Arduino code

code.ino

@@ -0,0 +1,71 @@
+#define LOW_POWER_SLEEP
+
+#define SLOW_START_DELAY 1000 // ms
+#define PIN_SPEAKER 12
+
+#define RELAYS 8
+int relayPins[] = {
+  2, 3, 4, 5, 6, 7, 8, 9
+};
+
+#ifdef LOW_POWER_SLEEP
+#include <Adafruit_SleepyDog.h>
+#endif
+
+void beep(int freq, int ms) {
+  tone(PIN_SPEAKER, freq, ms);
+  delay(ms);
+}
+
+void setup() {
+  pinMode(LED_BUILTIN, OUTPUT);
+  digitalWrite(LED_BUILTIN, HIGH);
+  for (int i = 0; i < RELAYS; i++) {
+    pinMode(relayPins[i], OUTPUT);
+    digitalWrite(relayPins[i], LOW);
+  }
+  
+  Serial.begin(115200);
+  while (!Serial)
+    delay(10);
+
+  Serial.println();
+  Serial.println(" [ Slow-start Power Socket ] ");
+
+  beep(440, 200);
+  delay(1000);
+
+  for (int i = 0; i < RELAYS; i++) {
+    Serial.println("...");
+    beep(100, 10);
+    delay(SLOW_START_DELAY);
+    
+    Serial.print("Starting ");
+    Serial.print(i+1);
+    Serial.print(" ... ");
+
+    beep(200, 50);
+    digitalWrite(relayPins[i], HIGH);
+    
+    Serial.println("Done.");
+    beep(460, 100);
+  }
+
+  Serial.println();
+  Serial.println("Finished!");
+  delay(1000);
+  beep(210, 100);
+  beep(420, 100);
+  beep(560, 200);
+  digitalWrite(LED_BUILTIN, LOW);
+  delay(1000);
+}
+
+void loop() {
+  // nothing to do!
+#ifdef LOW_POWER_SLEEP
+  Watchdog.sleep();
+#else
+  delay(1000);
+#endif
+}