Accurate sensor and breadboard ready
Seeed Studio XIAO ESP32-S3 Development Board Supports Wi-Fi & Bluetooth 5.0
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The Seeed Studio XIAO ESP32-S3 Development Board is a compact and powerful ESP32 development board designed for IoT, smart home, wearable devices, and robotics projects.
Powered by a 240MHz Xtensa 32-bit LX7 dual-core processor, it supports both Wi-Fi and Bluetooth 5.0 for seamless wireless communication.
With its 2.4GHz rod antenna, reliable connectivity is ensured even in demanding environments.
The board also features an ultra-low-power deep sleep mode, consuming as little as 14μA, making it perfect for battery-powered applications.
Additionally, it includes lithium battery charging management, offering convenience for portable and energy-efficient projects.
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| Feature | ESP32-C3 | ESP32-S3 |
|---|---|---|
| CPU Architecture | Single-core RISC-V up to 160 MHz | Dual-core Xtensa LX7 up to 240 MHz |
| On-chip Memory | ~400 KB SRAM | ~512 KB SRAM with PSRAM support |
| Processing Capability | Good for basic IoT and low-power tasks | Ideal for ML, DSP, image/audio workloads |
| Wireless Features | Wi-Fi 2.4GHz + BLE 5.0 | Wi-Fi 2.4GHz + BLE 5.0 (higher throughput) |
| I/O & Peripherals | Suitable for simple sensors and projects | Supports camera, audio, ML, multi-sensor setups |
| Best Use Case | Low-power IoT nodes & BLE devices | Edge-AI, camera IoT, real-time automation |

Pair a MAX30102 pulse-oximeter and MPU6050 accelerometer with the XIAO ESP32-S3 to track SpO₂, heart rate, and step count. At just 14 μA in deep sleep, it runs all day on a small LiPo battery, ideal for compact wearable IoT devices.
Use the XIAO ESP32-S3's Bluetooth 5.0 stack to build a coin-sized BLE sensor beacon or HID peripheral keyboard emulator, proximity tag, or custom GATT service that pairs with a phone or hub.
Connect temperature, humidity, and relay modules to build a compact Home Assistant or Node-RED node. The ESP32-S3 publishes sensor data over MQTT and responds to automation commands via Wi-Fi.
Run a TensorFlow Lite model on the ESP32-S3's dual LX7 cores to classify hand gestures from an IMU in real time no cloud needed. A practical intro to on-device inference and the TinyML workflow.
| Parameter | Seeed Studio XIAO ESP32S3 |
|---|---|
| Processor | ESP32-S3R8, Xtensa LX7 dual-core, 32-bit processor running up to 240 MHz |
| Wireless | 2.4GHz Wi-Fi subsystem, Bluetooth 5.0 (BLE & Mesh) |
| On-chip Memory | 8MB Flash & 8MB PSRAM |
| Interfaces | 1x UART, 1x IIC, 1x IIS, 1x SPI, 11x GPIO (PWM), 9x ADC, 1x User LED, 1x Charge LED |
| Buttons | 1x Reset button, 1x Boot button |
| Dimensions | 21 x 17.8 mm |
| Power Input | Type-C: 5V, Battery: 4.2V |
| Operating Voltage | Type-C: 5V @ 19mA, Battery: 3.8V @ 22mA |
| Charging Current | 100 mA |
| Low Power Consumption | Modem-sleep: ~25 mA, Light-sleep: ~2 mA, Deep-sleep: ~14 μA |
| Wi-Fi Power Consumption | Active Mode: ~100 mA |
| BLE Power Consumption | Active Mode: ~85 mA |
| Working Temperature | -40°C to 65°C |
This product comes with a 1-year manufacturer warranty from the date of purchase, covering manufacturing defects only.
The product shows signs of physical damage, mishandling, exposure to water/moisture, fire, natural calamities, unauthorized repairs, improper storage near heat or direct sunlight, or alteration in any way.