Seeed Studio XIAO INTRODUCION

Seeed Studio XIAO Series consists of 7 versions to satisfy the diverse needs of makers, product designers, and educators. If you're a maker, you can take advantage of its rich community resources to get inspiration and knowledge for your own projects. The XIAO Series offers educators a comprehensive gettingstarted course and detailed wikis to quickly learn how to use XIAO for their projects. If you're a product designer, XIAO SoM User Manual covers everything from Module Selection to Mass Production.
XIAO is a combination of compactness, capability, and user-friendly design. The whole XIAO Series features compact design withall SMD components are placed on the same side of the board, so designers can easily integrate XIAO into their own boards for rapid mass production.
XIAO is a combination of compactness, capability, and user-friendly design. The whole XIAO Series features compact design withall SMD components are placed on the same side of the board, so designers can easily integrate XIAO into their own boards for rapid mass production.
Featuresโ
Seeed Studio XIAO Seriesโ
Seeed Studio XIAO ESP32S3 Senseโ
Ultra-small ESP32-S3 development board with OV2640 camera, a risging star in the fields of TinyML and Smart Home
HIGH-PERFORMANCE240MHz Xtensa 32-bit LX7 dual-core processor
MEMORY8MB PSRAM + 8MB FLASH
MULTI-FUNCTIONALMicrophone/SD card slot/Detachable OV2640
WIRELESS2.4GHz WiFi and BLE 5
TINYML-SUPPORTEDImage Processing/Speech Recognition
HIGH-PERFORMANCE240MHz Xtensa 32-bit LX7 dual-core processor
MEMORY8MB PSRAM + 8MB FLASH
MULTI-FUNCTIONALMicrophone/SD card slot/Detachable OV2640
WIRELESS2.4GHz WiFi and BLE 5
TINYML-SUPPORTEDImage Processing/Speech Recognition

Seeed Studio XIAO ESP32S3โ

Small yet extraordinary, a new Benchmark in IoT Application
HIGH-PERFORMANCE240MHz Xtensa 32-bit LX7 dual-core processor
ULTRA LOW-POWER14ฮผA
MULTI-FUNCTIONALMicrophone/SD card slot/Detachable OV2640
WIRELESS2.4GHz WiFi and BLE 5
IOT BREAKTHROUGHSSmart Homes/Mobile Devices/Wireless Wearable Applications
HIGH-PERFORMANCE240MHz Xtensa 32-bit LX7 dual-core processor
ULTRA LOW-POWER14ฮผA
MULTI-FUNCTIONALMicrophone/SD card slot/Detachable OV2640
WIRELESS2.4GHz WiFi and BLE 5
IOT BREAKTHROUGHSSmart Homes/Mobile Devices/Wireless Wearable Applications
Seeed Studio XIAO ESP32C3โ
XIAO ESP32C3 is a low-cost, high-performance RISC-V IOT development board that supports Bluetooth&WIFI and low-power mode
POWERFUL MCU (ESP32C3)RISC-V 32bit, up to 160MHz ESP32-C3 4MB Flash
DUAL-MODE WIRELESS CONNECTIVITYWIFI and BLE
LOW POWER CONSUMPTIONWIFI (3.6mA), BLE (9.7mA), Deep Sleep Mode (44uA)
EXCELLENT RFWith free U.FL antenna Bluetooth/WIFI stable connection distance over 100 meters
PROLONGED USE TIMEOn-board charging chip design
HIGH COST PERFORMANCEWIFI/BLE dual mode development board for only $4.99
POWERFUL MCU (ESP32C3)RISC-V 32bit, up to 160MHz ESP32-C3 4MB Flash
DUAL-MODE WIRELESS CONNECTIVITYWIFI and BLE
LOW POWER CONSUMPTIONWIFI (3.6mA), BLE (9.7mA), Deep Sleep Mode (44uA)
EXCELLENT RFWith free U.FL antenna Bluetooth/WIFI stable connection distance over 100 meters
PROLONGED USE TIMEOn-board charging chip design
HIGH COST PERFORMANCEWIFI/BLE dual mode development board for only $4.99

Seeed Studio XIAO nRF52840 Senseโ

XIAO nRF52840 Sense features an onboard microphone and 3-axis IMU, suitable for the TinyML AI+IOT project
IDEAL OPTION FOR TINYML AI PROJECTOnboard digital microphone for real-time audio recognition
6-aix IMU for gesture recognition
Sensing, Processing, Communication in 1 Node
SAME FEATURES AS XIAO NRF52840
IDEAL OPTION FOR TINYML AI PROJECTOnboard digital microphone for real-time audio recognition
6-aix IMU for gesture recognition
Sensing, Processing, Communication in 1 Node
SAME FEATURES AS XIAO NRF52840
Seeed Studio XIAO nRF52840โ
XIAO nRF52840 features ultra-low power BLE, suitable for wireless wearable device
VARIOUS WIRELESS CONNECTIVITY OPTIONSBluetooth 5.0, NFC with onboard antenna
POWERFUL MCU (NORDIC NRF52840)ARMยฎ Cortexโข-M4 32-bit processor with FPU operating at 64 MHz
ULTRA-LOW POWER CONSUMPTIONAs low as 5 ฮผA in deep sleep model
PROLONGED USE TIMESupport lithium battery charge management
INTERFACE RICH1x Reset button, Ix UART, 1x I2C, 1x SPI, 1x NFC, 1x SWD, 11x GPIO, 6x ADC, 1x Three-in-one LED, 1x User LED
VARIOUS WIRELESS CONNECTIVITY OPTIONSBluetooth 5.0, NFC with onboard antenna
POWERFUL MCU (NORDIC NRF52840)ARMยฎ Cortexโข-M4 32-bit processor with FPU operating at 64 MHz
ULTRA-LOW POWER CONSUMPTIONAs low as 5 ฮผA in deep sleep model
PROLONGED USE TIMESupport lithium battery charge management
INTERFACE RICH1x Reset button, Ix UART, 1x I2C, 1x SPI, 1x NFC, 1x SWD, 11x GPIO, 6x ADC, 1x Three-in-one LED, 1x User LED

Seeed Studio XIAO RP2040โ

XIAO RP2040 is an ultra small, high performance universal development board. Features onboard 2MB flash, micropython support
GETTING STARTED FASTSupport Arduino/Micropython/CircuitPython
COST-EFFECTIVELower the barrier to entry
MORE POWERFUL MCU (RP2040)Dual-core ARM Cortex M0+ Raspberry PI RP2040 chip, running up to 133 MHz
RICH ON-CHIP MEMORY264KB of SRAM, 2MB of onboard Flash
INTERFACE RICH11 digital pins, 4 analog pins, 11 PWM Pins, 1 I2C interface, 1 UART interface, 1 SPI interface, 1 SWD Bonding pad interface
GETTING STARTED FASTSupport Arduino/Micropython/CircuitPython
COST-EFFECTIVELower the barrier to entry
MORE POWERFUL MCU (RP2040)Dual-core ARM Cortex M0+ Raspberry PI RP2040 chip, running up to 133 MHz
RICH ON-CHIP MEMORY264KB of SRAM, 2MB of onboard Flash
INTERFACE RICH11 digital pins, 4 analog pins, 11 PWM Pins, 1 I2C interface, 1 UART interface, 1 SPI interface, 1 SWD Bonding pad interface
Seeed Studio XIAO SAMD21โ
XIAO SAMD21 is an ultra small, high performance universal development board
USERSโ FAVOURITEFirst pioneering product of XIAO series!
THUMB-SIZEDThe smallest Arduino-compatible board in Seeed Studio board Family
POWERFUL MCU (SAMD21)ARMยฎ Cortexยฎ-M0+ 32bit 48MHz microcontroller(SAMD21G18) with 256KB Flash,32KB SRAM
FLEXIBLE COMPATIBILITYCompatible with Arduino IDE, Breadboard-friendly
INTERFACE RICH11 digital/analog pins, 10 PWM Pins, 1 DAC output, 1 SWD Bonding pad interface, 1 I2C interface, 1 UART interface, 1 SPI interface
USERSโ FAVOURITEFirst pioneering product of XIAO series!
THUMB-SIZEDThe smallest Arduino-compatible board in Seeed Studio board Family
POWERFUL MCU (SAMD21)ARMยฎ Cortexยฎ-M0+ 32bit 48MHz microcontroller(SAMD21G18) with 256KB Flash,32KB SRAM
FLEXIBLE COMPATIBILITYCompatible with Arduino IDE, Breadboard-friendly
INTERFACE RICH11 digital/analog pins, 10 PWM Pins, 1 DAC output, 1 SWD Bonding pad interface, 1 I2C interface, 1 UART interface, 1 SPI interface

Seeed Studio XIAO Series Comparison Tableโ
Seeed Studio XIAO SAMD21 | Seeed Studio XIAO RP2040 | Seeed Studio XIAO nRF52840 | Seeed Studio XIAO nRF52840 Sense | Seeed Studio XIAO ESP32C3 | Seeed Studio XIAO ESP32S3 | Seeed Studio XIAO ESP32S3 Sense | |
---|---|---|---|---|---|---|---|
SKU | 102010328 | 102010428 | 102010448 | 102010469 | 113991054 | 113991114 | 113991115 |
Short Description | Universal With Strong Stability and Compatibility | Compatible with the Raspberry Pi RP2040 ecosystem | Ultra-low power consumption Bluetooth 5.0 Suitable for consumergrade product applications | Advanced Version of XIAO nRF52840 With Onboard Microphone And 3-Axis IMU | With WiFi and BLE, BudgetFriendly Risc-V | With WiFi and BLE, High Performance | Advanced Version of XIAO ESP32S3 with OV2640 Camera and Microphone |
Chip | Microchip SAMD21 | Raspberry Pi RP2040 | Nordic nRF52840 | Nordic nRF52840 | Expressif ESP32C3 | Expressif ESP32S3 | Expressif ESP32S3 |
Architecture | Cortex-M0+ running up to 48MHz | Dual-core Cortex-M0+ running up to 133 MHz | Cortex-M4 running up to 64 MHz | Cortex-M4 running up to 64 MHz | RISC-V running up to 160 MHz | Dual-core Xtensa LX7 running up to 240 MHz | Dual-core Xtensa LX7 running up to 240 MHz |
RAM | 32 KB SRAM | 264 KB SRAM | 256 KB RAM | 256 KB RAM | 400 KB SRAM | 512 KB SRAM 8MB PSRAM | 512 KB SRAM 8MB PSRAM |
Flash&ROM (chip) | 256KB | โ | 1MB | 1MB | 4MB | 384KB | 384KB |
Flash (onboard) | โ | 2MB | 2MB | 2MB | โ | 8MB | 8MB |
Built-in Sensors | โ | โ | โ | IMU, Microphone | โ | โ | OV2640 camera, Microphone |
PWM/Analog Pins | 11/11 | 11/4 | 11/6 | 11/6 | 11/4 | 11/9 | 13/11 |
I2C/UART/SPI | โ | โ | โ | โ | โ | โ | โ |
Buletooth | โ | โ | โ | โ | โ | โ | โ |
WiFi | โ | โ | โ | โ | โ | โ | โ |
Reset Button | โ | โ | โ | โ | โ | โ | โ |
Boot Button | โ | โ | โ | โ | โ | โ | โ |
User LED | โ | โ | โ | โ | โ | โ | โ |
Baterry Charge LED and Chip | โ | โ | โ | โ | โ | โ | โ |
Low Power Mode | โ | โ | 5ฮผA | 5ฮผA | 44ฮผA | 14ฮผA | 26.5mA |
Programming Langusges | |||||||
Arduino | โ | โ | โ | โ | โ | โ | โ |
CircuitPython | โ | โ | โ | โ | โ | โ | โ |
MicroPython | โ | โ | โ | โ | โ | โ | โ |
Seeed Studio XIAO Series Compatible Accessoriesโ
XIAO Resourcesโ
System-on-Modules(SoM) User Manualโ

XIAO SoM User Manual opensource hardware & software resources of XIAO, providing professional product design guidelines to help you accelerate your ideas off the ground. This User Manual can provide everything needed from module selection to the final manufacturing.
Seeed Studio XIAO Starter Kit Coursesโ
This course guides you through a series of practical exercises and project-based activities. By using Seeed Studio XIAO series products, you will embark on a step-by-step journey to master Arduino, starting from the basics of LED lighting and progressing towards more advanced projects such as Arduino wearables and miniaturized device. In addition, you will learn how to quickly create a usable electronic product prototype from the course.

Seeed Studio XIAO SMAD21 Open-Source Materialsโ
[PDF] ATSAMD218A-MU datasheet
Seeed Studio XIAO RP2040 Open-Source Materialsโ
[PDF] RP2040 datasheet
Seeed Studio XIAO nRF52840 Open-Source Materialsโ
[PDF] nRF52840 datasheet
Seeed Studio XIAO nRF52840 Sense Open-Source Materialsโ
[PDF] nRF52840 datasheet
Seeed Studio XIAO ESP32C3 Open-Source Materialsโ
[PDF] ESP32C3 datasheet
Seeed Studio XIAO ESP32S3 Open-Source Materialsโ
Seeed Studio XIAO ESP32S3 Sense Open-Source Materialsโ
[DXF] Seeed Studio XIAO ESP32S3 Sense Dimension in DXF (top)
[DXF] Seeed Studio XIAO ESP32S3 Sense Dimension in DXF (bottom)
Tech Support & Product Discussionโ
Thank you for choosing our products! We are here to provide you with different support to ensure that your experience with our products is as smooth as possible. We offer several communication channels to cater to different preferences and needs.