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diff --git a/samples/dashboard_1602/dashboard_1602.ino b/samples/dashboard_1602/dashboard_1602.ino
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+++ b/samples/dashboard_1602/dashboard_1602.ino
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+/*************************************************************************
+* Sample sketch based on OBD-II library for Arduino
+* Using a LCD1602 shield to display realtime vehicle data
+* Distributed under GPL v2.0
+* Copyright (c) 2012 Stanley Huang <stanleyhuangyc@gmail.com>
+* All rights reserved.
+*************************************************************************/
+
+#include <arduino.h>
+#include <LCD4Bit_mod.h>
+#include <OBD.h>
+
+//create object to control an LCD.
+LCD4Bit_mod lcd = LCD4Bit_mod(2);
+
+COBD obd;
+
+//Key message
+unsigned int  adc_key_val[5] ={30, 150, 360, 535, 760 };
+int NUM_KEYS = 5;
+int adc_key_in;
+char key=-1;
+char oldkey=-1;
+unsigned long lastTick = millis();
+uint8_t modes[2] = {0, 2};
+
+const char modePids[] = {PID_RPM, PID_SPEED, PID_THROTTLE, PID_ENGINE_LOAD,
+	PID_COOLANT_TEMP, PID_INTAKE_TEMP, PID_AMBIENT_TEMP, PID_MAF_FLOW,
+	PID_ABS_ENGINE_LOAD, PID_FUEL_PRESSURE, PID_INTAKE_PRESSURE, PID_BAROMETRIC,
+	PID_TIMING_ADVANCE, PID_FUEL_LEVEL, PID_RUNTIME, PID_DISTANCE};
+
+const char* modeLabels[] = {
+	"Engine       rpm", "Speed       km/h", "Throttle       %", "Engine Load    %",
+	"Coolant        C", "Intake Air     C", "Env. Temp      C", "MAF Flow     kpa",
+	"Abs. Load      %", "Fuel         kpa", "Intake       kpa", "Barometer    kpa",
+	"Timing Adv.     ", "Fuel Level     %", "Run Time", "Distance      km"};
+
+const char modePos[] = {8, 8, 11, 12,
+	11, 11, 11, 9,
+	11, 9, 9, 10,
+	12, 11, 8, 10};
+
+const char* modeFmts[] = {"%4u", "%3u", "%3u", "%u",
+	"%3d", "%3d", "%3d", "%3u",
+	"%3u", "%3u", "%3u", "%u",
+	"%3d", "%3u", "%4u:%02u", "%04u"};
+
+#define TOTAL_PIDS (sizeof(modePids) / sizeof(modePids[0]))
+
+// Convert ADC value to key number
+char get_key(unsigned int input)
+{
+  char k;
+  for (k = 0; k < NUM_KEYS; k++) {
+    if (input < adc_key_val[k])
+      return k;
+  }
+  return -1;
+}
+
+void updateMode()
+{
+	lcd.cursorTo(1, 0);
+	lcd.printIn((char*)modeLabels[modes[0]]);
+	lcd.cursorTo(2, 0);
+	lcd.printIn((char*)modeLabels[modes[1]]);
+}
+
+bool showData(int index)
+{
+	char buf[16];
+	int value;
+	uint8_t mode = modes[index];
+	uint8_t pid = modePids[mode];
+	digitalWrite(13, HIGH);   // set the LED on
+	if (!obd.ReadSensor(pid, value)) {
+                // display received data on error
+		lcd.cursorTo(index + 1, 0);
+		lcd.printIn("Error");
+		delay(2000);
+		updateMode();
+		return false;
+	}
+	digitalWrite(13, LOW);   // set the LED off
+
+	if (pid == PID_RUNTIME) {
+		sprintf(buf, modeFmts[mode], (unsigned int)value / 60, (unsigned int)value % 60);
+	} else {
+		sprintf(buf, modeFmts[mode], value);
+	}
+	lcd.cursorTo(index + 1, modePos[mode]);
+	lcd.printIn(buf);
+	return true;
+}
+
+bool setupConnection()
+{
+  uint8_t errors = 0;
+  char buf[16];
+  lcd.clear();
+  lcd.printIn("Connecting...");
+  while (!obd.Init()) {
+	  lcd.cursorTo(2, 0);
+	  sprintf(buf, "Attempts #%d", ++errors);
+	  lcd.printIn(buf);
+  }
+  lcd.clear();
+  lcd.printIn("Connected!");
+  delay(1000);
+  updateMode();
+  return true;
+}
+
+void setup()
+{
+  pinMode(13, OUTPUT);  //we'll use the debug LED to output a heartbeat
+  lcd.init();
+  OBDUART.begin(OBD_SERIAL_BAUDRATE);
+  setupConnection();
+}
+
+void loop()
+{
+	adc_key_in = analogRead(0);    // read the value from the sensor
+	key = get_key(adc_key_in);		        // convert into key press
+
+	if (key != oldkey) {
+		delay(50);		// wait for debounce time
+		adc_key_in = analogRead(0);    // read the value from the sensor
+		key = get_key(adc_key_in);		        // convert into key press
+		if (key != oldkey)
+		{
+			oldkey = key;
+			if (key >=0){
+				switch (key) {
+				case 3: // left key
+					do {
+						modes[0] = modes[0] > 0 ? modes[0] - 1 : TOTAL_PIDS - 1;
+					} while (modes[0] == modes[1]);
+					break;
+				case 0: // right key
+					do {
+						modes[0] = modes[0] < TOTAL_PIDS - 1 ? modes[0] + 1 : 0;
+					} while (modes[0] == modes[1]);
+					break;
+				case 1: // up key
+					do {
+						modes[1] = modes[1] > 0 ? modes[1] - 1 : TOTAL_PIDS - 1;
+					} while (modes[0] == modes[1]);
+					break;
+				case 2: // down key
+					do {
+						modes[1] = modes[1] < TOTAL_PIDS - 1 ? modes[1] + 1 : 0;
+					} while (modes[0] == modes[1]);
+					break;
+				}
+				updateMode();
+			}
+		}
+	}
+
+	unsigned long curTick = millis();
+	if (curTick - lastTick > 500) {
+		showData(0);
+		showData(1);
+		if (obd.errors > 10) {
+			setupConnection();
+		}
+		lastTick = curTick;
+	}
+}
+