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Oct 24th, 2020
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  1.  
  2. #include <Arduino.h>
  3.  
  4. extern "C" {
  5. void printf1(const char* format, ...);
  6. double second(void);
  7. }
  8. char str_buff01[1024];
  9. void printf1(const char* format, ...)
  10. {
  11.  
  12. va_list ap;
  13. va_start(ap, format);
  14.  
  15. // vsprintf(str_buff01, format, ap);
  16. vsnprintf(str_buff01, 1024, format, ap);
  17.  
  18. va_end(ap);
  19.  
  20. Serial.print(str_buff01);
  21.  
  22. }
  23.  
  24. double second(void)
  25. {
  26. return (millis() / 1000.0);
  27. }
  28.  
  29.  
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