What is the pin for 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.
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 purpose of TXD pin in Bluetooth HC-05 sensor?
TXD: Transmit Serial data. It is used to wirelessly received data by the Bluetooth module transmitted out serially on the TXD pin. RXD: Receive data serially.
How do I connect my HC-05 to my phone?
Follow these mini-steps:
- Connect the Rx and Tx pins of HC-05 back to Arduino (if you haven’t did this already).
- Pair the device with your mobile phone (in my case I am using Android OS and my phone is Samsung SII).
- Download “Bluetooth Terminal” app from Google Play Store.
- Open Bluetooth Terminal app.
Can HC-05 receive audio?
No, it can’t. The HC-05 is a Bluetooth Serial device, Bluetooth speakers are Bluetooth Audio Sink devices.
How many pins HC-05 Bluetooth module can remain unconnected?
HC05 PIN DESCRIPTION The HC-05 Bluetooth Module has 6 pins commonly used.
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.
Which Arduino boards have Bluetooth?
The following Arduino boards come with Bluetooth built-in:
- Nano 33 BLE.
- Nano 33 IoT.
- UNO WiFi Rev 2.
- MKR WiFi 1010.
- MKR Vidor 4000.
- Portenta H7.
What is the difference between HC-05 and HC 06?
The HC-05 can be master or slave, the HC-06 is slave only. The main difference is that they have different firmware and HC-05 can be used as Slave and master but HC-06 can be used as a slave only.
What is the pin for the hc-05 Bluetooth module?
HC-05 pinout and specifications are given below. PIN NO. 1. This pin is used to bring the Bluetooth module in AT commands mode. By default, this pin operates in data mode. The Key/EN pin should be high to operate Bluetooth in command mode. In HC-05, the default baud speed in command mode is 38400bps and 9600 in data mode. 2.
What should I know about the 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 does state pin mean on Arduino hc-05?
This means the Arduino can connect to the STATE pin and determine when we have a connection. The STATE pin is LOW when the HC-05 is not connected and HIGH when the HC-05 is connected. As a quick visual indicator you can put a LED + suitable resistor on the STATE pin. When the module is connected the LED will light.
How can I change the PIN code on my hc-05?
You can use an AT command to change the device name. Also, the pin code default is 1234. You may wish to change that for some projects to ensure basic security. After spending some time searching the web I realized many people are having a hard time changing the default settings for the HC-05.