LILYGO T4 S3 integrates an Espressif ESP32-S3 and 8MB of PSRAM along with vibrant AMOLED display

LILYGO T4 S3 integrates an Espressif ESP32-S3 and 8MB of PSRAM along with vibrant AMOLED display

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LILYGO, a specialist in embedded electronics, has recently introduced a compact development board featuring a touch-screen centered on the Espressif ESP32-S3. This new offering is called the LILYGO T4 S3 and comes with a 2.41″ full-color AMOLED display.

The recently launched development board is centered on Espressif’s ESP32-S3 system-on-chip. This means it incorporates a dual-core 32-bit Tensilica Xtensa LX7 microcontroller that operates at speeds of up to 240MHz, featuring vector instructions for enhanced performance in on-device machine learning and artificial intelligence (ML and AI) tasks. The board also includes 8MB of off-chip pseudo-static RAM (PSRAM).

T4-S3-pinout-diagram
T4-S3-pinout-diagram

Additionally, the board offers 16MB of flash storage, with the option for microSD expansion. It features a 3D antenna and an IPEX connector designed for an external antenna. This single antenna serves the onboard Wi-Fi 4 and Bluetooth 5.0 Low-Energy (BLE) radios. Furthermore, the board is equipped with a USB Type-C port, serving dual power supply and programming purposes.

The standout feature of the board’s design is its prominent full-color display on the front. Utilizing active-matrix organic light-emitting diode (AMOLED) technology, the display boasts a resolution of 600×450 and a brightness of 800cd/m². Notably, it is fully touch-sensitive and communicates with the host microcontroller through a quad-SPI bus.

In terms of connectivity, the device includes two Qwiic ports for external hardware, a 30-pin 1.27mm-pitch header that exposes general-purpose input/output (GPIO) and power pins, and a JST-GH connector for an optional battery. Officially, the board supports development in PlatformIO, the Arduino IDE, and MicroPython. Unofficially, it should be compatible with any software running on the Espressif ESP32-S3, as long as suitable driver libraries for the display are available.

For those interested, the LILYGO T4 S3 is currently offered at the official company store, priced at $56.89

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