Seeed Studio has introduced two new entries in its rising XIAO household of compact growth boards, each constructed round Nordic Semiconductor’s nRF54L15 system-on-chip: the XIAO nRF54L15 and nRF54L15 Sense.
“[The] XIAO nRF54L15 ([and] Sense [variant]) is a strong but compact growth board constructed round Nordic’s nRF54L15 SoC,” the corporate explains of the 2 new boards, “that includes a 128MHz Arm Cortex-M33 core with 1.5MB NVM [Non-Volatile Memory]. This thumb-sized board excels in trendy IoT [Internet of Things] functions with complete wi-fi connectivity together with BLE [Bluetooth Low Energy] 6.0, Matter, Thread, Zigbee, and Amazon Sidewalk protocols. With ultra-low energy consumption, it is excellent for battery-powered IoT gadgets.”
Seeed Studio’s tiny XIAO household grows greater with the launch of the XIAO nRF54L15 and its Sense sibling. (📷: Seeed Studio)
Seeed’s XIAO vary are notable for his or her compact dimension, slightly bigger than a thumbnail, but being constructed round fully-featured microcontrollers — and the brand new fashions aren’t any exception. The Nordic nRF54L15 features a single Arm Cortex-M33 core working at as much as 128MHz, a giant improve over the sooner XIAO nRF52840’s Cortex-M4F core working at as much as 64MHz, with a RISC-V coprocessor alongside for the experience. There’s 256kB of static RAM (SRAM), plus 1.5MB of non-volatile storage.
The board follows the same old XIAO footprint, with its general-purpose enter/output (GPIO) pins introduced out to 0.1″ headers alongside both facet. In complete, there are 16 GPIO pins, six of which might act as analogue inputs, plus two I2C, two SPI, and one UART buses. The board additionally contains bodily reset and boot buttons, a battery charging circuit with indicator LED, and a user-addressable single-color LED for standing notifications.
Given Seeed’s deal with IoT initiatives, it is no shock to see the brand new XIAO packing in loads of connectivity: the on-board radio contains help for Bluetooth 6.0 Low Vitality (BLE) and 802.15.4 protocols together with Thread, the cross-vendor Matter, and Zigbee. There’s additionally a proprietary 2.4GHz protocol, boosted to supply as much as 4Mb/s throughput, and help for Amazon’s Sidewalk, Apple’s Discover My, and Google’s Discover My Gadget ecosystems by way of the Nordic nRF Join software program growth equipment (SDK). An on-board ceramic antenna is included within the design, with the choice to make use of an exterior antenna by way of an IPEX4 connector.
Regardless of a formidable array of options, the brand new boards hold the XIAO footprint intact. (📷: Seeed Studio)
If the XIAO nRF54L15 would not fairly tick the function containers required of your new mission, in the meantime, there’s the XIAO nRF54L15 Sense — the identical growth board, however now with an on-board digital microphone and a six-axis inertial measurement unit (IMU). All different specs are the identical between the 2 fashions.
The XIAO nRF54L15 and XIAO nRF54L15 Sense are actually out there on the Seeed Studio retailer, priced at $9.90 and $15.99 respectively. Extra info is on the market on the Seeed wiki.
