From 7e6c599d4149f069c1cadc086ad87bafb75d4cd3 Mon Sep 17 00:00:00 2001
From: Stanley Huang <stanleyhuangyc@gmail.com>
Date: Tue, 24 Jan 2017 22:21:28 +1100
Subject: Added DTC reading

---
 megaloggerHD/megaloggerHD.ino | 23 +++++++++++++++++------
 1 file changed, 17 insertions(+), 6 deletions(-)

diff --git a/megaloggerHD/megaloggerHD.ino b/megaloggerHD/megaloggerHD.ino
index 7d32709..efc5f71 100644
--- a/megaloggerHD/megaloggerHD.ino
+++ b/megaloggerHD/megaloggerHD.ino
@@ -574,15 +574,11 @@ void reconnect()
     state &= ~(STATE_OBD_READY | STATE_GUI_ON);
     //digitalWrite(SD_CS_PIN, LOW);
     for (;;) {
-        if (!obd.init())
-            continue;
-
-        int value;
-        if (obd.readPID(PID_RPM, value))
+        if (obd.init())
             break;
         
         obd.sleep();
-        Narcoleptic.delay(4000);
+        Narcoleptic.delay(10000);
     }
     // re-initialize
     state |= STATE_OBD_READY;
@@ -731,8 +727,23 @@ void setup()
         lcd.print("VIN:");
         lcd.setColor(RGB16_YELLOW);
         lcd.println(buf);
+        lcd.println();
     }
 
+    uint16_t dtc[6];
+    int num = obd.readDTC(dtc, sizeof(dtc) / sizeof(dtc[0]));
+    lcd.setColor(RGB16_WHITE);
+    lcd.print(num);
+    lcd.println(" DTC found");
+    if (num > 0) {
+      lcd.setColor(RGB16_YELLOW);
+      for (byte i = 0; i < num; i++) {
+        lcd.print(dtc[i], HEX);
+        lcd.print(' ');
+      }
+    }
+    lcd.println();
+
     showECUCap();
     lcd.setCursor(0, 28);
     lcd.setColor(RGB16_YELLOW);
-- 
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