From 4867d36b44c363f49180ab8cf6ebbe9a3bdf6fa6 Mon Sep 17 00:00:00 2001
From: RuhNet <ruhnet@ruel.us>
Date: Sat, 29 Dec 2018 17:07:18 -0500
Subject: [PATCH] Initial Commit

---
 GPS_Counter_Clock.ino | 210 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 210 insertions(+)
 create mode 100644 GPS_Counter_Clock.ino

diff --git a/GPS_Counter_Clock.ino b/GPS_Counter_Clock.ino
new file mode 100644
index 0000000..3857901
--- /dev/null
+++ b/GPS_Counter_Clock.ino
@@ -0,0 +1,210 @@
+//#include <LiquidCrystal.h>
+
+
+#include <Wire.h>
+#include <inttypes.h>
+#include <LCDi2cW.h>
+LCDi2cW lcd = LCDi2cW(4, 20, 0x4C, 0);
+
+uint8_t rows = 4;
+uint8_t cols = 20;
+
+uint8_t timeset = 0;
+int clearneeded;
+
+//LiquidCrystal lcd(12,11,10,9,8,7);
+bool ledState = LOW;
+volatile bool ppsTriggered = false;
+char serialBuffer[100];
+
+///////////////////////
+void ppsHandler(void);
+
+void ppsHandler(void)
+{
+  ppsTriggered = true;
+}
+//////////////////////////////////
+void pulseTheTime(int);
+
+
+void pulseTheTime(long counter) {
+  digitalWrite(4, HIGH); //pulse the reset output
+  delay(10);
+  digitalWrite(4, LOW);
+  for (int x = 0; x < counter; x++) {  //count up the time for right now.
+    //digitalWrite(5,HIGH);
+    //delay(1);
+    digitalWrite(5, LOW);
+    digitalWrite(5, HIGH);
+    digitalWrite(5, LOW);
+
+  }
+  return;
+}
+
+
+/////////////////////////////////////////////////////////////////////////
+void setup() {
+
+  //lcd.begin(20, 2);
+  lcd.init();
+  lcd.clear();
+  lcd.write(" ---[RuhNet GPS]---");
+  lcd.setCursor(0, 1);
+  //lcd.write("PROGRAM STARTING...");
+  lcd.print("PROGRAM STARTING...");
+  Serial.begin(4800);
+  pinMode(13, OUTPUT);
+  pinMode(6, OUTPUT);
+  pinMode(5, OUTPUT);
+  pinMode(4, OUTPUT);
+  pinMode(3, OUTPUT);
+  digitalWrite(5, LOW);
+
+
+
+
+  //pulseTheTime(1000);
+
+
+
+
+
+
+
+  pinMode(2, INPUT);
+  attachInterrupt(digitalPinToInterrupt(2), ppsHandler, RISING);
+  for (int x = 0; x < 20; x++) {
+    digitalWrite(13, HIGH);
+    delay(10);
+    digitalWrite(13, LOW);
+    delay(10);
+  }
+  lcd.clear();
+
+}
+
+
+//////////////////////////////////////////////
+void loop() {
+
+  lcd.setCursor(0, 0);
+  if (ppsTriggered) {
+    ppsTriggered = false;
+    ledState = !ledState;
+    digitalWrite(13, ledState);
+    digitalWrite(5, LOW);
+    digitalWrite(5, HIGH);
+    digitalWrite(5, LOW);
+
+    //digitalWrite(7, ledState);
+  }
+
+  if (Serial.available()) {
+    // wait a bit for the entire message to arrive
+    delay(400);
+
+    while (Serial.available() > 0) {
+      for (int n = 0; n < 100; n++) {
+        serialBuffer[n] = Serial.read();
+      }
+    }
+    String gpsString = serialBuffer;
+    char gpsValid = gpsString.charAt(18);
+    lcd.print(gpsString.substring(7, 9));
+    lcd.print(":");
+    lcd.print(gpsString.substring(9, 11));
+    lcd.print(":");
+    lcd.print(gpsString.substring(11, 13));
+    lcd.print(" UTC");
+
+    lcd.print(" ruel.io");
+
+
+
+
+
+
+
+    String timestring = gpsString.substring(7, 9) + gpsString.substring(9, 11) + gpsString.substring(11, 13);
+    //        int timeint = (gpsString.substring(7,9) + gpsString.substring(9, 11) + gpsString.substring(11, 13)).toInt();
+    long timeint = timestring.toInt();
+    long advance = 0;
+
+    if (!timeset) {
+      advance = 2;
+      pulseTheTime(advance);
+      advance = timeint;
+      pulseTheTime(advance);
+      timeset = 1;
+    }
+
+    if (gpsString.substring(11, 13) == "00") {
+      advance = 40;
+      pulseTheTime(advance);
+    }
+    if (gpsString.substring(9, 11) == "00") {
+      advance = 4040;
+      pulseTheTime(advance);
+    }
+
+
+    //String test = gpsString.substring(11,13);
+
+    lcd.setCursor(0, 3);
+    //lcd.print(timeint);
+
+    //clearneeded = 0;
+
+    clearneeded--;
+
+    if (advance > 0) {
+      lcd.setCursor(0, 3);
+      lcd.print("Advance Pulse:");
+      clearneeded = 2;
+      lcd.print(advance);
+    } else if (!clearneeded) {
+      lcd.print("GPS SYNC TIME");
+      lcd.print("   ");
+      lcd.write(127);
+      lcd.print("  |");
+      //lcd.print(gpsString.substring(11,13));
+    }
+    lcd.setCursor(0, 2);
+
+
+
+
+
+    if (gpsValid == 'V') {
+      lcd.print("  NO POSITION LOCK  ");
+      lcd.setCursor(0, 1);
+      if (ledState) {
+        lcd.print("--**<RuhNet GPS>**--");
+      } else {
+        lcd.print("Searching for GPS...");
+      }
+      // digitalWrite(8,LOW); //lock indicator LED
+    } else {
+      lcd.print(" GPS LOCK");
+      lcd.setCursor(0, 1);
+      lcd.print(gpsString.substring(20, 22));
+      lcd.print(".");
+      lcd.print(gpsString.substring(22, 24));
+      lcd.print(gpsString.substring(25, 27));
+      lcd.print("N ");
+      lcd.print(gpsString.substring(33, 35));
+      lcd.print(".");
+      lcd.print(gpsString.substring(35, 37));
+      lcd.print(gpsString.substring(38, 40));
+      lcd.print("W ");
+      lcd.print(gpsString.substring(40, 42));
+      //digitalWrite(8,HIGH); //lock indicator LED
+    }
+  }
+
+
+
+}
+