1 files changed, 99 insertions, 0 deletions
diff --git a/UhrLed.ino b/UhrLed.ino
new file mode 100644
index 0000000..fdb12a6
--- /dev/null
+++ b/UhrLed.ino
@@ -0,0 +1,99 @@
+#include <Wire.h>
+#include <RTCx.h>
+
+void printTm(Stream &str, struct RTCx::tm *tm)
+{
+  str.print(tm->tm_year + 1900);
+  str.print('-');
+  str.print(tm->tm_mon + 1);
+  str.print('-');
+  str.print(tm->tm_mday);
+  str.print('T');
+  str.print(tm->tm_hour);
+  str.print(':');
+  str.print(tm->tm_min);
+  str.print(':');
+  str.print(tm->tm_sec);
+  str.print(" yday=");
+  str.print(tm->tm_yday);
+  str.print(" wday=");
+  str.println(tm->tm_wday);
+}
+
+void setup(void)
+{
+  Serial.begin(9600);
+  Wire.begin();
+  // The address used by the DS1307 is also used by other devices (eg
+  // MCP3424 ADC). Test for a MCP7941x device first.
+  uint8_t addressList[] = {RTCx::MCP7941xAddress,
+         RTCx::DS1307Address};
+
+  // Autoprobe to find a real-time clock.
+  if (rtc.autoprobe(addressList, sizeof(addressList))) {
+    // Found something, hopefully a clock.
+    Serial.print("Autoprobe found ");
+    switch (rtc.getDevice()) {
+      case RTCx::DS1307:
+  Serial.print("DS1307");
+  break;
+    case RTCx::MCP7941x:
+      Serial.print("MCP7941x");
+      break;
+    default:
+      // Ooops. Must update this example!
+      Serial.print("unknown device");
+      break;
+    }
+    Serial.print(" at 0x");
+    Serial.println(rtc.getAddress(), HEX);
+  }
+  else {
+    // Nothing found at any of the addresses listed.
+    Serial.println("No RTCx found");
+    return;
+  }
+
+  // Enable the battery backup. This happens by default on the DS1307
+  // but needs to be enabled on the MCP7941x.
+  rtc.enableBatteryBackup();
+
+  // rtc.clearVBAT();
+  
+  // Ensure the oscillator is running.
+  rtc.startClock();
+
+  if (rtc.getDevice() == RTCx::MCP7941x) {
+    Serial.print("Calibration: ");
+    Serial.println(rtc.getCalibration(), DEC);
+    // rtc.setCalibration(-127);
+  }
+
+  rtc.setSQW(RTCx::freq4096Hz);
+}
+
+int ledBlue = 9;
+int ledGreen = 3;
+int ledRed = 11;
+unsigned long last = 0;
+void loop() {
+  // put your main code here, to run repeatedly:
+  struct RTCx::tm tm;
+  struct RTCx::tm *ptr;
+  rtc.readClock(tm);
+  ptr= &tm;
+  analogWrite(ledBlue,(ptr->tm_sec*4)+15);
+  Serial.print("Blue LED ");
+  Serial.println((ptr->tm_sec*4));
+  analogWrite(ledGreen,(ptr->tm_sec*2));
+  analogWrite(ledRed,(ptr->tm_sec*2));
+  delay(1000);
+    
+    printTm(Serial, ptr);
+    RTCx::time_t t = RTCx::mktime(&tm);
+    printTm(Serial, &tm);
+    Serial.print("unixtime = ");
+    Serial.println(t);
+    Serial.println("-----");
+  
+}