TCA10FR-2400

HC-08 is a module operating in the Bluetooth Low Energy 4.0 standard. The system has a built-in antenna and small dimensions, and thanks to edge joints it can be surface soldered. The module is configured via AT commands

Bluetooth module with built-in CC2541 chip. The module is small, energy-saving and easy to use

PmodBT2 - Bluetooth Interface

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

Powerful, generic Wi-Fi+BT+BLE MCU modules that target a wide variety of applications, ranging from low-power sensor networks to the most demanding tasks, such as voice encoding, music streaming and MP3 decoding. Espressif ESP32-WROOM-32E 32MBit (4MB)

An integrated module combining WiFi, Bluetooth 4.0 and FM radio. It has derived SDIO, UART and PCM interfaces. Ampak AP6335

USB adapter for PC, allowing Bluetooth v4.0 communication with speeds up to 3Mb / s and range up to 20m

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

The BLE Nano from RedBearLab is the smallest Bluetooth 4.1 Low Energy (BLE) development board on the market. With the included MK20 USB in this kit, you’ll be able to deploy firmware to BLE Nano even easier. WRL-14071/WRL-13730

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

A compact development board that uses the ESP32-PICO-MINI chip. It provides wireless communication via Bluetooth and serves as an easy-to-configure UART converter. It has a built-in PCB antenna. SparkFun WRL-24113

A compact development board that uses the ESP32-PICO-MINI chip. It provides wireless communication via Bluetooth and serves as an easy-to-configure UART converter. It has a built-in PCB antenna. SparkFun WRL-23287

The ESP32 WiFi and Bluetooth module has a dual-core 32-bit MCU that integrates WiFi HT40 and Bluetooth / BLE 4.2 technology. Designed for mobile devices and Internet of Things (IoT) applications. DFRobot TEL0111

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

Adafruit 2267 - Bluefruit LE Friend - Bluetooth Low Energy (BLE 4.0) - nRF51822