HM-11 Bluetooth 4.0 BLE Module with 6-PIN Board Compatible with iOS Devices

HM-11 Bluetooth 4.0 BLE Module with 6 PIN Board Compatible with iOS Devices f...

HM-10 Bluetooth 4.0 BLE iBeacon UART Module with 4PIN Base Board for Arduino ...

2.0 with Arduino Shield- Connect to your with Arduino R3 board & your 2.0 Mus...

HM-10 Bluetooth 4.0 BLE iBeacon UART Module with 4PIN Base Board for Arduino ...

HM-10 Bluetooth 4.0 BLE Ibeacon UART Module with 4PIN Base Board for Arduino UNO

12PCS TCA9548A I2C IIC Multiplexer Breakout Board Module 8 Channel Expansion Dev