Bluetooth 4.0 Module Core51822 (nRF51822) - Waveshare 9515

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

Bluetooth 2.1+EDR module for mounting in SMD technology with a fully configurable UART interface (transfer speed up to 2 Mb/s). SparkFun WRL-12575

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

Waveshare BLE4.0 Bluetooth 2.4G Mother Board, provides I/O expansion connectors and various interfaces. BLE400

Bluetooth module v2.0 + EDR (master / slave), controlled by AT + commands with built-in antenna.

The Microchip RN4020 module is an energy-saving Bluetooth v4.1 module with a built-in antenna; transmit power level + 7dBm, AES128 coding

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

2.4 GHz Bluetooth 4.0 communication module, based on the nRF51822 system. Designed for applications with low energy consumption.

A development board that combines the u-blox NINA-B306 Bluetooth module, the ISM330DHCX 6DoF IMU sensor, and the BME280 atmospheric pressure sensor. It has a built-in Qwiic connector and LiPo battery connector as well as a charger and LiPo parameters monitor. SparkFun WRL-20854

Miniature antenna for 2.4GHz band, RoHS

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

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

Board with the Artemis chip, the GNSS ZOE-M8Q module and the Iridium 9603N satellite receiver. It allows you to send and receive short messages with data anywhere in the world. SparkFun WRL-18712

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

P-NUCLEO-WB55

Compact, low-power 2.4 GHz Bluetooth Beacon solution, ideal for sensor monitoring, asset tracking, and real-time location. With extremely low power consumption, it can operate for years on a 3V button cell battery, making it an efficient choice for IoT applications. Configuration of the module is simple and intuitive thanks to the InPlay NanoBeacon Config Tool, which enables easy programming without the need to write code, providing a user-friendly graphical interface to set the device parameters. SparkFun WRL-21293