HM-10 Arduino Serial Bluetooth 4.0 Module
You can easily communicate your Arduino with your iOS and Android smart devices using the Bluetooth 4.0 module. The module operates at 5V. The RX, TX, and voltage pins are soldered onto the board for ease of use. It can be used with many development boards and microcontrollers in addition to Arduino. It can be preferred in IoT projects due to its low energy consumption.
Bluetooth 4.0 Serial Module - Arduino Technical Specifications
Bluetooth Protocol: Bluetooth 4.0
2.4GHz communication frequency
Sensitivity: ≤-93 dBm
Output Power: ≤3 dBm
Asynchronous Speed: 2.1 MBps/160 KBps
Synchronous Speed: 1 MBps/1 MBps
Security: Authentication and Encryption
Operating Voltage: 5V DC
Current: 50 mA
Dimensions: 40x18x7mm