Seeed Studio XIAO ESP32S3 Pinout

The XIAO ESP32S3 is a compact yet powerful development board built around the ESP32-S3R8 chip, offering robust performance for IoT and embedded applications. It features a dual-core Xtensa LX7 processor clocked at 240MHz, paired with 8MB PSRAM and 8MB Flash (expandable to 16MB in the Plus version), ensuring smooth multitasking and ample storage for firmware. With dual-mode 2.4GHz Wi-Fi and Bluetooth® 5.0 (BLE), it enables seamless wireless connectivity, while an optional U.FL antenna extends the range beyond 100 meters.

Designed for efficiency, the XIAO ESP32S3 includes advanced power management with lithium battery support, ultra-low deep sleep consumption (as low as 14μA), and four adjustable power modes to optimize performance for different use cases. Its thumb-sized (21 x 17.5mm) form factor makes it ideal for wearables and space-constrained projects, while the breadboard-friendly SMD design ensures easy prototyping and production readiness.

Key Technical Specifications:

• ESP32-S3 (Xtensa LX7 dual-core processor)
• Wi-Fi 802.11 b/g/n (2.4 GHz), Bluetooth 5 (LE)
• 8 MB SPI Flash
• 8 MB PSRAM
• USB Type C for both communication, power and charging the battery
• Vector instructions for AI/ML operations
• 11 programmable GPIOs
• SPI, I2C, I2S, UART and ADC
• Builtin LED
• Ability to configure most peripherals to any GPIO pins via GPIO Matrix
• LCD and Camera interfaces
• Touch and temperature sensors
• PWM, LED PWM and Motor Control PWM (MCPWM) peripherals
• Remote Control for infrared remote signal
• Pulse Counter
• SDIO Host and GDMA
• TWAI® controller (compatible with ISO11898-1)
• Timers and Watchdogs