Simple & Easy-to-Use Serial TFT LCD

Tutorial from Youtube

Review:

A 2.4 inch TFT LCD with serial UART port and easy-to-display picture, characters and graphics with some simple commands.

Buy from:

• Serial TFT

• Serial TFT with Touch

• OPEN-SMART UNO R3

• IO Expansion Shield

Docs:

• OPEN-SMART Google drive

Summary:

This is a 2.4 inch TFT LCD expansion board using standard serial UART interface and it has good compatibility. It integrates TF card holder, level conversion circuit, and the secondary development is easy and simple.

Features:

• Compatibility: compatible with 3.3V / 5V MCU, such as Arduino UNO R3, OPEN-SMART UNO R3, STM32, 51MCU, RPi

• Built-in functions: Only a few commands are needed to display the pictures in the TF card, displaying characters, numbers, graphics.

• Working voltage: 4.5V - 5.5V (onboard 3.3v LDO Regulator), if short the pad VCC to 3V3, you can use 3.1-3.4V.

• Interface logic voltage: 3.3V / 5V compatible(onboard level shift circuit)

• Working current: 90mA (MAX)

• Serial port baud rate: 9600 (default), can use command to modify it to be other values: 19200, 38400, 57600, 115200

• Serial communication format: 8N1

• You can debug the module with the USB to TTL module, such as FT232RL, CH340G module.

• Onboard ATmega328 Series MCU

• Touchscreen type: resistive touchscreen. (If it has touch screen)

• Touch Pen: length is 9cm; (If it has touch screen)

• Resolution: 240X320;

• Display size: 2.4 inch;

• Onboard Micro SD slot, support Micro SD / TF card;

Great for DIY

Step 1:

Download the library for Arduino.

Download the library for Arduino and then you should put the 2 libraries into the Libraries Directory of Arduino IDE.

And the example codes are in the directory: D:\arduino-1.6.5-r2\libraries\OS_SerialTFT\examples

Step 2:

Learn to display characters, numbers, graphics.

Upload the demo code in the directory: D:\arduino-1.6.5-r2\libraries\OS_SerialTFT\examples\graphicstest

Then you can see it displays some words, numbers, lines, circles etc.

Step 3:

Learn to display bmp picture.

Download pictures used in showbmp demo code.rar. And then unzip in your PC and copy all the pictures to the root directory of your TF card. Plug the TF card to the Serial TFT. Upload the demo code in the directory: D:\arduino-1.6.5-r2\libraries\OS_SerialTFT\examples\showBMP

Then you can see it display pictures and its brief introduction.

Step 4:

Paint something (if it has touchscreen).

Upload the demo code in the directory: D:\arduino-1.6.5-r2\libraries\OS_SerialTFT\examples\tftpaint

Then you can paint some words or drawing.

About the Commands to Send

About the Feedback from Serial TFT