ArduinoUartCtrl.ino

#include <SoftwareSerial.h>
#include <Wire.h>
#define Uart_Tx 2
#define Uart_Rx 3
#define Led 13

SoftwareSerial Uart(Uart_Tx,Uart_Rx);
char str[32]="";
/*================================================*/
void setup(){
    Serial.begin(9600);
    Uart.begin(38400);
    Serial.println("Welcom Uart CTRL");
    Uart.println("Welcom Uart CTRL");
    pinMode(Led, OUTPUT);
}
/*================================================*/
void loop(){
    ScanUartStr();
    ScanSerialStr();
}
/*================================================*/
void ScanUartStr(){
    if(Uart.available()) {
        int strnum=0;
        memset( str, 0, strlen(str) );
        while (Uart.available() > 0){
            str[strnum++] = Uart.read();
            delay(3);
        }
        /* Aaduino印出Uart接收到的 */
        Serial.print("Uart => :");
        Serial.println(str);
        /* Aaduino回傳Uart接收到的 */
        Uart.print("Arduino Return:");
        Uart.println(str);
        CtrlLED();
    }
}

void ScanSerialStr(){
    if(Serial.available()) {
        int strnum=0;
        memset( str, 0, strlen(str) );
        while (Serial.available() > 0){
            str[strnum++] = Serial.read();
            delay(3);
        }
        /* Arduino印出自己輸入的 */
        Serial.print("Arduino Input :");
        Serial.println(str);
        /* Arduino送出自己輸入的 */
        Uart.print("Arduino => : ");
        Uart.println(str);
        CtrlLED();
    }
}

void CtrlLED(){
    Serial.print("CtrlLED => ");
    if(strcmp(str,"1") == 0){
        Serial.print("LED 13 is ON");
        digitalWrite(Led, HIGH);
    }
    if(strcmp(str,"0") == 0){
        Serial.print("LED 13 is OFF");
        digitalWrite(Led, LOW);
    }
    Serial.println("");
}