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XIAO Series

Confused About Xiao Series? Start Here

Ever bought the wrong part and your project just didn’t work? When it comes to xiao series, choosing correctly really matters. This collection helps you avoid that problem by showing options that are actually used in real builds. In this xiao series collection, we’ve grouped useful options so you don’t have to search everywhere. This makes it easier to focus on building instead of troubleshooting basic issues. Find the right one and move your project forward.

Seeed Studio XIAO — Full Comparison Table:

Feature	XIAO ESP32C3	XIAO ESP32S3	XIAO RP2040	XIAO nRF52840	XIAO SAMD21	XIAO ESP32C6
Processor	ESP32-C3 (32-bit RISC-V, Single-core)	ESP32-S3 (Dual-core Xtensa LX7)	RP2040 (Dual-core ARM Cortex-M0+)	nRF52840 (ARM Cortex-M4F)	ATSAMD21G18 (ARM Cortex-M0+)	ESP32-C6 (Single-core RISC-V)
Clock Speed	160 MHz	240 MHz	133 MHz	64 MHz	48 MHz	160 MHz
Wireless	WiFi 2.4GHz, BLE 5.0	WiFi 2.4GHz, BLE 5.0	No	BLE 5.0, Thread	No	WiFi 6, BLE 5.2, Thread, Matter
Flash	4 MB	8 MB Flash + 8 MB PSRAM	2 MB	1 MB	256 KB	4 MB
PSRAM	No	Yes (8 MB)	No	No	No	No
SRAM / RAM	400 KB	512 KB	264 KB	256 KB	32 KB	512 KB
USB Type	USB-C (USB 2.0)	USB-C (USB 2.0 + OTG)	USB-C	USB-C	USB-C	USB-C
GPIO Pins	11	11	11	11	11	11
Analog Inputs	4	4	3	6	6	4
PWM Pins	11	11	11	11	11	11
I²C / UART / SPI	Yes / Yes / Yes	Yes / Yes / Yes	Yes / Yes / Yes	Yes / Yes / Yes	Yes / Yes / Yes	Yes / Yes / Yes
Security Features	ECC & RSA hardware acceleration	Advanced security + vector instructions	No	ARM CryptoCell 310	No	Improved WiFi6 security
Power Consumption	Low	Medium	Ultra-Low	Ultra-Low	Low	Medium
Best For	Low-cost IoT, WiFi + BLE	AI-vision, IoT, WiFi + BLE	Hobby projects, robotics	Wearables, BLE, ultra-low-power	Learning & basic IoT	Matter/Thread IoT, WiFi 6

Project Ideas:

1. Wearable Activity Tracker

What You’ll Learn: Bluetooth Low Energy (BLE) communication, IMU sensor reading, and low-power wearable design.

Components Needed:

XIAO nRF52840 (or XIAO ESP32C3)
MPU6050 / LSM6DS3 IMU sensor
Small Li-Po battery
Soft wires / wearable strap
Optional: MAX30205 temperature sensor

Steps:

Connect the IMU’s SDA and SCL pins to the XIAO’s I²C pins.
Install the Arduino BLE library and IMU sensor libraries.
Read acceleration/gyro values and send them over BLE to a smartphone app.
Display steps or activity level using LEDs or a mobile dashboard.

Key Concept: Wearables rely on IMU-based motion tracking and BLE broadcasting for ultra-low-power data transfer.

2. Mini AI Camera (Object Detection)

What You’ll Learn: Edge AI, image capture, and running ML models on microcontrollers.

Components Needed:

XIAO ESP32S3 Sense (with built-in camera)
USB-C cable
MicroSD card (optional for saving images)

Steps:

Install the ESP32S3 board package in the Arduino IDE or PlatformIO.
Load an ESP-DL or TensorFlow Lite example (face detection/object detection).
Upload the sketch and open the serial/stream viewer.
The camera will detect faces or objects and return labels in real time.
Optionally store detected images to SD card or trigger an LED alert.

Key Concept: The ESP32S3 uses AI acceleration instructions to run lightweight ML models directly on-device.

3. Environmental Sensor Hub

What You’ll Learn: Multi-sensor integration, environmental monitoring, and IoT data logging.

Components Needed:

XIAO RP2040 or XIAO ESP32C6
SHT31/DHT20 (temperature & humidity)
PMS5003 (air quality PM2.5)
MQ-135 (gas/VOC sensor)
OLED display (I²C)
Jumper wires + USB power

Steps:

Wire each sensor to the XIAO using I²C/UART as required.
Install libraries for temperature, humidity, and air quality sensors.
Read all sensor values and display them on the OLED screen.
For IoT versions, send data to a cloud dashboard via WiFi or MQTT.
Add threshold alerts (e.g., LED turns red when air quality is poor).

Key Concept: A sensor hub uses multi-sensor fusion, combining readings from multiple modules to give complete environmental data.

XIAO Series Compatible Products:

Grove Vision AI Module V2| Grove Long Range LoRa Module| Grove Beginner Kit| Jetson AGX Orin H01 Developer Kit| Leju Robot AI Kit

1. What makes the XIAO Series ideal for IoT and AI projects?

The XIAO boards are very compact yet packed with power and connectivity, making them well suited for IoT and AI projects. They often include features like wireless connectivity (WiFi/Bluetooth), rich GPIO options, low-power operation and support for modern programming frameworks. Their small size means they can be embedded into devices, wearables or robots where space is tight.

2. Which XIAO board is best for beginners in electronics?

For beginners, one of the simpler XIAO boards — for example one based on the SAMD21 or the RP2040 — is a great start. These use well-supported ecosystems, have simpler connectivity, and many beginners find the learning curve gentler. Starting with one of these puts you in a good place before moving to the wireless or AI-enabled variants.

3. Can I use XIAO boards with Arduino and MicroPython?

Yes — these boards support multiple development environments including Arduino IDE and MicroPython (and often CircuitPython as well). This gives you flexibility: you can program in the familiar Arduino style or switch to Python for quick prototyping, which helps when you’re doing IoT or AI experiments.For beginners, one of the simpler XIAO boards — for example one based on the SAMD21 or the RP2040 — is a great start. These use well-supported ecosystems, have simpler connectivity, and many beginners find the learning curve gentler. Starting with one of these puts you in a good place before moving to the wireless or AI-enabled variants.

4. How do I choose between XIAO ESP32 and XIAO RP2040?

When selecting between the wireless-enabled ESP32 variant and the RP2040 variant, choose the XIAO ESP32 if you need WiFi and Bluetooth connectivity, IoT applications with network access, or more advanced features like embedded ML or wireless communication. Choose the XIAO RP2040 if you want a very small, efficient board, maybe for sensor-nodes, simple robotics, low-power projects or where connectivity isn’t the primary need. In short: connectivity + wireless → ESP32 variant; minimal size + simplicity → RP2040 variant.

5. Is the XIAO small enough to hide in my robot’s secret compartment?

Absolutely. The XIAO boards are designed to be ultra-compact (thumb-sized or smaller) and fit into tight spaces. If your robot has a secret compartment or compact electronics bay, a XIAO board is very likely small enough to tuck away discreetly while still providing full control and connectivity.

XIAO Series

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Availability

Price

Featured Products

Confused About Xiao Series? Start Here

All About XIAO Series

Seeed Studio XIAO — Full Comparison Table:

Project Ideas:

1. Wearable Activity Tracker

2. Mini AI Camera (Object Detection)

3. Environmental Sensor Hub

XIAO Series Compatible Products:

Frequently Asked Questions

1. What makes the XIAO Series ideal for IoT and AI projects?

2. Which XIAO board is best for beginners in electronics?

3. Can I use XIAO boards with Arduino and MicroPython?

4. How do I choose between XIAO ESP32 and XIAO RP2040?

5. Is the XIAO small enough to hide in my robot’s secret compartment?

Absolutely. The XIAO boards are designed to be ultra-compact (thumb-sized or smaller) and fit into tight spaces. If your robot has a secret compartment or compact electronics bay, a XIAO board is very likely small enough to tuck away discreetly while still providing full control and connectivity.

Let customers speak for us

XIAO Series

Categories

Refined By Clear all

Availability

Price

Featured Products

Sort by:

Confused About Xiao Series? Start Here

All About XIAO Series

Seeed Studio XIAO — Full Comparison Table:

Project Ideas:

1. Wearable Activity Tracker

2. Mini AI Camera (Object Detection)

3. Environmental Sensor Hub

XIAO Series Compatible Products:

Frequently Asked Questions

1. What makes the XIAO Series ideal for IoT and AI projects?

2. Which XIAO board is best for beginners in electronics?

3. Can I use XIAO boards with Arduino and MicroPython?

4. How do I choose between XIAO ESP32 and XIAO RP2040?

5. Is the XIAO small enough to hide in my robot’s secret compartment?

Absolutely. The XIAO boards are designed to be ultra-compact (thumb-sized or smaller) and fit into tight spaces. If your robot has a secret compartment or compact electronics bay, a XIAO board is very likely small enough to tuck away discreetly while still providing full control and connectivity.

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