gobagee 1pc HC-05 Master-Slave 6 pin Wireless Bluetooth RFTransceiver Module Anti-Reverse, Integrated Bluetooth Serial Pass-Through Module, Wireless Serial FM Transmitter Electronic Hobby Kit Electronic Components Electronic Hobby Kit
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1. Enable / Key This pin is used to toggle between Data Mode (set low) and AT command mode (set high). By default it is in Data mode 2. Vcc Powers the module. Connect to +5V Supply voltage 3. Ground Ground pin of module, connect to system ground. 4. TX – Transmitter Transmits Serial Data. Everything received via Bluetooth will be given out by this pin as serial data. 5. RX – Receiver Receive Serial Data. Every serial data given to this pin will be broadcasted via Bluetooth 6. State The state pin is connected to on board LED, it can be used as a feedback to check if Bluetooth is working properly. 7. LED Indicates the status of Module Blink once in 2 sec: Module has entered Command Mode Repeated Blinking: Waiting for connection in Data Mode Blink twice in 1 sec: Connection successful in Data Mode 8. Button Used to control the Key/Enable pin to toggle between Data and command Mode
