It is important to note that the HC-05 module has a 3.3V logic level, so we cannot connect the HC-05 module’s Rx pin directly to a digital pin on a 5V microcontroller like an Arduino UNO. In other words, the Rx pin on the HC-05 module is not 5V-tolerant. Therefore, before connecting to the HC-05 module, the microcontroller’s Tx signal must be stepped down to 3.3V. There are numerous ways to accomplish this, but the simplest is to use a resistor divider. A 1K resistor between HC-05’s Rx and Arduino’s D2, and a 2K resistor between HC-05’s Rx and GND, will work just fine.
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Thank you sir.
Most welcome
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thank you sir .🙏🙏🙏🙏🙏👍👍👍👍👍❤❤
Most welcome
Can you help me to download app mikroelektronika usart terminal
I check
Great video
Thanks!
It is important to note that the HC-05 module has a 3.3V logic level, so we cannot connect the HC-05 module’s Rx pin directly to a digital pin on a 5V microcontroller like an Arduino UNO. In other words, the Rx pin on the HC-05 module is not 5V-tolerant. Therefore, before connecting to the HC-05 module, the microcontroller’s Tx signal must be stepped down to 3.3V.
There are numerous ways to accomplish this, but the simplest is to use a resistor divider. A 1K resistor between HC-05’s Rx and Arduino’s D2, and a 2K resistor between HC-05’s Rx and GND, will work just fine.
Thanks for the knowledge
Hello sir, How to change default settings of HC-05 in CMD mode? Help me please
You have to use USB to TTL device to connect to PC
You can use any serial terminal
Use commix or any other
Why CMD!?
@@learningmicrocontrollers3561HC-05 has two modes DATA MODE and CMODE
@@learningmicrocontrollers3561 HC-05 have two mode DATA and CMODE
I make a video on that soon
@@learningmicrocontrollers3561 ok, thank you for your concern