v1.4实现机器人一起踢乒乓球功能，使用maixcam，离线运行。

v1.4/platformio/lib/SCServo/examples/STSCL/Ping/Ping.ino

@@ -0,0 +1,34 @@
+/*
+Ping the servo to check if it is ready.
+*/
+
+#include <SCServo.h>
+
+SMS_STS sms_sts;
+// the uart used to control servos.
+// GPIO 18 - S_RXD, GPIO 19 - S_TXD, as default.
+#define S_RXD 18
+#define S_TXD 19
+
+int TEST_ID = 3;
+
+void setup()
+{
+  Serial.begin(115200);
+  Serial1.begin(1000000, SERIAL_8N1, S_RXD, S_TXD);
+  sms_sts.pSerial = &Serial1;
+  delay(1000);
+}
+
+void loop()
+{
+  int ID = sms_sts.Ping(TEST_ID);
+  if(ID!=-1){
+    Serial.print("Servo ID:");
+    Serial.println(ID, DEC);
+    delay(100);
+  }else{
+    Serial.println("Ping servo ID error!");
+    delay(2000);
+  }
+}