Ble bluetooth modul I2C/UART/SPI/USB/PWM/GPIO Bluetooth 4,0 low energy modul nordic nRF51822|bluetooth 4.0|bluetooth modulenordic nrf51822 - AliExpress
AT-09 komp. HM-10 Bluetooth 4.0 Board BLE Low Energy Modul CC2541 CC2540 Arduino Raspberry – MAKERSHOP.DE
BEI 09 Android IOS BLE 4,0 Bluetooth modul für arduino CC2540 CC2541 BLE Serial Wireless Modul kompatibel HM 10 HM 11|wireless module|bluetooth module 4.0ble module - AliExpress
BT900 Bluetooth Modules - Laird Connectivity | Mouser
How To Configure and Pair Two HC-05 Bluetooth Modules as Master and Slave | AT Commands - How To Mechatronics
Professionelle Bluetooth Module - LinTech GmbH
Bluetooth Modules
Bluetooth-Modul für mBot-Roboter
HC-05 Bluetooth Module - Wireless Bluetooth Serial Transceiver Modul