1,Core module uses SH-HC-08, leads from the module interface includes VCC, GND, TXD, RXD, LED status output pin. 2, led indicate Bluetooth connection status, flashing Bluetooth connectivity, lit the Bluetooth connection and open a port Backplane 3, 3.3V LDO input voltage 3.6 ~6V, the input voltage to prohibit more than 7V!
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