XIAO ESP32-S3 Plus

Seeed Studio XIAO ESP32S3 Plus, powered by ESP32-S3's 240MHz Xtensa 32-bit LX7 dual-core processor, brings more SMD pins to the tiny versatile XIAO ESP32S3. While maintaining all the powerful features including WiFi and BLE 5.0 wireless connectivities, 2.4GHz Rod antenna, and ultra-low power consumption of 14μA in deep sleep mode with lithium battery charging management, the Plus variant features redesigned castellations and pad layout on the back, offering 9 additional GPIOs specifically for advanced Bluetooth projects requiring expanded I/Os via SMD board-to-board soldering. It's ideal for advanced IoT projects, Smart Homes, and professional wireless devices requiring extra I/O connectivity. KEY FEATURES High-Performance MCU: Dual-core ESP32-S3 at 240MHz, Arduino / MicroPython / ESP-IDF compatible Advanced Wireless: 2.4GHz WiFi + BLE 5.0, 100m+ range with U.FL antenna support Efficient Power Management: Four power modes with 14μA deep sleep, integrated Li-ion charging Expanded 20 GPIOs: 9 extra 1.27mm pitch SMD castellation pins beyond standard XIAO nRF52840 Universal Compatibility: Standard backside layout (with aligned battery pads, and debugger pads) for more to-be-released XIAO expansion boards Classic XIAO Form Factor: 21 x 17.8mm design with 2.54mm pin headers, single-sided mounting for wearables and space-constrained projects SPECIFICATIONS Item Seeed Studio XIAO ESP32S3 Seeed Studio XIAO ESP32S3 Plus Processor ESP32-S3R8 Xtensa LX7 dual-core, 32-bit processor that operates at up to 240 MHz Wireless Complete 2.4GHz Wi-Fi subsystem BLE: Bluetooth 5.0, Bluetooth mesh Memory On-chip 8M PSRAM & 8MB Flash On-chip 8M PSRAM & 16MB Flash Interface 1x UART, 1x IIC, 1x IIS, 1x SPI, 11x GPIOs (PWM), 9x ADC, 1x User LED, 1x Charge LED 1x Reset button, 1x Boot button 2x UART, 1x IIC, 1x IIS, 2x SPI, 18x GPIOs (PWM), 9x ADC, 1x User LED, 1x Charge LED, 1x B2B Connector, 1x Reset button, 1x Boot button Dimensions 21 x 17.8mm Power Input voltage (Type-C): 5V Input voltage (BAT): 4.2V Circuit operating Voltage (ready to operate): - Type-C: 5V@19mA - BAT: 3.8V@22mA Circuit operating Voltage (ready to operate): - Type-C: 5V@28mA - BAT: 3.8V@35mA Charging battery current: 100mA Low Power Consumption Model Modem-sleep Model: 3.8V/25 mA Light-sleep Model: 3.8V/2 mA Deep Sleep Model: 3.8V/14 μA Modem-sleep Model: 3.8V/26.5 mA Light-sleep Model: 3.8V/2.2 mA Deep Sleep Model: 3.8V/69 μA Wi-Fi Enabled Power Consumption Active Model: ~ 100 mA Active Model: ~ 85 mA BLE Enabled Power Consumption Active Model: ~ 85 mA Active Model: ~ 77 mA Working Temperature -40°C ~ 65°C LINKS Getting Started with Seeed Studio XIAO ESP32S3 Series | Seeed Studio Wiki Schematic PCN-XIAO Series Packaging Upgrade.pdf