After the T-Display-S3 AMOLED board, LILYGO has launched another ESP32-S3 board with an AMOLED display named the T-Track that features a smaller 1.1-inch AMOLED display and a trackball that allows the user to navigate any menu or user interface shown on the display.
The rest of the board’s specifications are very similar with an ESP32-S3R8 dual-core chip with 8MB PSRAM providing WiFi and BLE connectivity, a 16MB SPI flash for storage, two rows of pins for up to 18x GPIOs, a Qwicc connector for module expansion, and support for USB-C charging and a LiPo battery for power.
T-Track specifications:
- Wireless MCU – Espressif Systems ESP32-S3R8 dual-core Tensilica LX7 @ up to 240 MHz with vector instructions for AI acceleration, 512KB RAM, 8MB PSRAM, wireless connectivity
- Storage – 16MB flash
- Connectivity via ESP32-S3
- 2.4 GHz 802.11 b/g/n Wi-Fi 4 with 40 MHz bandwidth support
- Bluetooth Low Energy (BLE) 5.0 connectivity with long-range support, up to 2Mbps data rate.
- 3D antenna and external u.FL antenna support (selectable with 0 Ohm resistor, see schematics)
- Display – 1.1-inch 294×126 AMOLED display with JD9613 4-wire SPI display controller
- USB – 1x USB Type-C port for power and programming
- Expansion
- 2x 13-pin headers with up to 18x GPIO, 1x SPI, 10x ADC, SPI, UART, Touch interfaces, 5V, 3.3V, and GND
- 4-pin STEMMA QT/Qwiic connector with 3.3V, GND, and 2x GPIOs (IO43, IO44)
- Misc
- Trackball also acting as the Boot button when pressed down
- Reset buttons
- Red charging LED, green user LED (IO21)
- Power Supply
- 5V via USB Type-C port
- 2-pin 1.25mm pitch JST header for LiPo battery
- Dimensions – 57 x 20 x 15mm
The ESP32-S3 board works with PlatformIO (Arduino code) and LILYGO provides sample code that works with LVGL graphics library to test the AMOLED display and includes functions for WiFi and the trackball on GitHub, as well as the PDF schematics.
The T-Track board is currently sold on Aliexpress for$20.88 including shipping.
Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.
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They won me over with the tiny track ball. I admit I have a soft spot for track balls. I picked up some tiny track ball modules years ago and made a USB/HID adapter for them so that they can be used as a mouse on modern hardware. They natively had a 2400 baud serial interface speaking an old serial mouse protocol.
shouldn’t reset button be made more hidden to avoid accidental press?