$4.6MIL PRE-SEED ANNOUNCEMENT

Bluetooth

Choose between BLE modules, XIAO wireless dev boards, UART/SPI bridge boards and debugging tools without assuming the Bluetooth label makes them interchangeable.

nRF52840 BLE modules

BLE 5.x · castellated/module

Embedded Nordic nRF52840 radio modules. Compare antenna/package, footprint, certification and firmware target before treating them as alternatives.

from $8.955 boards

XIAO wireless dev boards

XIAO · BLE / Matter / Thread

Tiny controller boards with radio, bootloader, headers and board-level power hardware. Good for compact controller designs, not bare-module drop-ins.

from €8.824 boardsIn stock

BLE bridge and shield boards

UART / SPI / USB / Arduino shield

Boards that bridge another host to BLE. Match the host interface and library before swapping UART, SPI, USB and Arduino shield formats.

from $9.905 boardsIn stock

Can I swap these?

Pick the board you have - we'll show what we know about swapping it.

Known swap options (1)

General board checks (6)
  • Confirm the job first: embedded radio module, XIAO-style controller board, Arduino shield, serial BLE bridge, USB bridge, sniffer/debug tool or development motherboard.
  • Match BLE generation and wireless stack: BLE 4.x, BLE 5.x, nRF52, MG24, Matter and Thread are not interchangeable labels.
  • Check host interface and software model: UART AT commands, SPI, USB, native MCU firmware, Arduino core, CircuitPython, MicroPython or vendor firmware.
  • Check footprint, headers, XIAO pinout, castellated pads, antenna keep-out, enclosure clearance and power supply before calling a board-level swap acceptable.
  • Do not replace an application module with a BLE sniffer or development carrier. Those are tools and evaluation hardware, not drop-in product radios.
  • For shipped products, review RF module approval, antenna assumptions and firmware maintenance before changing module variants.

Parts in this group

nRF52840 BLE modules

MDBT50Q-1M nRF52840 Based BLE Module

nRF52840-based BLE 5.0 module with peripheral interfaces including GPIO, SPI, UART, I2C, I2S, PWM, ADC, NFC and USB. Treat as an embeddable module, not a plug-in carrier.

MDBT50Q-P1M nRF52840 Based BLE Module

Related nRF52840-based BLE 5.0 module variant. Likely same broad silicon family as MDBT50Q-1M, but antenna/package and layout details still need exact-page checks.

nRF52840 Bluetooth® Low Energy Module with USB

nRF52840 BLE module with USB support. Same broad Nordic BLE family as MDBT50Q-style modules, but footprint, antenna, bootloader and certification details must be checked before substitution.

$12.95

Nordic nRF52840 BLE Module (MDBT50Q-1MV2)

Raytac MDBT50Q-1MV2 nRF52840 BLE module from SparkFun. Related to other MDBT50Q/nRF52840 modules, but use the exact package and antenna variant from the source page.

$8.95

nRF52832 Bluetooth® Low Energy Module

nRF52832 BLE module. Same broad Nordic BLE direction as nRF52840 modules, but lower/different silicon family and not a blind drop-in replacement.

$9.95

XIAO wireless dev boards

Seeed Studio XIAO nRF52840

XIAO-format nRF52840 BLE dev board with onboard antenna and battery-charging support. Related to nRF52840 module designs, but the XIAO pinout, bootloader and board hardware make it a board-level redesign.

€11.48

Seeed Studio XIAO nRF52840 Sense

XIAO nRF52840 Sense adds onboard sensing hardware such as microphone and 6-axis IMU. Treat it as a tinyML/sensing dev board, not the same part as the base XIAO nRF52840.

€17.29

XIAO MG24 - Matter Native over Thread / BLE 5.3

XIAO MG24 board for Matter-native over Thread plus BLE 5.3 designs. It belongs in the XIAO wireless dev-board family but is not firmware-equivalent to nRF52840 BLE boards.

€8.82

XIAO MG24 Sense - Matter Native over Thread / BLE 5.3

XIAO MG24 Sense variant for Matter/Thread/BLE designs with extra onboard sensing. Similar board outline to MG24, but sensor payload and firmware target still need exact-design review.

€11.85

BLE bridge and shield boards

Adafruit Bluefruit LE UART Friend - Bluetooth® Low Energy

Bluefruit LE UART Friend. Useful when the design wants a UART-connected BLE breakout; not interchangeable with SPI, USB dongle or bare module formats without wiring/firmware review.

$17.50

Adafruit Bluefruit LE SPI Friend - Bluetooth® Low Energy

Bluefruit LE SPI Friend. BLE breakout for SPI-connected designs; not a drop-in for UART Bluefruit or bare nRF52 modules.

$17.50

Bluefruit LE Friend - Bluetooth Low Energy (BLE 4.0) - nRF51822 - v3.0

Bluefruit LE Friend is a USB-to-BLE bridge-style board. Useful for computer-to-BLE workflows, but not interchangeable with UART Friend, SPI Friend or embedded radio modules without interface changes.

£19.80

Adafruit Bluefruit LE Shield - Bluetooth® LE for Arduino

Bluefruit LE Shield for Arduino. Arduino shield form factor; convenient for compatible Arduino boards, but mechanically different from compact BLE modules and friends.

$19.95

Bluno Bee - Turn Arduino to a Bluetooth 4.0 (BLE) Ready Board

Bluno Bee BLE board for XBee-style sockets and Arduino workflows. Treat as a carrier/module class, not a direct substitute for bare BLE modules.

$9.90

BLE 4.x dev boards and modules

Bluetooth 4.0 Low Energy - BLE Mini

Older Bluetooth 4.0 Low Energy Mini board. Useful as a BLE breakout/prototype board, not a drop-in replacement for an nRF52840 module.

Bluetooth V4.0 HM-11 BLE Module - Seeed Studio

HM-11 Bluetooth 4.0 BLE module. Older BLE module class; compare UART/AT firmware, voltage and pinout before replacing Bluefruit or nRF52 modules.

Beetle BLE - The smallest Arduino Bluetooth 4.0 (BLE)

Arduino-compatible Bluetooth 4.0 BLE board based on the DFRobot Beetle BLE listing. Useful as a tiny controller board, not a replacement for bare nRF52 modules or USB/SPI/UART bridge boards.

€17.53

Seeed Tiny BLE - BLE + 6DOF Mbed Platform

Tiny BLE / nRF51822-era BLE plus 6DOF mbed platform board. Treat as a legacy dev-board option, not a drop-in for nRF52840 or MG24 wireless platforms.

€24.19