to robot. added delay at writting

src/lidar_lite.cpp

@@ -211,10 +211,8 @@ CLidarLite::read(unsigned char addr, int len)
       addr); // See header file for a description of this functionality.
 
   // Read STATUS. Repeat until bit 0 (LSB) goes low.
-  // wait_busy();
-  // NOTE: Commented because using this USB adapter the following write actions
-  // are slower than usual busy time.
-
+  wait_busy();
+  
   unsigned char data[len];
   try {
     this->adapter_->write(DEVICE_ID, &addr, 1);