From 8f9652cfb3f9be74bb9de3c097e5cf316737d21b Mon Sep 17 00:00:00 2001
From: Stanley Huang <stanleyhuangyc@gmail.com>
Date: Sun, 29 Jun 2014 21:18:09 +1000
Subject: Add clearDTC()
---
libraries/OBD/OBD.cpp | 8 +++++++-
libraries/OBD/OBD.h | 23 +++++++++++++++++++----
2 files changed, 26 insertions(+), 5 deletions(-)
(limited to 'libraries')
diff --git a/libraries/OBD/OBD.cpp b/libraries/OBD/OBD.cpp
index 85e3ed0..172730e 100644
--- a/libraries/OBD/OBD.cpp
+++ b/libraries/OBD/OBD.cpp
@@ -75,6 +75,12 @@ bool COBD::read(byte pid, int& result)
return getResult(pid, result);
}
+void COBD::clearDTC()
+{
+ write("04\r");
+ receive(0, 1000);
+}
+
bool COBD::available()
{
return OBDUART.available();
@@ -119,7 +125,7 @@ int COBD::normalizeData(byte pid, char* data)
case PID_THROTTLE:
case PID_COMMANDED_EGR:
case PID_COMMANDED_EVAPORATIVE_PURGE:
- case PID_FUEL_LEVEL_INPUT:
+ case PID_FUEL_LEVEL:
case PID_RELATIVE_THROTTLE_POS:
case PID_ABSOLUTE_THROTTLE_POS_B:
case PID_ABSOLUTE_THROTTLE_POS_C:
diff --git a/libraries/OBD/OBD.h b/libraries/OBD/OBD.h
index d2a9eb1..d47c3d3 100644
--- a/libraries/OBD/OBD.h
+++ b/libraries/OBD/OBD.h
@@ -44,7 +44,7 @@
#define PID_COMMANDED_EGR 0x2C
#define PID_EGR_ERROR 0x2D
#define PID_COMMANDED_EVAPORATIVE_PURGE 0x2E
-#define PID_FUEL_LEVEL_INPUT 0x2F
+#define PID_FUEL_LEVEL 0x2F
#define PID_WARMS_UPS 0x30
#define PID_DISTANCE 0x31
#define PID_EVAP_SYS_VAPOR_PRESSURE 0x32
@@ -89,23 +89,38 @@ public:
COBD():dataMode(1),errors(0),m_state(OBD_DISCONNECTED) {}
/*
Serial baudrate is only adjustable for Arduino OBD-II Adapters V2
- Check out http://arduinodev.com/hardware/obd-kit/
+ Check out http://freematics.com/pages/products/arduino-obd-adapter
*/
virtual void begin(unsigned long baudrate = 0);
+ // initialize OBD-II connection
virtual bool init(byte protocol = 0);
+ // un-initialize OBD-II connection
virtual void uninit();
+ // get connection state
+ byte getState() { return m_state; }
+ // read specified OBD-II PID value
virtual bool read(byte pid, int& result);
+ // set device into
virtual void sleep();
+ // wake up device from previous sleep
virtual void wakeup();
+ // set working protocol (default auto)
virtual void setProtocol(byte h = -1);
- // Query and GetResponse for advanced usage only
+ // clear diagnostic trouble code
+ virtual void clearDTC();
+ // send query for specified PID
virtual void sendQuery(byte pid);
+ // retrive and parse the response of specifie PID
virtual bool getResult(byte& pid, int& result);
+ // determine if the PID is supported
bool isValidPID(byte pid);
- byte getState() { return m_state; }
+ // set current PID mode
byte dataMode;
+ // occurrence of errors
byte errors;
+ // bit map of supported PIDs
byte pidmap[4 * 4];
+ // current VIN
byte vin[17];
protected:
virtual char* getResponse(byte& pid, char* buffer);
--
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