【ION】JDY-30 = JDY-31 SPP-C Bluetooth serial pass-through module wireless serialModel: JDY-30 module = JDY-31 The same use.
Support Bluetooth SPP protocol, the transmission speed of up to dozens of K per second

Applications:
1: Bluetooth printer
2: Bluetooth POS machine
3: intelligent home control
4: Bluetooth wireless data transmission
JDY-30 manual download address: https: //pan.baidu.com/s/1jIBSbD8
Advantages: Replace all Bluetooth 3.0 and 2.0 serial communication modules on the market
Input voltage with baseplate: 3.6V-6V(5v is good)
SMD input voltage without baseplate is 1.8V-3.6V
Features:
Bluetooth V3.0 + EDR
Bluetooth Class 2
Built-in PCB radio frequency antenna
Support UART interface
3.3V power supply
Operating Frequency Band:2.4GHz -2.48GHz unlicensed ISM band
Bluetooth Specification: V2.1+EDR
Host Interface: UART