5pcs 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 equipment Parameter: Model: JDY-31 Working frequency band: 2.4GHZ Communication interface: UART Operating voltage: 1.8-3.6V (3.3V recommended) Working temperature: -40 C - 80 C Antenna: Built-in PCB antenna Transmission distance: 30 meters Master-slave support: slave Module size: 19.6 * 14.94 * 1.8 mm (length, width, height) bluetooth version: bluetooth 3.0 SPP STM soldering temperature: