02162411_劉永健_Week14 期末作品構想

  DIY遙控車

  大致參照:

需要另外購買的硬體:

Bluetooth HC-06

ULN2003 Board (達靈頓放大器)

L293D Board (H-橋式電機驅動器)

 車

使用的車載體:

  參考藍牙通訊程式碼

#include <SoftwareSerial.h>

#include <Wire.h>

// the maximum received command length from an Android system (over the bluetooth)

#define MAX_BTCMDLEN 128

// HC-06    Arduino

// TX       RX/Pin10

// RX       TX/Pin11

SoftwareSerial BTSerial(10,11); // Arduino RX/TX

byte cmd[MAX_BTCMDLEN]; // received 128 bytes from an Android system

int len = 0; // received command length

void setup() {

    Serial.begin(9600);   // Arduino起始鮑率：9600

    BTSerial.begin(9600); // HC-06 出廠的鮑率：每個藍牙晶片的鮑率都不太一樣，請務必確認

}

void loop() {

    char str[MAX_BTCMDLEN];

    int insize, ii;  

    int tick=0;

    while ( tick<MAX_BTCMDLEN ) { // 因為包率同為9600, Android送過來的字元可能被切成數份

        if ( (insize=(BTSerial.available()))>0 ){ // 讀取藍牙訊息

            for ( ii=0; ii<insize; ii++ ){

                cmd[(len++)%MAX_BTCMDLEN]=char(BTSerial.read());

            }

        } else {

            tick++;

        }

    }

    if ( len ) { // 用串列埠顯示從Android手機傳過來的訊息

        sprintf(str,"%s",cmd);

        Serial.println(str);

        cmd[0] = '\0';

    }

    len = 0;

}