9 	LCD data bus high 8-bit pin
16 	DB10 	LCD data bus high 8-bit pin
17 	DB11 	LCD data bus high 8-bit pin
18 	DB12 	LCD data bus high 8-bit pin
19 	DB13 	LCD data bus high 8-bit pin
20 	DB14 	LCD data bus high 8-bit pin
21 	DB15 	LCD data bus high 8-bit pin
22 	NC 	Undefined, reserved
23 	BL 	LCD backlight control pin(High level light)
24 	VCC 	Module power positive pin (module has integrated voltage regulator IC, so the power supply can be connected to 5V or 3.3V)
25 	VCC 	Module power positive pin (module has integrated voltage regulator IC, so the power supply can be connected to 5V or 3.3V)
26 	GND 	Module power ground pin
27 	GND 	Module power ground pin
28 	NC 	Undefined, reserved
29 	MISO 	Touch screen SPI bus data input pin
30 	MOSI 	Touch screen SPI bus data output pin
31 	PEN 	Touch screen interrupt detection pin(Low level when a touch occurs)
32 	NC 	Undefined, reserved
33 	T_CS 	Touch screen IC chip select control pin(Low level enable)
34 	CLK 	Touch screen SPI bus clock control pin
==How to use on STM32 development board ==
This module is compatible with the ALIENTEK STM32 development board. The specific usage is as follows:
*Step 1: Download the test program
# Download the STM32 Mini development board IO emulation or other development board FSMC test program from the Program Download column (only these programs support the STM32 development board in-line)
# You can also download the standard routines that come with the punctual atomic STM32 development board
# For a description of the relevant test procedures, please refer to the test program documentation in the package
*Step 2: Connect the STM32 development board
# Find the TFTLCD interface on the development board, connect the module pins and interfaces, and then plug them directly into 
::the interface(for the connection method, please refer to the instructions of the ALIENTEK STM32 development board)
*Step 3: Compile and download the program to the development board
# Compile and download the program you need to test to the STM32 development board（ Don't know how to compile and download?）
*Step 4: Observe the running of the program
# After the program is finished, observe the running status of the program. If it can be displayed normally, the program runs successfully.
==Program Download ==
* 3.97inch 16bit Parallel-Port Module package
==Product Documentation ==
* 3.97inch 16bit Parallel-Port Module User Manual
* 3.97inch TFTLCD Specification
* 3.97inch 16bit Parallel-Port Module Size Picture
* 3.97inch 16bit Parallel-Port Module Schematic
* 3.97inch 16bit Parallel-Port Module LCD Schematic and PCB Package Library
* Driver IC OTM8009A Data sheet
==Reference Materials ==
* C51 Keil and stc-isp software use illustration
* STM32 keil software use illustration
* PCtoLCD2002 software use illustration
* Image2Lcd software use illustration
* Chinese and English display modulo settings
==Common Software ==
* PCtoLCD2002
* Image2Lcd
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