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Seeed Studio XIAO nRF52840 Sense AIoT Development Board
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The ELECROW ESP32 Terminal is a compact IoT development device that combines an ESP32-S3 module, 3.5-inch SPI TFT capacitive touch display, and OV2640 camera in a single platform. Designed for beginners, students, makers, and professional developers, it provides the hardware and software flexibility needed to build interactive IoT, smart home, embedded, and computer vision projects.
The 3.5-inch 320 × 480 touch display provides a convenient interface for creating interactive dashboards, control panels, and custom graphical user interfaces. The integrated OV2640 camera adds support for applications such as image capture, face recognition, object recognition, and scene recognition.
With 2.4 GHz Wi-Fi and Bluetooth 5 (LE), the ESP32-S3 provides wireless connectivity for connected applications without requiring additional communication hardware. The terminal also supports Arduino, ESP-IDF, LVGL, PlatformIO, and MicroPython, giving developers multiple options for programming and UI development.
The built-in Crowtail interfaces make it easier to connect compatible sensors and modules, while interfaces such as UART, SPI, I2C, PWM, and I2S provide flexibility for hardware expansion. USB-C and polymer lithium battery power options also make the terminal suitable for both desktop development and portable IoT projects.
The XIAO Nordic nRF52840 Sense combines wireless connectivity, onboard sensing, processing capability, and low-power operation in a thumb-sized development board. Instead of requiring separate modules for basic motion and audio sensing, the integrated IMU and microphone provide these capabilities directly on the board.
Its compact form factor makes it particularly useful for wearable devices, portable sensor nodes, embedded Machine Learning projects, and other space-constrained applications.
Looking to buy the Seeed Studio XIAO Nordic nRF52840 Sense Module? At Robocraze, the board is available at ₹1,753, reduced from ₹2,499, with offers and availability subject to change.
Robocraze provides technical support, secure packaging, GST invoices, fast shipping, and after-sales assistance to help developers, students, makers, and businesses purchase development hardware with confidence.
IoT Developers: Build compact wireless sensor nodes and connected devices using BLE 5.0.
AIoT Developers: Develop intelligent applications using onboard motion and audio sensing.
Wearable Developers: Create small, low-power wearable and activity-monitoring devices.
Students: Learn embedded systems, Bluetooth development, and sensor-based programming.
Makers: Experiment with TinyML, gesture recognition, sound detection, and smart-device projects.
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The Nordic nRF52840 provides processing performance of up to 64 MHz with an FPU and supports Arduino and CircuitPython, giving developers flexibility when building embedded applications.
Built-in Bluetooth 5.0 and BLE connectivity allows the board to communicate wirelessly with smartphones, gateways, and other IoT devices without requiring a separate wireless module.
The onboard 6-axis IMU detects motion, orientation, gestures, and vibration patterns, making it useful for robotics, wearable devices, activity tracking, and sensor-based Machine Learning projects.
The integrated digital microphone enables audio sensing, sound detection, keyword spotting, and always-on audio applications while reducing the need for an external microphone module.
With deep-sleep power consumption of only 5 μA and lithium battery charge management, the board is suitable for battery-powered IoT, wearable, and portable applications.
Measuring just 21 × 17.8 mm, the board can be integrated into compact devices and space-constrained embedded projects without sacrificing essential sensing and wireless capabilities.
NFC support provides another wireless interface for compatible applications and expands the connectivity options available to developers.
The XIAO Nordic nRF52840 Sense integrates motion and audio sensing directly onto the development board, making it suitable for compact AIoT and embedded Machine Learning projects.
6-Axis IMU: Detect motion, orientation, gestures, and vibration patterns.
PDM Microphone: Capture sound for audio detection, keyword spotting, and trigger-based applications.
Sensor Fusion: Combine motion and audio data for intelligent embedded applications.
BLE 5.0: Wirelessly transmit sensor data to smartphones, gateways, and IoT hubs.
Use the onboard IMU to detect gestures and movement, enabling applications such as mode switching, device control, and interactive wearable interfaces.
The PDM microphone can be used for sound detection, keyword spotting, and audio-triggered applications in smart devices and environmental monitoring systems.
Motion data from the 6-axis IMU can help developers create applications for activity monitoring, step tracking, movement detection, and fall-event experimentation.
The onboard IMU can be used in battery-powered sensor nodes to monitor vibration patterns and identify changes in equipment or machinery.
Sensor information can be transmitted wirelessly through BLE to nearby smartphones, gateways, or IoT systems for further processing and monitoring.
| Item | Specification |
|---|---|
| Product | Seeed Studio XIAO nRF52840 Sense |
| Processor | Nordic nRF52840, ARM® Cortex®-M4 with FPU, up to 64 MHz |
| Wireless | Bluetooth 5.0, NFC |
| On-chip Memory | 1 MB Flash, 256 kB RAM |
| Onboard Memory | 2 MB QSPI Flash |
| Interfaces | 1× UART, 1× I²C, 1× SPI, 1× NFC, 1× SWD, 11× GPIO (PWM), 6× ADC |
| Sensors | Onboard PDM Digital Microphone, Onboard 6-axis IMU |
| Dimensions | 21 × 17.8 mm |
| Power | Operating voltage: 3.3V @ 200mA Charging current: 50mA / 100mA Input voltage (VIN): 5V Standby power consumption: <5 μA |
The ELECROW ESP32 Terminal is designed for IoT, embedded development, smart home systems, industrial monitoring, robotics, and interactive electronics projects. It combines an ESP32-S3 controller, 3.5-inch touch display, OV2640 camera, wireless connectivity, and multiple expansion interfaces in one platform. This makes it suitable for building dashboards, camera-based applications, sensor monitoring systems, custom interfaces, and other connected devices.
Yes. The ESP32-S3 module provides 2.4 GHz Wi-Fi and Bluetooth 5 (LE). This allows the terminal to connect wirelessly to networks, devices, and IoT systems without requiring separate Wi-Fi or Bluetooth modules.
The ELECROW ESP32 Terminal features a 3.5-inch SPI TFT capacitive touch display with a 320 × 480 resolution. The touchscreen can be used to create interactive menus, dashboards, control panels, and graphical user interfaces for IoT and embedded projects.
Yes. The terminal includes an OV2640 2 MP camera. The camera can be used for image capture and projects involving face recognition, object recognition, scene recognition, video monitoring, and other computer vision applications.
The ELECROW ESP32 Terminal supports Arduino, ESP-IDF, LVGL, PlatformIO, and MicroPython. This allows beginners to start with accessible development environments while giving experienced developers flexibility to create custom firmware, graphical interfaces, and embedded applications.
Yes. The terminal includes six Crowtail interfaces that support convenient connection of compatible Crowtail sensors and modules. It also provides UART, SPI, I2C, PWM, and I2S interfaces for connecting additional embedded hardware and peripherals.
You can build IoT dashboards, smart home controllers, sensor monitoring systems, video surveillance devices, face and object recognition projects, voice-controlled applications, and custom embedded interfaces. Its display, camera, wireless connectivity, and expansion interfaces provide a flexible platform for prototyping connected devices.
The ELECROW ESP32 Terminal is available at Robocraze for ₹4,329, reduced from the listed price of ₹6,499 at the time of writing. Pricing, discounts, and stock availability may change depending on current offers.
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.
Seeed Studio XIAO Nordic nRF52840 Sense Module
The modules performance in Bluetooth communication was exceptional. Delivery service was quick, and I appreciated Seeeds careful packaging. Ideal choice for embedded systems development. The boards tiny yet powerful design allows smooth integration with multiple peripherals.
Very smooth buying experience with instant shipping updates. The board came with no solder issues. Bluetooth Low Energy works reliably. I tested accelerometer readings and sensitivity calibration, both worked superbly. Great communication from Seeed Studio staff.
Received my order earlier than expected. This board combines sensor accuracy with impressive processing power. Integration with Arduino IDE and CircuitPython worked immediately. The packaging was professional, and Seeed Studio ensured a pleasant overall customer experience.
Had a question about sensor calibration, and support answered within hours. Excellent customer experience with Seeed. Product arrived in perfect shape without any defects. The documentation was very descriptive and made testing straightforward.
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It is Amazing and great item in this price
Veri usefull and cheap price from other shopping site, I use this module many project. Thank you robocraze
Components are good - nice packing
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While the product has always been good and have never found a faulty one, the experience of purchase from Robocraze has also always been a wonderful one. On time delivery, well packaged, no follow up or reminder, easy tracking etc. Great work team, keep it up !!
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