From a1de0a98dc4254e3aa3ce75399f3b83ba6e6187b Mon Sep 17 00:00:00 2001
From: Stanley Huang <stanleyhuangyc@gmail.com>
Date: Tue, 13 Oct 2015 13:17:45 +1100
Subject: Add test sketch for OBD-II I2C Adapter

---
 .../OBD/examples/obd_i2c_test/obd_i2c_test.ino     | 103 +++++++++++++++++++++
 1 file changed, 103 insertions(+)
 create mode 100644 libraries/OBD/examples/obd_i2c_test/obd_i2c_test.ino

(limited to 'libraries/OBD/examples/obd_i2c_test')

diff --git a/libraries/OBD/examples/obd_i2c_test/obd_i2c_test.ino b/libraries/OBD/examples/obd_i2c_test/obd_i2c_test.ino
new file mode 100644
index 0000000..3888474
--- /dev/null
+++ b/libraries/OBD/examples/obd_i2c_test/obd_i2c_test.ino
@@ -0,0 +1,103 @@
+#include <Arduino.h>
+#include <Wire.h>
+#include <OBD.h>
+#include <I2Cdev.h>
+#include <MPU9150.h>
+
+COBDI2C obd;
+MPU6050 accelgyro;
+
+void testOut()
+{
+    static const char PROGMEM cmds[][6] = {"ATZ\r", "ATL1\r", "ATRV\r", "0100\r", "010C\r", "0902\r"};
+    char buf[OBD_RECV_BUF_SIZE];
+
+    for (byte i = 0; i < sizeof(cmds) / sizeof(cmds[0]); i++) {
+        char cmd[6];
+        memcpy_P(cmd, cmds[i], sizeof(cmd));
+        Serial.print("Sending ");
+        Serial.println(cmd);
+        if (obd.sendCommand(cmd, buf)) {
+            char *p = strstr(buf, cmd);
+            if (p)
+                p += strlen(cmd);
+            else
+                p = buf;
+            while (*p == '\r') p++;
+            while (*p) {
+                Serial.write(*p);
+                if (*p == '\r' && *(p + 1) != '\r')
+                    Serial.write('\n');
+                p++;
+            }
+        } else {
+            Serial.println("Timeout");
+        }
+        delay(500);
+    }
+    Serial.println();
+}
+
+void readMEMS()
+{
+    int16_t ax, ay, az;
+    int16_t gx, gy, gz;
+    int temp;
+
+    accelgyro.getMotion6(&ax, &ay, &az, &gx, &gy, &gz);
+    temp = accelgyro.getTemperature();
+
+    // display MEMS data
+    Serial.print("ACC=");
+    Serial.print(ax);
+    Serial.write('/');
+    Serial.print(ay);
+    Serial.write('/');
+    Serial.println(az);
+
+    Serial.print("GYRO=");
+    Serial.print(gx);
+    Serial.write('/');
+    Serial.print(gy);
+    Serial.write('/');
+    Serial.println(gz);
+}
+
+void showECUCap()
+{
+    static const byte PROGMEM pidlist[] = {PID_ENGINE_LOAD, PID_COOLANT_TEMP, PID_FUEL_PRESSURE, PID_INTAKE_MAP, PID_RPM, PID_SPEED, PID_TIMING_ADVANCE, PID_INTAKE_TEMP, PID_MAF_FLOW, PID_THROTTLE, PID_AUX_INPUT,
+        PID_EGR_ERROR, PID_COMMANDED_EVAPORATIVE_PURGE, PID_FUEL_LEVEL, PID_CONTROL_MODULE_VOLTAGE, PID_ABSOLUTE_ENGINE_LOAD, PID_AMBIENT_TEMP, PID_COMMANDED_THROTTLE_ACTUATOR, PID_ETHANOL_FUEL,
+        PID_FUEL_RAIL_PRESSURE, PID_HYBRID_BATTERY_PERCENTAGE, PID_ENGINE_OIL_TEMP, PID_FUEL_INJECTION_TIMING, PID_ENGINE_FUEL_RATE, PID_ENGINE_TORQUE_DEMANDED, PID_ENGINE_TORQUE_PERCENTAGE};
+
+    bool scanned = false;
+    for (byte i = 0; i < sizeof(pidlist) / sizeof(pidlist[0]); i++) {
+        byte pid = pgm_read_byte(pidlist + i);
+        bool valid = obd.isValidPID(pid);
+        Serial.print('0');
+        Serial.print((int)pid | 0x100, HEX);
+        Serial.print('=');
+        if (valid) {
+            int value;
+            if (obd.read(pid, value)) {
+              byte n = Serial.println(value);
+            }
+        } else {
+          Serial.println('X'); 
+        }
+     }
+}
+
+void setup() {
+  Serial.begin(115200);
+  delay(500);
+  Wire.begin();
+  accelgyro.initialize();
+  testOut();
+  Serial.println("Init...");
+  while (!obd.init());  
+}
+
+void loop() {
+  showECUCap();
+  readMEMS();
+}
-- 
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