The CH34X family comprises widely used USB‑to‑serial chips manufactured by WCH (WinChipHead), commonly integrated into generic UNO R3, ESP8266, and ESP32 development boards.
 
          
        ESP-01S Wireless WIFI Module + Relay Module
          
            $29.99
          
        Projects
HC-05 Bluetooth Module and Arduino Beginner Tutorial
This is a basic example to get you start with HC-05 Bluetooth Module. Depending on your specific requirements and the functionality you want, you may need to expand and modify the sketch accordingly.
				
				
					Continue Reading 
              
              
					
				
			

 
				 
    
    
    
