ROS很適合用在Ubuntu或Debian上，無須編譯。建置時要在Linux機器上執(zhí)行Ubuntu，使用業(yè)余用伺服機、Arduino和普通的導線。ROS要在Ubuntu機器上啟動，訊息則透過USB傳送到Arduino。只要安裝二進制的ROS套件，就會在主控臺程序（像是gnome-terminal或konsole）追加以下指令，這樣Arduino系統(tǒng)就能辨識ROS函式庫。
接下來要將程序代碼上傳到Arduino當中，執(zhí)行低階的伺服機控制，以便能從Linux機器操作。這時要以限制范圍內(nèi)的百分比（0.0～1.0）指定伺服機的位置。之所以使用百分比而不是寫明角度，是因為Arduino的程序代碼限制了正確的角度，要避免在指定角度時發(fā)生沖突。
就如各位所見，使用ROS之后，一般的循環(huán)函數(shù)就會變得相當簡單。循環(huán)函數(shù)只會訂閱（subscribe）數(shù)據(jù)，任何Arduino循環(huán)都一樣。設定時要將ROS初始化，將各個ROS訊息訂閱者的訂閱叫出來。每個訂閱者會占據(jù)Arduino的RAM，數(shù)量取決于要用程序代碼做什么，以6個到12個為限。
#include
#include
#include
#include
#define SERVOPIN 3
Servo servo;
void servo_cb( const std_msgs::Float32& msg )
{
const float min = 45;
const float range = 90;
float v = msg.data;
if( v > 1 ) v = 1;

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