2.8" LCD Touch Display with ESP32 Development Board - WiFi/BT IoT HMI Module

Specifications

• Processor: ESP32-WROOM-32 Dual-Core (WiFi/Bluetooth).

• Display: 2.8 Inch TFT LCD (320x240 Resolution).

• Driver IC: ILI9341 (Display) & XPT2046 (Touch).

• Touch Type: Resistive Touch Screen.

• External Storage: Integrated TF (MicroSD) Card Slot.

• Connectivity: Micro-USB for Power and Programming.

• Expansion: Extended IO pins for external sensors and relays.

• Programming: Compatible with Arduino IDE, MicroPython, and ESP-IDF.

Key Applications & Projects

• Smart Home Hub: Control lights, fans, and AC units from a central touch-screen panel.

• Industrial Monitoring: Real-time visualisation of sensor data (Temp, Humidity, Pressure).

• Weather Stations: A sleek desk-top unit displaying local forecasts via WiFi APIs.

• IoT Audio Controllers: Use the touch interface to browse and play internet radio.

Project Evolution

• Past Projects (Prerequisites): If you have worked with a basic ESP32 and a separate I2C LCD, you have mastered the basics.

• Feature Upgrade: This board unlocks High-Resolution Graphics (LVGL). You can now design professional-looking smartphone-style interfaces using the LVGL library.

• Effort/Requirements: Intermediate. Requires installing the TFT_eSPI library and configuring the pins correctly (which we provide in our Lab Notes).

Virtual Technician & Wiring

⚠️ Tech Tip: To use this board with the popular TFT_eSPI library, ensure you select the correct User_Setup for the ILI9341 driver. The backlight is controlled by a specific GPIO (usually GPIO 21), which must be set to HIGH to display the screen.

Package Includes: 1 x 2.8 Inch LCD Touch Display with ESP-WROOM-32 Development Board

Frequently Asked Questions (FAQ)

• Does it have an internal battery? No, it must be powered via Micro-USB or the 5V/GND pins.
• Is the touch screen capacitive? No, it is resistive (best operated with a stylus or firm finger press).
• Does it support MicroPython? Yes, it is a standard ESP32 and supports LVGL for MicroPython.
• How do I upload code? Simply use a Micro-USB cable; the board has an onboard USB-to-Serial converter.
• Can I use the SD card and Screen at the same time? Yes, they share the SPI bus but use different Chip Select (CS) pins.
• Is it compatible with LVGL? Yes, it is one of the most popular boards for the LVGL library.
• What is the "Cheap Yellow Display" (CYD)? This is the high-quality Probots version of that community-famous hardware design.
• Does it have integrated speakers? No, but it has pins for connecting an external I2S DAC or buzzer.
• What is the maximum SD card size? Up to 32GB (Formatted to FAT32).
• Does it include a stylus? Yes, most units come with a standard resistive touch stylus.
• Can it connect to 5GHz WiFi? No, ESP32 only supports 2.4GHz WiFi.
• How do I turn on the backlight? Set GPIO 21 to HIGH in your code.
• Is it 5V tolerant? Power input is 5V, but all IO pins are strictly 3.3V.
• Can I mount this in a wall? Yes, its flat-back design makes it ideal for custom 3D-printed wall mounts.
• What is the viewing angle? Standard TFT viewing angles (Best viewed head-on).
• Does it support Bluetooth? Yes, both Bluetooth Classic and BLE.
• What driver should I select in Arduino? The ILI9341 is the correct driver choice.
• Can I use the display without the touch function? Yes, the touch controller is separate and optional.
• How much RAM does it have? 520KB Internal SRAM + standard ESP32 Flash.
• Is the ESP32 chip genuine? Yes, we source verified Espressif modules for high radio performance.