open-smart 2.2 tft lcd connection price

In this Arduino touch screen tutorial we will learn how to use TFT LCD Touch Screen with Arduino. You can watch the following video or read the written tutorial below.

As an example I am using a 3.2” TFT Touch Screen in a combination with a TFT LCD Arduino Mega Shield. We need a shield because the TFT Touch screen works at 3.3V and the Arduino Mega outputs are 5 V. For the first example I have the HC-SR04 ultrasonic sensor, then for the second example an RGB LED with three resistors and a push button for the game example. Also I had to make a custom made pin header like this, by soldering pin headers and bend on of them so I could insert them in between the Arduino Board and the TFT Shield.

Here’s the circuit schematic. We will use the GND pin, the digital pins from 8 to 13, as well as the pin number 14. As the 5V pins are already used by the TFT Screen I will use the pin number 13 as VCC, by setting it right away high in the setup section of code.

I will use the UTFT and URTouch libraries made by Henning Karlsen. Here I would like to say thanks to him for the incredible work he has done. The libraries enable really easy use of the TFT Screens, and they work with many different TFT screens sizes, shields and controllers. You can download these libraries from his website, RinkyDinkElectronics.com and also find a lot of demo examples and detailed documentation of how to use them.

After we include the libraries we need to create UTFT and URTouch objects. The parameters of these objects depends on the model of the TFT Screen and Shield and these details can be also found in the documentation of the libraries.

So now I will explain how we can make the home screen of the program. With the setBackColor() function we need to set the background color of the text, black one in our case. Then we need to set the color to white, set the big font and using the print() function, we will print the string “Arduino TFT Tutorial” at the center of the screen and 10 pixels  down the Y – Axis of the screen. Next we will set the color to red and draw the red line below the text. After that we need to set the color back to white, and print the two other strings, “by HowToMechatronics.com” using the small font and “Select Example” using the big font.

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.

Description:This is a 2.2 inch TFT touch screen expansion board using standard Ar duino Shield interface and it has good compatibility.It integrates a 2.2-inch touch screen, I2C temperature sensor, TF card holder, level conversion circuit, and the secondarydevelopment is easy.With GPRS module, you can design your Ar duino phone.With NFC reader module, you can create access control systems with the photos show.With voltage and current sensor, you can make oscilloscope.- Can use it directly to display characters, graphics and BMP format images. And touch controlling is available;- Compatibility: As the SD card is connected to SPI pins of ICSP interface, compatible with UNO R3 / Mega2560 / Leonardo- Touch screen type: resistive touchscreen.- Touch Pen: length is 9cm;- Resolution: 176x220;- Display size: 2.2 inch;- Operating voltage: 5V;- Logic level: 5V / 3.3V;- On-board 3.3V / 300mA regulator circuit;- Operating current: the maximum is 150mA- Use the A0 ~ A3 pins, D4 ~ D13 pins. And I2C interface, D0 / D1 / D2 / D3 is available, please refer to the product schematics for the details.- It leads out the I2C interface of Ar duino board, it can connect to the DS1307 RTC module, BMP280 barometric pressure sensor module, AP3216 digital ambient light proximity sensor module.- It leads out the RX / TX interface, it can connect to serial ESP-07 / ESP-12 Wi-Fi module, serial MP3 module, serial GPRS module.- Onboard Micro SD slot, support Micro SD / TF Card;- Onboard LM75 temperature sensor: default I2C address is 0X48, scale is -55 ~ 125C- Very suitable for digital photo frame, oscilloscope, function generator, detection system monitorPackage included:1 x 2.2 inch TFT LCD Shield1 x Touch Pen