How do I put my HC-05 in pairing mode?

Select the HC-05 Bluetooth Module on the display and double click the Serial Port Icon to connect. Key in default passwords: 1234 on [Passkey] to connect HC-05 Bluetooth Module. After key in correct passkey, the window will show which serial COM is connected to HC-05 Bluetooth Module.

How do I connect my Arduino Bluetooth HC 05?

In order to communicate with HC05 using Bluetooth, you need a Bluetooth terminal application on your phone. You can use this one. Now for start transferring data, upload this code on your Arduino and connect HC05 using the app you have just installed.

Why we use HC-05 Bluetooth module?

Designed to replace cable connections HC-05 uses serial communication to communicate with the electronics. 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.

What is the device class of the hc-05 module?

The HC-05 modules (and probably the HC-06) comes with a Device Class 0 as default. Wich most of the lets say “secure devices” nowdays request the device class to enumerate it corectly. I’ve setted the decive class to 00001 (this major class is designed for computers) and finally it was recognized by android without problem.

Can HC05 be used for basic Bluetooth in command mode?

As far as I know, HC05 cannot be used for basic Bluetooth in command. Command mode is just for configuring the HC05 module. The baud rate for HC05 in command mode is 38400 bps. Once configured, switch it back to data mode to send data from mobile and vies-versa.

What does a 2 Hz blinking frequency on the hc-05 indicate?

P.S.- A 2 Hz blinking frequency on HC-05 should signify proper connection Through which android app you are connecting because normally android only pair and will connect to device if you are sharing some data or files or you can connect to android device using any bluetooth app like bluetooth terminal or dual bluetooth chat

What is the baud rate for HC05?

The baud rate for HC05 in command mode is 38400 bps. Once configured, switch it back to data mode to send data from mobile and vies-versa. Tx and Rx connections should be interchanged. Just go through the schematics of the HC05 base board if you are not using the bare module. (just to rule out any possibility of printing errors.)