Connected IoT devices and wireless sensor nodes
On-board radio: Wi-Fi 2.4 GHz; Bluetooth LE 5.0 / Mesh.
Engineering inference
Seeed Studio
Seeed Studio XIAO ESP32-S3
Thumb-sized (21×17.8 mm) ESP32-S3R8 board: dual-core LX7 240 MHz, 8 MB PSRAM + 8 MB flash, Wi-Fi 4 + BLE 5 with U.FL antenna, 11 GPIO (9 ADC, touch), Li-ion charger, USB-C, castellated pads + JTAG/USB back pads; 14 µA deep sleep.
113991114Development boardPrice$7.49Seeed Studio · unknown
Buy at Seeed Studio Board essentials
Facts about the complete product. Unknown values remain open design questions.
- Exposed GPIO
- 11
- Board I/O voltage
- 3.3 V
- Board flash capacity
- 8 MiB
- Board SRAM capacity
- 512 KiB
- Board PSRAM capacity
- 8 MiB
- Board operating range
- -20 to 65 °C
A good fit for
Guidance to help you shortlist. The basis is shown for each recommendation.
Battery-powered and portable builds
On-board LiPo charger (SG Micro SGM40567-4.2XG/TR) — run from a cell and charge over USB.
Engineering inferenceCustom USB devices (HID, MIDI, serial)
USB is on the main chip (ESP32-S3R8), so the board can enumerate as a keyboard, MIDI device or CDC serial port.
Engineering inferenceSpace-constrained and embedded builds
17.78 × 21.14 mm footprint.
Engineering inferenceLearning and fast prototyping
Programs from Arduino, MicroPython.
Engineering inferenceInside this board
The board is the parent product. Each chip has its own memory, pins, capabilities and thermal limits.
main processor
ESP32-S3R8
Espressif Systems
f8f51403-28d7-500e-a231-87ec8d37ca01--mcu- Architecture
- Xtensa 32-bit LX7 dual-core
- Documented clock
- 240 MHz
- On-chip SRAM
- 512 KiB
flash memory
GD25Q64ENIGR
GigaDevice
f8f51403-28d7-500e-a231-87ec8d37ca01--u5buck converter
SGM6029CYG/TR
SG Micro
f8f51403-28d7-500e-a231-87ec8d37ca01--u3battery charger
SGM40567-4.2XG/TR
SG Micro
f8f51403-28d7-500e-a231-87ec8d37ca01--u4FAQ
Seeed Studio XIAO ESP32-S3 questions
What microcontroller does the Seeed Studio XIAO ESP32-S3 use?
The Seeed Studio XIAO ESP32-S3 is built around the ESP32-S3R8, alongside GD25Q64ENIGR, SGM6029CYG/TR, SGM40567-4.2XG/TR.
How many GPIO pins does the Seeed Studio XIAO ESP32-S3 have?
11 GPIO pins are exposed. Xirkit documents 24 board pins, 18 of them with pin-level electrical limits.
Are the Seeed Studio XIAO ESP32-S3 I/O pins 5 V tolerant?
No. The I/O pins are not 5 V tolerant — they run at 3.3 V logic; use a level shifter for 5 V signals. Input-high threshold: 2.475–3.6 V.
How much current can a Seeed Studio XIAO ESP32-S3 GPIO pin source?
Documented output-high current per pin: 40 mA typ. Values are traced to the chip datasheet; see the pinout table for per-pin limits and conditions.
What voltage powers the Seeed Studio XIAO ESP32-S3?
Supply range 3.7–5 V. Power inputs: 5V, BAT+.
How much does the Seeed Studio XIAO ESP32-S3 cost?
From $7.49 at Seeed Studio. Prices are observed unit prices before tax and shipping.
What are the Seeed Studio XIAO ESP32-S3 dimensions?
17.78 × 21.14 × 1.6 mm. A STEP model is available for enclosure fit checks.
Which interfaces does the Seeed Studio XIAO ESP32-S3 support?
gpio, pwm, adc, touch, gpio_matrix, rtc_gpio, i2c, uart, clock, spi, jtag, control, usb.
How do I program the Seeed Studio XIAO ESP32-S3?
Supported frameworks: Arduino, MicroPython.
Where does this Seeed Studio XIAO ESP32-S3 data come from?
Every value in this record is traced to a source — 2 documents including the board and chip datasheets — with the page and table cited per value. Unknowns are left explicit, never guessed.
Data & sources
Where these values come from
- Seeed Studio XIAO ESP32-S3 datasheet — Seeed Studio
- Seeed Studio listing