LILYGO® TTGO T5 V2.3.1 ESP32 2.13-Inch E-Paper Screen Development Board User Manual

1. Introducció

The LILYGO® TTGO T5 V2.3.1 is an ESP32-based development board featuring a 2.13-inch E-Paper display. This board is designed for applications requiring ultra-low power consumption, wide viewing angles, and clear display capabilities even without continuous power. It is an ideal choice for projects such as electronic shelf labels, industrial instruments, and other battery-powered display solutions.

Característiques principals:

• Ultra-Low Power Consumption: Power is primarily required only during display refreshes, allowing the last content to remain visible for extended periods without power.
• Sense llum de fons: The E-Paper display does not require a backlight, contributing to its low power profile and excellent readability in various lighting conditions.
• Ample Viewangle: Provides clear visibility from almost any angle.
• Recursos de desenvolupament: Comes with development resources and example code for Arduino-ESP32, facilitating easy integration and programming.

2. Contingut del paquet

Upon opening your LILYGO® TTGO T5 V2.3.1 package, please verify that all the following items are included:

• 1 x LILYGO® TTGO T5 V2.3.1 ESP32 2.13-Inch E-Paper Development Board
• 1 x cable d'alimentació
• 2 x Pin Headers (for optional soldering)

Image: LILYGO TTGO T5 V2.3.1 board with included pin headers and power cable.

3. Configuració

3.1 Dimensions físiques

The board has the following approximate dimensions:

Image: Product dimensions. Main board approximately 61.43mm x 36.75mm, overall with pins approximately 66.29mm x 32.36mm.

Diagrama de pins 3.2

Refer to the pinout diagram below for connecting peripherals and power. Understanding the pin assignments is crucial for proper functionality.

Image: Detailed pin diagram for LilyGo T5_V2.3 ESP32 E-Paper. This diagram shows GPIO assignments for the display (MOSI: 23, MISO: 18, CLK: 5, CS: 17, RST: 16, BUSY: 4) and TF Card (MOSI: 15, SCLK: 14, CS: 13, MISO: 2), along with power pins (3V3, 5V, VBAT, GND) and other general-purpose input/output pins.

3.3 Engegada inicial

Connect the provided power cable to the board's power input and a suitable 5V power source. The board can also be powered via the VBAT pins if using a battery. Ensure correct polarity when connecting external power sources.

4. Instruccions de funcionament

4.1 Programming the ESP32

The LILYGO® TTGO T5 V2.3.1 board utilizes the ESP32 microcontroller, which can be programmed using the Arduino IDE with the ESP32 board support package. Development resources and example code are available to help you get started with displaying content on the E-Paper screen and utilizing other board features.

4.2 E-Paper Display Operation

The 2.13-inch E-Paper display is a bistable display, meaning it retains its image without power. Content updates require a refresh cycle. The board supports both full and partial refreshes:

• Full Refresh: Takes approximately 2 seconds. This clears the entire screen and redraws the new content, ensuring no ghosting.
• Partial Refresh: Supported for faster updates to specific areas of the screen, reducing refresh time and power consumption for dynamic content.

The board may come with different E-Paper driver chips, specifically DEPG0213BN or GDEM0213B74. These chips offer varying grey levels:

• DEPG0213BN: Supports 2 grey levels (black and white).
• GDEM0213B74: Supports 4 grey levels (black, dark grey, light grey, white).

Image: Comparison of DEPG0213BN (2 Grey Levels) and GDEM0213B74 (4 Grey Levels) driver chips.

4.3 Low Power Considerations

To maximize battery life and leverage the E-Paper's low power capabilities, design your applications to minimize display refreshes. Utilize partial refreshes where possible for minor updates, and put the ESP32 into deep sleep mode when the display content does not need to change.

5. Manteniment

The LILYGO® TTGO T5 V2.3.1 development board is designed for durability, but proper care will ensure its longevity:

• Neteja: Use a soft, dry cloth to gently clean the E-Paper display and the board. Avoid using liquids or abrasive materials.
• Emmagatzematge: Store the board in a dry, anti-static environment, away from direct sunlight and extreme temperatures.
• Manipulació: Avoid applying excessive pressure to the E-Paper display, as it can be fragile. Handle the board by its edges to prevent damage to components.
• Actualitzacions de firmware: Regularly check the LILYGO official resources for any firmware updates or library improvements that may enhance performance or add new features.

6. Solució De Problemes

• La placa no s'encén: Ensure the power cable is securely connected and the power source is providing stable 5V. Check for any visible damage to the power input or cable.
• Display Not Updating: Verify that your code correctly initializes the E-Paper display and calls the refresh functions. Check all display-related pin connections according to the pin diagram.
• Ghosting on Display: This can occur with E-Paper displays, especially after many partial refreshes. Perform a full refresh to clear the screen completely. Ensure your refresh cycles are appropriate for your application.
• ESP32 Not Responding/Programming Issues: Double-check your USB connection and ensure the correct board and COM port are selected in your IDE. If issues persist, try a different USB cable or port.
• TF Card Not Detected: Ensure the TF card is inserted correctly and your code properly initializes the SD card module using the correct SPI pins as per the pin diagram.

7. Especificacions

8. Consells d'usuari

While specific user tips from reviews were not available, general advice for development boards like the LILYGO TTGO T5 V2.3.1 includes:

• Comença amb Ex.amples: Always begin by running the provided example code for Arduino-ESP32 to confirm basic functionality and understand the display's operation.
• Gestió d'energia: For battery-powered projects, thoroughly test and optimize your code for deep sleep modes and minimal display refreshes to extend battery life.
• Suport comunitari: Engage with the LILYGO community forums or online resources for project ideas, troubleshooting, and advanced usage techniques.

9. Garantia i Suport

For warranty information, technical support, and additional resources, please refer to the official LILYGO website or contact their customer service directly. Keep your purchase records for any warranty claims.