Design with ELEGOO 2.8 Inches TFT Touch Screen with SD Card in Cirkit DesignerThe ELEGOO 2.8 Inches TFT Touch Screen is a versatile and colorful display module designed for interfacing with microcontrollers such as the Arduino UNO. It features a resistive touch panel which allows for user input, making it suitable for a wide range of interactive projects. The inclusion of an SD card slot provides additional storage for images, data logs, or other files, enhancing the module's capability for projects that require external data storage.
This is a microcontroller-based interactive device featuring a Wemos D1 Mini, an OLED display, external EEPROM, and an I/O expander. It includes user input buttons and status LEDs, with potential MIDI interface capabilities.
Open Project in Cirkit Designer
This circuit features an ESP32 microcontroller connected to a 0.96" OLED display via I2C (SCK and SDA lines), multiple pushbuttons interfaced to various GPIO pins for input, and a LiPoly battery connected through a TP4056 charging/protection module to power the system. A step-up boost power converter adjusts the battery voltage to supply the ESP32 and OLED display. The toggle switch controls the power flow from the battery to the converter, enabling an on/off functionality for the circuit.
Open Project in Cirkit Designer
This circuit features an ESP32 microcontroller connected to an ili9341 TFT display, an SD card module, and an E07-M1101D RF transceiver module. The ESP32 controls the display via GPIO pins and communicates with both the SD card and the RF module using SPI communication. The circuit is likely designed for applications requiring a user interface, data storage, and wireless communication capabilities.
Open Project in Cirkit Designer
This circuit features an Arduino Mega 2560 microcontroller connected to an ILI9488 HD TFT LCD screen and a 4-channel relay module, powered by a 5V battery. The Arduino controls the LCD to display interactive buttons and uses digital output pins to toggle the state of the relays based on touch input. The code provided facilitates a user interface on the LCD for controlling devices connected to the relays, making it suitable for home automation or similar applications.
Open Project in Cirkit Designer| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | VCC | Power supply (3.3V to 5V) |
| 2 | GND | Ground |
| 3 | CS | Chip select for TFT display |
| 4 | RESET | Reset pin for TFT display |
| 5 | D/C | Data/Command control pin |
| 6 | SD_CS | Chip select for SD card |
| 7 | MOSI | Master Out Slave In for SPI communication |
| 8 | SCK | Serial Clock for SPI communication |
| 9 | MISO | Master In Slave Out for SPI communication |
| 10 | LED | Backlight control pin |
| 11 | T_CLK | Touch clock pin |
| 12 | T_CS | Touch chip select |
| 13 | T_DIN | Touch data in |
| 14 | T_DO | Touch data out |
| 15 | T_IRQ | Touch interrupt |
#include <Elegoo_TFTLCD.h> // Include the Elegoo TFT library
#include <TouchScreen.h> // Include the touch screen library
// Pin definitions
#define LCD_CS A3 // Chip Select
#define LCD_CD A2 // Command/Data
#define LCD_WR A1 // LCD Write
#define LCD_RD A0 // LCD Read
#define LCD_RESET A4 // LCD reset
// Initialize the TFT library
Elegoo_TFTLCD tft(LCD_CS, LCD_CD, LCD_WR, LCD_RD, LCD_RESET);
void setup() {
tft.reset();
tft.begin(0x9341); // Pass the driver chip type to the library
tft.setRotation(1); // Set rotation
tft.fillScreen(BLACK); // Clear the screen to black
}
void loop() {
// Your code to interact with the touch screen goes here
}
Q: Can I use this screen with other microcontrollers besides Arduino? A: Yes, as long as the microcontroller supports SPI communication and operates at a compatible voltage level.
Q: How do I adjust the screen brightness? A: The screen brightness can be adjusted by applying a PWM signal to the LED pin.
Q: What should I do if I see white spots or lines on the display? A: White spots or lines can indicate a hardware issue. Check the display connections and contact the manufacturer if the problem persists.
Q: How can I extend the life of the touch screen? A: Avoid applying excessive force to the touch screen and protect it from sharp objects that could scratch or damage the surface.