除了刷主从之外,不配对的原因有1:已经配对其他设备,需用AT+RMAAD来移除。2、默认为蓝牙由绑定指令设置,需改为任意地址连接模式AT+CMODE=1
//#define AT 2#define LED 12void setup(){ pinMode(LED,OUTPUT); //pinMode(AT,OUTPUT); Serial.begin(38400); delay(100); Serial.println("AT+CMODE=1"); delay(100); Serial.println("AT+RMAAD");}void loop(){ digitalWrite(LED,HIGH); delay(500); digitalWrite(LED,LOW); delay(2000);}