初始化提交

arduino-cli/libraries/Blynk/examples/Blynk.Inject/Template_ESP8266/ResetButton.h

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+/**************************************************************
+ * This is a DEMO. You can use it only for development and testing.
+ *
+ * If you would like to add these features to your product,
+ * please contact Blynk for Business:
+ *
+ *                  http://www.blynk.io/
+ *
+ **************************************************************/
+
+volatile bool     g_buttonPressed = false;
+volatile uint32_t g_buttonPressTime = -1;
+
+void button_action(void)
+{
+  BlynkState::set(MODE_RESET_CONFIG);
+}
+
+void button_change(void)
+{
+#if BOARD_BUTTON_ACTIVE_LOW
+  bool buttonState = !digitalRead(BOARD_BUTTON_PIN);
+#else
+  bool buttonState = digitalRead(BOARD_BUTTON_PIN);
+#endif
+
+  if (buttonState && !g_buttonPressed) {
+    g_buttonPressTime = millis();
+    g_buttonPressed = true;
+    DEBUG_PRINT("Hold the button to reset configuration...");
+  } else if (!buttonState && g_buttonPressed) {
+    g_buttonPressed = false;
+    uint32_t buttonHoldTime = millis() - g_buttonPressTime;
+    if (buttonHoldTime >= BUTTON_HOLD_TIME_ACTION) {
+      button_action();
+    }
+    g_buttonPressTime = -1;
+  }
+}
+
+void button_init()
+{
+#if BOARD_BUTTON_ACTIVE_LOW
+  pinMode(BOARD_BUTTON_PIN, INPUT_PULLUP);
+#else
+  pinMode(BOARD_BUTTON_PIN, INPUT);
+#endif
+  attachInterrupt(BOARD_BUTTON_PIN, button_change, CHANGE);
+}
+