Super Debug 5 Pcs HC 05 Silicone Bluetooth Transceiver Module (Multicolor, 4.5 x 0.5 x 1.5 cm), Pack of 5 HC05 Micro Controller Board Electronic Hobby Kit

Serial port Bluetooth, Drop-in replacement for wired serial connections, transparent usage. You can use it simply for a serial port replacement to establish connection between MCU and GPS, piece to your embedded project and etc. HC-05 has be designed Master or Slave when the factory, user couldn't change the role. Paired with computer use: for computers and devices via Bluetooth serial communication, use serial paired with the phone use: suitable for the mobile phone with the device through Bluetooth serial communication, use serial paired with the Bluetooth host: for the two devices directly through the Bluetooth serial communication between the microcontroller and the microcontroller wired serial interface with microcontroller between use with serial.