The Core module is HC-06 Wireless bluetooth 2.0 serial module. By using this HC06 Bluetooth module , you can quickly add Bluetooth features to your wireless DIY Project. The factory setting is slave mode,default Baud Rate: 9600 , PIN: 1234
Please note:
This is a classic Bluetooth 2.0 module, it is not compatible with iphone or ipad, If you need to use iphone or ipad to control your Raspberry PI. You may need a Bluetooth 4.0 BLE module (such as SH-HC-08 Bluetooth 4.0 ble module)
ABOUT WARRANTY:
DSD TECH back this HC 06 module with ONE YEAR WARRANTY. If you meet any question, please contact us, we will fix your issue within 24 hours.