ESP32 board equipped with Ethernet and MicroSD card slot
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ESP32 board equipped with Ethernet and MicroSD card slot
Sep 23, 2023 — by Giorgio Mendoza
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One of the latest embedded products launched by LILYGO is the T-ETH-Lite which is based on the ESP32-S3 module with Wi-Fi and Bluetooth connectivity. Additionally, the compact board includes an ethernet port and a microSD card slot for convenient storage.
This development board, like other new LILYGO products, is built around the ESP32-S3 microcontroller.
- ESP32-S3 – Xtensa 32-bit LX7 dual core (up to 240MHz); 16 MB PSRAM; 16 MB Flash; 2.4GHz Wi-Fi/BLE 5.0
ESP32-S3 block diagram
(click image to enlarge)
The ethernet chip onboard is a WIZnet W5500 that is described as “a Hardwired TCP/IP embedded Ethernet controller that enables easier internet connection for embedded systems using SPI (Serial Peripheral Interface).”
PoE module
(click image to enlarge)
According to the pinout image below, the T-ETH-Lite provides a minimum of 23 GPIOs, 14 ADC channels, and 8 touch pins, among other functionalities. Additionally, LILYGO is offering a compatible PoE module, as shown above.
T-ETH-Lite pinout
(click image to enlarge)
For documentation, LILYGO has a GitHub repository for the T-ETH-Series which includes various examples using Arduino.
Specifications listed for the T-ETH-Lite include:
- Storage:
- 1x MicroSD card slot
- Connectivity:
- W550 Ethernet module (10BaseT/100BaseTX, w/ WoL over UDP)
- I/O Interfaces:
- Up to 23x GPIOs, 14x ADC, 8x Touch,
- Other Features:
- 1x Reset button
- 1x Boot button
Power:
- Mechanical:
- 59mm x 28mm x 11mm
Further information
The T-ETH-Lite with the ESP32-S3 module and the PoE module is priced at $25.98 on AliExpress. Similarly, the development board alone is priced at $14.88, and the PoE module is available separately for $11.43. For more details and purchasing options, refer to the LILYGO online store.
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