simple_example.ino

/**
 * @example simple_example.ino
 */
#include <Arduino.h>
#include <Wire.h>
 
#include "speech_recognizer.h"
 
#define INFINITE_LOOP_ON_FAILURE InfiniteLoopOnFailure(__FUNCTION__, __LINE__)
 
namespace {
emakefun::SpeechRecognizer g_speech_recognizer;
 
void InfiniteLoopOnFailure(const char* function, const uint32_t line_number) {
  Serial.println(String(F("entering an infinite loop due to failure in ")) + function + F(", at line number: ") + line_number);
  while (true) {
    yield();
  }
}
}  // namespace
 
void setup() {
  Serial.begin(115200);
  Serial.println(F("setup"));
  Wire.begin();
  const auto ret = g_speech_recognizer.Initialize();
 
  if (emakefun::SpeechRecognizer::kOK == ret) {
    Serial.println(F("speech recognizer initialization was successful"));
  } else {
    Serial.println(String(F("speech recognizer initialization failed: ")) + ret);
    INFINITE_LOOP_ON_FAILURE;
  }
  g_speech_recognizer.AddKeyword(0, F("xiao yi xiao yi"));
  g_speech_recognizer.AddKeyword(1, F("bei jing"));
  g_speech_recognizer.AddKeyword(2, F("shang hai"));
  g_speech_recognizer.AddKeyword(3, F("cheng du"));
  Serial.println(F("setup successful"));
}
 
void loop() {
  const auto result = g_speech_recognizer.Recognize();
  if (result >= 0) {
    Serial.print(F("result: "));
    Serial.println(result);
  }
}