3pcs JDY-31 bluetooth Module 2.0/3.0 SPP Protocol Android Compatible With HC-05/06 JDY-30

Introduction JDY 31 bluetooth is based on bluetooth 3 0 SPP design which can support Windows Linux android data transmission working frequency band 2 4GHZ modulation mode GFSK maximum transmission power 8db maximum transmission distance 30 meters support users to modify device name through AT command The baud rate and other instructions are convenient and quick to use Applications JDY 31 is a classic bluetooth protocol that can communicate with bluetooth enabled computers desktops notebooks and mobile phones android Can be applied Windows computer bluetooth serial port transparent transmission Android bluetooth serial port transparent transmission Smart home control Automotive ODB testing equipment bluetooth toy Share mobile power share weight Medical equipmentParameter Model JDY 31Working frequency band 2 4GHZCommunication interface UARTOperating voltage 1 8 3 6V 3 3V recommended Working temperature 40C 80CAntenna Built in PCB antennaTransmission distance 30 metersMaster slave support slaveModule size 19 6 14 94 1 8 mm length width height bluetooth version bluetooth 3 0 SPPSTM soldering temperature 260CUnconnected operating current 4 7mACurrent after BLE connection 7 3mATransmitting power 8db maximum Receive sensitivity 97dbmSPP maximum throughput 16K bytes s android windows Package includes 3 x JDY 31 module