With LED indicator light, use 150mA and 3.3V regulation chip.
With VCC.GND.TXD.RXD foot for the Bluetooth
With "Re-seach" button(ON/OFF/WAKE foot for it , external MCU outinput "High level" can control module to re-seach)
Compatible with bluetooth master module".slave module"or master-slave(whole) module.
Input voltage: 3.3~6V
input power supply 3.3~6V, Prohibit more than 7V
No "Automatically prevent power supply peversing func", so please correctly connect power supply We advise to install "Bluetooth master module" The "State" is output foot for LED status, when bluetooth "Unconnected", output "Pulse" ; when bluetooth "connected", output "High level", we can determine the states from "MCU" If only the board , No any "Bluetooth Function "