BLE Mate 2

Bluetooth 4.0 dongle as a USB adapter. Works with bluetooth devices such as speakers, headsets, smartphones, tablets, keyboards, mice, printers, projectors etc.

Wireless connectivity module based on the CYW43439, providing Wi-Fi and Bluetooth for projects with RP2040 or RP2350 microcontrollers. Equipped with an SP/CE (JST-SH 8-pin) connector, it allows for quick, solderless connection, and optional pads allow for permanent wired connections. It is fully compatible with Pico W and ideal for IoT, automation, and mobile applications. Pimoroni PIM730

An efficient Bluetooth 4.0 module that ensures excellent operating parameters and significantly increases the efficiency of wireless communication. It is based on the popular Nordic BLE 4.0 nRF51822 microcontroller, which guarantees both performance and low power consumption. It has a built-in Bluetooth stack and is controlled via the UART interface using AT commands. WT51822-S4AT

An advanced wireless communication module based on the Bluetooth 5.2 (Bluetooth® Low Energy, BLE) stack, which is designed using the powerful Nordic nRF5340 SoC. It provides GPIO, SPI, UART, TWI, I2C, PDM, PWM, ADC, NFC and USB interfaces for connecting peripherals and sensors. SparkFun WRL-25465

The BLE 4.0 Bluetooth module with CC2540 allows for transmission in both Slave and Master modes. It has an integrated PCB antenna and an extensive security system. modCC2540

BLE Beacon, which emits Bluetooth Low Energy signals, enabling discovery by Bluetooth devices such as smartphones or ESP32 without the need for pairing. With a built-in I2C interface and an 11-bit ADC, it allows data collection from various sensors, and its low power consumption (650nA in sleep mode) ensures long-lasting operation on a single battery, ideal for applications requiring mobility and long range. DFRobot TEL0168

Development board with LoRa Semtech SX1262 module and Apollo 3 Bluetooth 5 integrated in the NM180100 chip. It supports the 868 MHz and 915 MHz bands and Bluetooth Low Energy. It is compatible with the Qwicc system. SparkFun 17506

Bluetooth 5 module with nRF52840 chip. It is based on the ARM Cortex-M4 core with 1 MB Flash memory and 256 KB RAM memory. It is equipped with a USB interface. SparkFun DEV-15025

The IoT module combining Wi-Fi and Bluetooth (BLE) technologies, which is designed for a wide range of applications, from low-power sensor networks to the most demanding tasks such as voice coding, music streaming and MP3 decoding. Espressif ESP32-WROOM-32D 128MBit

Bluetooth 4.0 module based on the CSR8635 chip designed for Bluetooth audio applications. The module has a built-in antenna and pins for edge connectors.

Adafruit 2479 - Bluefruit LE UART Friend - Bluetooth Low Energy (BLE)

Evaluation Kit with Bluetooth 5.0 BT401. It is equipped with a microSD slot, microUSB connector and two audio outputs. DFRobot DFR0782

The module is compatible with the Grove Base Shield and designed to implement a wireless serial connection. It uses Bluetooth 4.0 (BLE) HM-11 and UART communication. Seeed Studio 113020008

The BLE 4.0 Bluetooth module with the CC2541 system has an integrated PCB antenna and an extensive AES security system. Thanks to the built-in system CC2541 from Texas Instruments, it is possible to create a project without the use of an additional microcontroller. modCC2541

The evaluation kit designed for the nRF51822 Bluetooth 4.0 system consists of the BLE400 base board and the Core51822 wireless module with the nRF51822 chip. Waveshare NRF51822 Eval Kit