引入mqtt 引入cjson

middleware/easylogger/port/elog_port.c

@@ -28,6 +28,7 @@
  
 #include <elog.h>
 #include <stdio.h>
+#include <rtthread.h>
 
 /**
  * EasyLogger port initialize
@@ -61,7 +62,7 @@ void elog_port_deinit(void) {
 void elog_port_output(const char *log, size_t size) {
     
     /* add your code here */
-     printf("%.*s", size, log);
+     rt_kprintf("%.*s", size, log);
 }
 
 /**