








Product Details
Seeed Studio XIAO ESP32S3 Plus: Extra I/O & 16MB Flash for Advanced IoT Projects
Elevate your IoT and wireless projects with the Seeed Studio XIAO ESP32S3 Plus , the compact powerhouse now with even more connectivity and memory. Building on the innovative SMD pin design philosophy, the XIAO ESP32S3 Plus introduces redesigned castellations and an optimized back pad layout. This unlocks 9 additional GPIOs (20 total GPIOs) via 1.27mm pitch SMD pins, perfect for board-to-board soldering in projects demanding extensive I/O capabilities, especially advanced Bluetooth applications.
Powered by the formidable ESP32-S3 240MHz Xtensa 32-bit LX7 dual-core processor , this tiny board retains all the acclaimed features of the XIAO series, including robust 2.4GHz WiFi and Bluetooth BLE 5.0 wireless connectivity (with U.FL antenna support for over 100m range), and an incredibly low power consumption of just 14μA in deep sleep mode , complete with lithium battery charging management. The "Plus" variant significantly upgrades your project potential with an expanded 16MB Flash memory , ideal for more complex applications and larger firmware.
Whether you're developing for Smart Homes, advanced IoT solutions, or professional wireless devices , the XIAO ESP32S3 Plus offers unparalleled flexibility. It's compatible with Arduino, MicroPython, and ESP-IDF, catering to all skill levels. Its classic XIAO form factor (21 x 17.8mm) with 2.54mm pin headers and single-sided mounting makes it perfect for wearables and space-constrained designs. Plus, enjoy seamless integration with the entire XIAO accessory ecosystem , including expansion boards, connectivity modules (LoRa, CAN_Bus), sensors, and actuators.
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 |
2 x UART, 1x IIC, 1x IIS, 2 x SPI, 18 x 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 |


What's in the Box
- 1 x Seeed Studio XIAO ESP32S3 Plus Board