記錄學習的過往

HC-05 VCC → Arduino 5V
HC-05 GND → Arduino GND
HC-05 TXD → Arduino pin 10
HC-05 RXD → Arduino pin 11
HC-05 KEY → Arduino pin 9

Arduino code

#include <SoftwareSerial.h>
SoftwareSerial BTSerial(10, 11); // RX | TX
void setup()
{
  pinMode(9, OUTPUT);  
  digitalWrite(9, HIGH);
  Serial.begin(9600);
  Serial.println("Enter AT commands:");
  BTSerial.begin(38400); 
}
void loop()
{
 
  if (BTSerial.available())
    Serial.write(BTSerial.read());

  if (Serial.available())
    BTSerial.write(Serial.read());
}

HC-05 AT Command

查詢:以問號(?)結尾

設定:將問號改成冒號(:)

ex

查詢Baud rate

AT+UART?

設定Baud rate

AT+UART:9600

指令

AT+UART

AT+NAME

AT+VERSION

AT+PSWD

 如需還要的指令請查HC-05