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| layout | board_id | title | name | manufacturer | board_url | board_image | date_added | family | downloads_display | features | |||||
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| download | Seeed_XIAO_nRF52840_Sense | Seeed Studio XIAO nRF52840 Sense Download | Seeed Studio XIAO nRF52840 Sense | Seeed Studio | https://www.seeedstudio.com/Seeed-XIAO-BLE-Sense-nRF52840-p-5253.html | Seeed_XIAO_nRF52840_Sense.jpg | 2021-12-29 | nrf52840 | true |
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Seeed Studio XIAO nRF52840 Sense has equipped a powerful Nordic nRF52840 MCU which is designed in a Bluetooth 5.0 module, built around 32-bit ARM® Cortex™-M4 CPU with Floating-Point Unit(FPU) operating at 64Mhz. With the capabilities of wireless connection, it still remains the Seeed Studio XIAO series classic form-factor of small and exquisite which can be used for wearable devices and Internet of Things projects. Furthermore, it only costs 5 μA in the deep sleep model and it supports battery charge management because of the BQ25101 chip.
In addition, it carries two extra onboard sensors. One of them is a digital microphone created through Pulse Density Modulation(PDM) module on the nRF52840 chip. It can receive audio data in real-time which allows it can be used for audio recognition. The board not only receives audio data but also can speak through the MSM261D3526H1CPM microphone. The other one is 6-axis Inertial Measurement Unit(IMU) which can be applied in TinyML projects like gesture recognition. These onboard sensors provide a great convenience for users and the ultra-small size feature of the board has still remained.
Seeed Studio XIAO nRF52840 Sense contains a wealthy interface. The first thing to note is that the Near Field Communication(NFC) is functional on the board. Secondly, there is a tiny and elegant reset button on one side of the Type-C interface. On the other side, it is designed in a three-in-one LED along with a power LED. There are 11 digital i/o that can be used as PWM pins and 6 analog i/o that can be used as ADC pins. It supports UART, IIC, and SPI all three common serial ports. Same as Seeed Studio XIAO RP2040, it has an onboard 2 MB flash which means it can also be programmed by Arduino, MicroPython, CircuitPython, or other program languages.
- Bluetooth 5.0
- NFC
- 21 x 17.5mm tiny board
- 5 μA power consumption in deep sleep model
- Battery Charging
- built-in 2 MB flash, microphone and 6-axis IMU