The Core Module Uses HC-06 Slave Module, and the Leading Interfaces Include VCC,GND,TXD and RXD. The LED Status Output Pin is Reserved

LED Indicates the Status of Bluetooth Connection. Blinking Indicates that There is No Bluetooth Connection; Steady On Indicates that the Bluetooth is Connected and the Port is Opened

Bottom Plate 3.3V LDO, Input Voltage 3.6-6V, the Current is about 30mA When Not Paired, About 10mA After Pairing, Input Voltage is Prohibited to Exceed 7V

The Interface Level is 3.3V, Can Be Connected to a Variety of Single Chip Microcomputer (51, AVR, PIC, ARM, MSP430, etc.) Directly, 5V Single Chip Microcomputer Can Also be Connected Directly , Without MAX232 and Cannot Pass MAX232

The Effective Distance of Open Space is 10 Meters, and It is Possible to Exceed 10 Meters, but the Connection Quality of This Distance Is not Guaranteed

SPP-CA Bluetooth Module Serial Port Level to 3.3V, if Connect 5V Level,the System Needs to Increase the Level Conversion Chip

The Bluetooth Signal is Greatly Affected by the Surrounding, Such as Trees, Metals, Walls and other Obstacles will have a Certain Bluetooth Signal Absorption or Shielding, We Advise Do Not Installed in the Metal Shell

Due to the Metal Will Weaken the Antenna Function,We Advise When You Lay Board for the Module, the Module Below the Antenna Do Not Shop and Alignment, It is Best to Hollow Out