/**
 * Displays text sent over the serial port (e.g. from the Serial Monitor) on
 * an attached LCD.
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
 */
#include <SoftwareSerial.h>   // 引用程式庫

SoftwareSerial BT(9,8); // RX | TX
const int val = 0, L_motor = 4, R_motor = 6, Monitor_val = 38400, Bt_speed = 9600;
void setup() {
    Serial.begin(Monitor_val);
    Serial.println("Arduino Nano Ready");

    BT.begin(Bt_speed);
    pinMode(L_motor,OUTPUT);
    pinMode(R_motor,OUTPUT);
}
// Set the LCD address to 0x27 for a 16 chars and 2 line display
// LiquidCrystal_I2C lcd(0x27, 16, 2);
int getint() {
    static int p;
    int x = 0;
    while (!BT.available() || isdigit(p = BT.read()))
        x = x * 10 + p;
    return x;
}
String getstring(char sep = '\n') {
    static char p;
    String x;
    while (!BT.available() || (p = BT.read()) != sep)
        x += p;
    return x;
}
void loop() {

}