2.4 tft lcd display video from sd card brands

There are many tutorials on Arduino shields for 2.4 inch TFT LCD displays. In this road test I apply different tutorials to check the performance and issues of this specific shield: AZ-Delivery 2.4 inch TFT LCD display with resistive 4-wire touchscreen and an integrated SD card reader.AZ-Delivery 2.4 inch TFT LCD display.

TFT LCD is a variant of a liquid-crystal display (LCD) that uses thin-film-transistor (TFT) technology. That improves image quality, better contrast and addressability.

Depends on the needs of your project. Arduino UNO processor frequency is low. With the Arduino UNO full-color TFT LCDs are suitable to display simple data and commands. The TFT controller used cannot switch internal display RAM, so you can"t use the double buffer technique for animations but still you can only re-draw small sections of screen.

Given the limitations of the Arduino UNO the bigger the display the worse the performance. The size of this display is adequate to meet that compromise between number of pixels, display area and capabilities of the Arduino UNO.

This module consumes most of the resources available in Arduino UNO. This is not a limitation of the module itself. In return, using a parallel interface allows you to quickly update the image. If you want to take advantage of all its functionality (LCD + touch screen + SD card), only pins 0 and 1 (RX and TX, respectively) and pin 19 (A5) remain unused. If the SD card is not used, pins 10, 11, 12 and 13 are additionally available. With a suitable layout, some SPI devices could be connected even if the SD card is used.

The module arrived well packed and in perfect condition. The board comes in a sealed antistatic bag, with protective foams to prevent the terminals from bending, and all this wrapped with a bubble bag and inside an individual cardboard box. The label on the antistatic bag indicates the controller is an ILI9341.

The PCB silkscreen indicates the main function of each pin, the labels are easy to read, although it does not show labels for the touch screen pins:Pin 9 - Touch X+ / LCD_D1

The SD card reader is very well located between the USB connector and the power connector, it does not touch either of them as it happens in other lcd tft shield modules and it is easily accessible to insert and remove the SD cards.

2x74LVC245A Octal Bus Transceiver With 3-State outputs. This octal bus transceiver is designed for 1.65-V to 3.6-V VCC operation. The LVC245A is designed for asynchronous communication between data buses. The device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so the buses effectively are isolated. Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of this device as a translator in a mixed 3.3-V/5-V system environment. This chip solves the problem of how to interface 3.3V logic devices to a 5.0V logic chip such as the Arduino. Most 3.3V devices do not like being run with 5V signals and can be damaged or flaky. The 74LVC245 is designed so that even when it runs at 1.8V, it still happily accepts 5V signals in one pin and converts it to a lower logic level on the opposite pin. It has 8 pipes it can convert but it won"t work with bi-directional/pull-up based devices such as I2C or 1-Wire. It does work great for SPI, Serial, Parallel bus, and other logic interfaces.

If you want to take advantage of all its functionality (LCD + touch screen + SD card), only pins 0 and 1 (RX and TX, respectively) and pin 19 (A5) remain unused. If the SD card is not used, pins 10, 11, 12 and 13 are additionally available. With a suitable layout, some SPI devices could be connected even if the SD card is used.

Includes a resistive 4-wire touchscreen (touchpad). The touch screen is attached on the surface of the display. Touch screen needs two analog inputs and two digital outputs. It connects through 4 wires, which share arduino pins 8, 9, A2, A3 with the ILI9341 driver. So you can"t write to LCD display and read the touch screen in the same time. I. Driver chip is XPT2046.

The resistive touch screen does not appear to appreciably affect the optical characteristics. Works properly, It takes a little pressure with the stylus for it to respond like in old mobile phones. You notice how it sinks into the screen when you press with the stylus. The stylus that comes with the module makes it easy to use if your interface design uses small controls. Some touch screen libraries offer better accuracy by specifying the resistance of the touch screen in the X direction. Resistance can be easily measured with a multimeter by connecting the test leads to the LCD_D1 - X + and LCD_DS X- terminals. Touch is sensitive to pressure.

The SD card reader works well. Accessing the SD card with the functions available in the SD library included in the IDE version used does not present any problem. SD cards are recognized and can be written or deleted.

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The DMG32240C024_03WTR - 2.4 inch 320x240 UART TFT LCD Display Resistive Touch, 16MB Flash Buzzer SD interfaceis developed by DWIN. The NOR Flash memory in the display is available to store the user database.

The LCD is integrated with a running DGUS II system, a GUI (Graphical User Interface) development software. The pre-installed UI user interface development software can be used to develop your own design and customised features like buttons, text display, graph and slider etc. The T5L1 DWIN development software is a human-machine interface dedicated to ASIC designed by DWIN Technology for AIoT application applications. This software is based on a T5L chip that is a low-power, cost-effective dual-core 8051 processor.

Create a “DWIN_SET” folder in the root directory of SD card and copy all the files (such as picuctures, fonts and config files ) into that “DWIN_SET” folder.

Answer: The DWIN smart LCD modules / smart screens / smart displays can be used for Android Touch Panel, HMI Touch Panel, Smart LCD Display Module, Smart Touch LCD Module, Smart Touch Screen Display, Industrial Touch LCD Display, PLC Display Screen, Serial Port LCD Display, STM32 MCU Displays etc.

These displays can be used in many industrial equipments and devices like Health and fitness equipments, Medical devices, Air treatment devices, Transportation (Car & Ship instruments), instruments and apparatus automation, IC design and manufacture, Kitchen appliances (Juicer, micro-oven , ice machine, ice-cream machine, kitchen ventilator), New energy (Photovoltaic, Wind electricity, Charging Station), Household appliances and many more.

The DMG32240C024_03WTR - 2.4 inch 320x240 UART TFT LCD Display Resistive Touch, 16MB Flash Buzzer SD interfaceis developed by DWIN. The NOR Flash memory in the display is available to store the user database.

The LCD is integrated with a running DGUS II system, a GUI (Graphical User Interface) development software. The pre-installed UI user interface development software can be used to develop your own design and customised features like buttons, text display, graph and slider etc. The T5L1 DWIN development software is a human-machine interface dedicated to ASIC designed by DWIN Technology for AIoT application applications. This software is based on a T5L chip that is a low-power, cost-effective dual-core 8051 processor.

Create a “DWIN_SET” folder in the root directory of SD card and copy all the files (such as picuctures, fonts and config files ) into that “DWIN_SET” folder.

Answer: The DWIN smart LCD modules / smart screens / smart displays can be used for Android Touch Panel, HMI Touch Panel, Smart LCD Display Module, Smart Touch LCD Module, Smart Touch Screen Display, Industrial Touch LCD Display, PLC Display Screen, Serial Port LCD Display, STM32 MCU Displays etc.

These displays can be used in many industrial equipments and devices like Health and fitness equipments, Medical devices, Air treatment devices, Transportation (Car & Ship instruments), instruments and apparatus automation, IC design and manufacture, Kitchen appliances (Juicer, micro-oven , ice machine, ice-cream machine, kitchen ventilator), New energy (Photovoltaic, Wind electricity, Charging Station), Household appliances and many more.

Durable hard PCB board and SD card socket, ideal for 5110 interface 2.4 inch TFT LCD shield without touch panel, fast to operate Support Serial SPI Mode, Interface 4-Wire SPI, Need 4 IOs from your MCU only Support a variety of microcontroller IO......read more on Amazon

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