Manuals+

LILYGO T-Echo Plus

LILYGO T-Echo Plus User Manual

NRF52840 1.54'' E-Paper Wireless Module with SX1262 LoRa and L76K GNSS

1. Introducció

The LILYGO T-Echo Plus is an advanced, low-power wireless module designed for a wide range of DIY and programmable applications. It serves as an upgraded version of the original T-Echo, incorporating several key enhancements for improved functionality and user experience.

Key features of the T-Echo Plus include an increased battery capacity, a robust battery protection bracket, integrated vibration and buzzer functionalities, and optimized button responsiveness. Its design features a thicker profile, a finger grip for comfortable handling, and a 1/4-inch nut for versatile mounting options. This module is powered by an NRF52840 microcontroller, equipped with an SX1262 LoRa transceiver for long-range communication, a 1.54-inch E-Paper display for low-power visual feedback, and an L76K GNSS module for multi-system positioning. The current version comes pre-flashed with LILYGO firmware and includes an external LoRa antenna.

Davant i darrere view of the LILYGO T-Echo Plus module
Figure 1: LILYGO T-Echo Plus Module (Front and Back)

2. Especificacions

The LILYGO T-Echo Plus boasts the following technical specifications:

CaracterísticaDetall
MCUNRF52840
FLASH2 MB
RAM256 kB
Bus InterfacesUART, SPI, TWI, PDM, I2S, QSPI
Connectivitat sense filBluetooth 5, Thread, Bluetooth Mesh, ANT, 802.15.4, Zigbee
LoRa TransceiverSX1262 (Global frequency coverage 400~520, 830~945 MHz)
Mostra1.54 inch SPI E-Paper (200 x 200 resolution, 2 grey levels, 2s full refresh time)
Mòdul GNSSL76K (Supports GPS, GLONASS, BeiDou, QZSS)
Capacitat de la bateria2400 mAh
Altres característiquesBHI260AP IMU, Vibration Motor, Buzzer (Note: BME280 not included in current version)
Dimensions (L x A x A)89 mm x 53 mm x 45 mm
Table of T-Echo Plus Specifications
Figure 2: Detailed Specifications of T-Echo Plus
LILYGO T-Echo Plus with antenna, showing dimensions
Figure 3: T-Echo Plus Dimensions

3. Configuració

To begin using your LILYGO T-Echo Plus, follow these setup instructions:

  1. Connecteu l'antena LoRa: Carefully screw the provided external LoRa antenna into the SMA connector on the top of the T-Echo Plus module. Ensure it is finger-tight to establish a secure connection.
    2. LILYGO T-Echo Plus with antenna attached, front view
    Figure 4: T-Echo Plus with Antenna Attached (Front)
  2. Càrrec inicial: Connect the T-Echo Plus to a 5V USB power source using a compatible USB-C cable to fully charge the internal 2400mAh battery before first use.
  3. Firmware Installation/Update: The T-Echo Plus is a programmable development board. For custom applications or updates, you will need to flash firmware.
    • Visit the official LILYGO GitHub repository for the T-Echo Plus for detailed instructions, sample code, and the latest firmware: https://github.com/Xinyuan-LilyGO/LilyGO-T-Echo
    • Follow the specific flashing procedures outlined in the repository's documentation. This typically involves using a USB connection and a suitable programming tool.
  4. Muntatge (opcional): Utilize the integrated 1/4-inch nut for mounting the device to compatible tripods, stands, or other fixtures as needed for your project.
Detailed diagram of T-Echo Plus components and features
Figure 5: T-Echo Plus Component Overview

4. Funcionament

Operating the LILYGO T-Echo Plus involves interacting with its various components based on the loaded firmware:

  • Encès/apagat: The device typically has a power button or a specific sequence to power it on or off. Refer to the firmware documentation for exact procedures.
  • E-Paper Display: The 1.54-inch E-Paper display provides visual information. Its low-power nature means updates may not be instantaneous, with a full refresh time of approximately 2 seconds. The display content is controlled by the loaded firmware.
  • LoRa Communication: The SX1262 LoRa transceiver enables long-range, low-power wireless communication. Ensure the external antenna is properly connected for optimal performance. The specific frequency (400-520 MHz or 830-945 MHz) depends on the module variant and regional regulations.
  • GNSS Positioning: The L76K GNSS module supports GPS, GLONASS, BeiDou, and QZSS for accurate location tracking. For best results, operate the device outdoors with a clear view del cel.
  • Sensors and Feedback:
    • BHI260AP IMU: Provides motion sensing capabilities (e.g., acceleration, gyroscope data).
    • Vibration Motor & Buzzer: These components offer haptic and audible feedback, controlled by the firmware for alerts or notifications.
  • Button Interaction: The device features buttons for user input. Their functions are defined by the loaded firmware (e.g., menu navigation, data logging, mode switching).
  • Interfície USB: The USB port is used for charging, firmware flashing, and serial communication for debugging or data transfer, depending on the firmware implementation.
T-Echo Plus Pinout Diagram
Figure 6: T-Echo Plus Pinout Diagram

5. Manteniment

Proper maintenance ensures the longevity and optimal performance of your T-Echo Plus:

  • Cura de la bateria:
    • Avoid fully discharging the 2400mAh battery frequently.
    • Guardeu el dispositiu amb una càrrega parcial (al voltant del 50%) si no l'utilitzeu durant períodes prolongats.
    • Feu servir només fonts d'alimentació USB de 5 V compatibles per carregar.
  • Neteja:
    • Netegeu el dispositiu amb un drap suau i sec.
    • Eviteu utilitzar productes químics o materials abrasius.
    • Ensure no moisture enters the USB port or other openings.
  • Actualitzacions de firmware: Regularly check the official LILYGO GitHub repository (https://github.com/Xinyuan-LilyGO/LilyGO-T-Echo) for new firmware versions, bug fixes, and feature enhancements. Keeping your firmware up-to-date can improve performance and stability.
  • Connexió d'antena: Periodically check that the LoRa antenna is securely attached. A loose connection can degrade wireless performance.

6. Solució De Problemes

If you encounter issues with your T-Echo Plus, consider the following troubleshooting steps:

  • El dispositiu no s'encén:
    • Ensure the battery is sufficiently charged. Connect to a USB power source and allow some time for charging.
    • Verify the USB cable and power adapter are functional.
  • E-Paper Display Issues:
    • If the display is blank or shows garbled text, try restarting the device.
    • Ensure the firmware is correctly loaded and configured for the display.
  • LoRa Communication Problems:
    • Check that the external LoRa antenna is securely connected.
    • Verify that both transmitting and receiving devices are using compatible LoRa frequencies and settings (e.g., spreading factor, bandwidth).
    • Ensure there are no major obstructions between the devices.
  • GNSS Not Acquiring Fix:
    • Operate the device outdoors with a clear, unobstructed view del cel.
    • Allow sufficient time (several minutes) for the GNSS module to acquire satellite signals.
    • Ensure the firmware is correctly initializing and reading data from the L76K module.
  • Error de càrrega de firmware:
    • Double-check your USB connection and ensure the correct drivers are installed.
    • Verify that you are using the correct flashing tool and settings as specified in the GitHub documentation.
    • Prova amb un port o cable USB diferent.

7. Consells d'usuari

  • Programming Knowledge Recommended: The T-Echo Plus is a development board. It is highly recommended for users with a programming background (e.g., engineers, students, manufacturers) to fully utilize its capabilities.
  • Prova amb Samples: If you are new to this product or planning a large-scale deployment, consider purchasing 2-3 samples first. This allows for thorough testing to ensure the product meets your specific project requirements before a bulk purchase.
  • Utilize Online Resources: For technical discussions, usage issues, or community support, refer to the official LILYGO GitHub repository or relevant online communities. These platforms often contain valuable insights and solutions from other users and developers.
  • Clear Communication for Support: When seeking assistance for product or order-related questions, provide clear descriptions, and if possible, include pictures or videos to illustrate your problem. This helps customer service or technical support diagnose issues more quickly and accurately.

8. Suport

Per obtenir més ajuda i recursos, consulteu el següent:

  • Official GitHub Repository: For the latest firmware, sample code, and detailed technical documentation, visit https://github.com/Xinyuan-LilyGO/LilyGO-T-Echo.
  • Atenció al client: For any questions regarding your order or specific product issues not covered in this manual or the GitHub resources, please contact the seller's customer service. Providing clear details, pictures, or videos of your issue will facilitate a quicker resolution.

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