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Electronics news

ESP32-S3 Wireless Microcontroller

Embedded electronics company LILYGO has released an updated version of its Mini E-Paper Core board, which is now based on the Espressif ESP32-S3 microcontroller, providing more memory and flash (4MB flash and MicroSD card slot) and vector instructions to accelerate machine learning and AI workloads on the device.

Replacing the Espressif ESP32-PICO-D4 with the Espressif ESP32-S3 means moving from the dual-core Tensilica Xtensa LX6 processor to the newer LX7, which provides vector instruction expansion for faster AI workloads, 512 KB of static random access memory (SRAM) plus 2 MB of pseudo-static RAM (PSRAM).

The display on the front of the device is unchanged, a 128×80 electrophoretic ePaper panel that requires power only when changing states. The rear panel of the gadget has general purpose I/O (GPIOs). On the top panel is a three-position button, as well as support for single-band Wi-Fi 4 2.4 GHz and Bluetooth 5 Low Energy (BLE).

The new Mini E-Paper Core S3 is available now at the LILYGO store for $19.10 each.