prebubtotn

buttonbox/src/main.cpp

@@ -4,6 +4,61 @@
 
 #include <config.h>
 
+// button pin defs
+const int buttonPins[] = {15, 16, 17, 18};
+const int buttonCount = sizeof(buttonPins) / sizeof(buttonPins[0]);
+const int beeperPin = 13;
+
+// Using INPUT_PULLUP means idle = HIGH, pressed = LOW (button to GND).
+const int buttonPressedState = LOW;
+const unsigned long debounceMs = 40;
+const int toneDurationMs = 90;
+
+// One tone per button (1-4).
+const int buttonTonesHz[buttonCount] = {262, 330, 392, 523};
+
+int lastStableState[buttonCount];
+int lastReading[buttonCount];
+unsigned long lastDebounceTime[buttonCount];
+
+void PlayButtonTone(int buttonNumber) {
+  if (buttonNumber < 1 || buttonNumber > buttonCount) {
+    return;
+  }
+
+  int frequencyHz = buttonTonesHz[buttonNumber - 1];
+  tone(beeperPin, frequencyHz, toneDurationMs);
+}
+
+// button request function
+bool SendButtonPressRequest(int buttonNumber) {
+  Serial.println("attempting to send button press");
+  bool success = false;
+  if (WiFi.status() == WL_CONNECTED) {
+    HTTPClient http;
+    http.begin(SERVER_URL);
+    http.addHeader("Content-Type", "text/plain");
+
+    int httpResponseCode = http.POST(String(buttonNumber));
+
+    if (httpResponseCode > 0) {
+      Serial.println("http response code: ");
+      Serial.print(httpResponseCode);
+      Serial.println(http.getString());
+      success = true;
+    } else {
+      Serial.println("HTTP ERROR!!! ");
+      Serial.print(httpResponseCode);
+      success = false;
+    }
+    http.end();
+
+  } else {
+    Serial.println("Not ocnnectec to wifi! cant send request!");
+  }
+  return success;
+}
+
 void setup() {
   Serial.begin(115200);
   WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
@@ -13,14 +68,43 @@ void setup() {
   }
   Serial.println("WIFI CONNENCTED !!!! :3");
 
-  pinMode(37, OUTPUT);
+  for (int i = 0; i < buttonCount; i++) {
+    pinMode(buttonPins[i], INPUT_PULLUP);
+    int initial = digitalRead(buttonPins[i]);
+    lastStableState[i] = initial;
+    lastReading[i] = initial;
+    lastDebounceTime[i] = 0;
+  }
+
+  pinMode(beeperPin, OUTPUT);
+  noTone(beeperPin);
 }
 
 void loop() {
-  Serial.println("looping...");
-  delay(500);
+  unsigned long now = millis();
 
-  digitalWrite(37, HIGH);
-  delay(400);
-  digitalWrite(37, LOW);
-}
+  for (int i = 0; i < buttonCount; i++) {
+    int reading = digitalRead(buttonPins[i]);
+
+    if (reading != lastReading[i]) {
+      lastDebounceTime[i] = now;
+    }
+
+    if ((now - lastDebounceTime[i]) > debounceMs) {
+      if (reading != lastStableState[i]) {
+        lastStableState[i] = reading;
+
+        // Trigger once on press edge.
+        if (reading == buttonPressedState) {
+          if (SendButtonPressRequest(i + 1)) {
+            PlayButtonTone(i + 1);
+          }
+        }
+      }
+    }
+
+    lastReading[i] = reading;
+  }
+
+  delay(5);
+}