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What is the pin of HC-05?

by Minnie

What is the pin of HC-05?

Search for new Bluetooth device from your phone. You will find Bluetooth device with “HC-05” name. Click on connect/pair device option; default pin for HC-05 is 1234 or 0000.

Which pin of HC-05 Bluetooth module is connected to on board LED as a feedback to check if Bluetooth is working properly?

Connecting Phone to HC-05 Bluetooth Module If this is the first time you are using your Bluetooth Module, then the LED will blink rapidly. In order to pair the module with your phone, open Bluetooth Settings in your phone and connect to “HC-05” with pin “1234”. If 1234 doesn’t work, try “0000”.

What is the function of key en pin in HC-05 module?

Key/EN:It is used to bring Bluetooth module in AT commands mode. By default this pin operates in data mode. Key/EN pin should be high to operate Bluetooth in command mode. The default baud rate of HC-05 in command mode is 38400bps and 9600 in data mode.

What is the difference between HC-05 and HC 06?

The HC-05 can be a master or slave. The HC-06 is a slave only. This means the HC-05 can initiate a connection to another device and the HC-06 can only accept a connection from another device.

What is the range of HC-05?

10 meters
It uses the 2.45GHz frequency band. The transfer rate of the data can vary up to 1Mbps and is in range of 10 meters. The HC-05 module can be operated within 4-6V of power supply. It supports baud rate of 9600, 19200, 38400, 57600, etc.

How do you check if HC-05 is connected?

1 Answer

  1. Pull the KEY pin to Vcc (see note)
  2. Write the serial command AT on the serial interface.
  3. Look at the output: if you receive AT or OK then the module is connected, otherwise it is not.

How do I connect my HC-05 to HC-05?

Step 5: To Configure and Pair Two HC-05 As Master and Slave (Step 3)

  1. AT+RMAAD (To clear any paired devices)
  2. AT+ROLE=0 (To set it as slave)
  3. AT+ADDR (To get the address of this HC-05, remember to jot the address down as it will be used during master configuration)
  4. AT+UART=38400,0,0 (To fix the baud rate at 38400)

How long the HC-05 Bluetooth module signal can connect with a device?

Usually, it is used to connect small devices like mobile phones using a short-range wireless connection to exchange files. It uses the 2.45GHz frequency band. The transfer rate of the data can vary up to 1Mbps and is in range of 10 meters. The HC-05 module can be operated within 4-6V of power supply.

How do you get HC-05 in mode?

After the connection, If you Plug the power source, you will see the HC-05 power on with short rapid blink, which is standard pairing mode of module. For At Mode, you need to plug the power source while holding down the reset button on the module. The long slow blinks shows that we are in AT Command mode.

What is HC-05 command?

Step 5: AT Commands. For HC05: Type “AT” (without the quotes) on the serial monitor and press enter. if “OK” appears then everything is all right and the module is ready to take command. Now you can change the name of the module, retrieve address or version or even reset to factory settings.

How do I know if my HC-05 is working?

Testing HC-05 bluetooth module using Arduino UNO as serial to USB converter

  1. First make sure your HC-05 Bluetooth Module is paired with your mobile.
  2. Click on “SELECT DEVICE” icon to select paired Bluetooth module.
  3. When you press “UP Arrow” it sends the data “A” to Bluetooth Module connected with the circuit.

What do you need to know about hc-05 pinout?

HC-05 Pinout with Description: PIN NO. Pin Name Pin Description 1. KEY/En This pin is used to bring the Bluetooth 2. VCC Used to power the Bluetooth module. Give 3. GND The ground pin of the module 4. TXD Connect this pin with the RXD pin of the

What is the ground pin of the hc-05 Bluetooth module?

The ground pin of the module will solve the requirement. The HC-05 Bluetooth module interface with the microcontroller through UART communication. The TX will be the data transfer pin of the module in UART. This pin will be the data receiving the pin in UART communication. The state will be to show the current state of the Bluetooth.

What is the mode of operation of the hc-05 module?

HC-05 is a Bluetooth SPP (Serial Port Protocol) module designed for wireless communication. It can also be operated as a master or slave configuration. The HC-05 Bluetooth Module can be used in two modes of operation: Command Mode and Data Mode.

Is the hc-05 module compatible with Arduino?

To demonstrate the connection between HC-05 Module and Arduino, I have designed a simple circuit.