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+/*
+ * Copyright (C) 2015, 2016 "IoT.bzh"
+ * Author "Romain Forlot" <romain.forlot@iot.bzh>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * A representation of an OBD-II PID.
+ *
+ * pid - The 1 byte PID.
+ * name - A human readable name to use for this PID when published.
+ * frequency - The frequency to request this PID if supported by the vehicle
+ * when automatic, recurring OBD-II requests are enabled.
+ */
+
+enum UNIT {
+ POURCENT,
+ DEGREES_CELSIUS,
+ KPA,
+ RPM,
+ GRAMS_SEC,
+ SECONDS,
+ KM,
+ KM_H,
+ PA,
+ NM
+};
+
+const char *UNIT_NAMES[10] = {
+ "POURCENT",
+ "DEGREES_CELSIUS",
+ "KPA",
+ "RPM",
+ "GRAMS_SEC",
+ "SECONDS",
+ "KM",
+ "KM_H",
+ "PA",
+ "NM"
+};
+
+typedef struct _Obd2Pid {
+ uint8_t pid;
+ const char* name;
+ const int min;
+ const int max;
+ enum UNIT unit;
+ int frequency;
+} Obd2Pid;
+
+/*
+ * Pre-defined OBD-II PIDs to query for if supported by the vehicle.
+ */
+const Obd2Pid OBD2_PIDS[] = {
+ { pid: 0x4, name: "engine.load", min:0, max: 100, unit: POURCENT, frequency: 5 },
+ { pid: 0x5, name: "engine.coolant.temperature", min: -40, max: 215, unit: DEGREES_CELSIUS, frequency: 1 },
+ { pid: 0xa, name: "fuel.pressure", min: 0, max: 765, unit: KPA, frequency: 1 },
+ { pid: 0xb, name: "intake.manifold.pressure", min: 0, max: 255, unit: KPA, frequency: 1 },
+ { pid: 0xc, name: "engine.speed", min: 0, max: 16383, unit: RPM, frequency: 5 },
+ { pid: 0xd, name: "vehicle.speed", min: 0, max: 255, unit: KM_H, frequency: 5 },
+ { pid: 0xf, name: "intake.air.temperature", min: -40, max:215, unit: DEGREES_CELSIUS, frequency: 1 },
+ { pid: 0x10, name: "mass.airflow", min: 0, max: 655, unit: GRAMS_SEC, frequency: 5 },
+ { pid: 0x11, name: "throttle.position", min: 0, max: 100, unit: POURCENT, frequency: 5 },
+ { pid: 0x1f, name: "running.time", min: 0, max: 65535, unit: SECONDS, frequency: 1 },
+ { pid: 0x2d, name: "EGR.error", min: -100, max: 99, unit: POURCENT, frequency: 0 },
+ { pid: 0x2f, name: "fuel.level", min: 0, max: 100, unit: POURCENT, frequency: 1 },
+ { pid: 0x33, name: "barometric.pressure", min: 0, max: 255, unit: KPA, frequency: 1 },
+ { pid: 0x4c, name: "commanded.throttle.position", min: 0, max: 100, unit: POURCENT, frequency: 1 },
+ { pid: 0x52, name: "ethanol.fuel.percentage", min: 0, max: 100, unit: POURCENT, frequency: 1 },
+ { pid: 0x5a, name: "accelerator.pedal.position", min: 0, max: 100, unit: POURCENT, frequency: 5 },
+ { pid: 0x5b, name: "hybrid.battery-pack.remaining.life", min: 0, max: 100, unit: POURCENT, frequency: 5 },
+ { pid: 0x5c, name: "engine.oil.temperature",min: -40, max: 210, unit: DEGREES_CELSIUS, frequency: 1 },
+ { pid: 0x63, name: "engine.torque", min: 0, max: 65535, unit: NM, frequency: 1 },
+};
+
+/*
+ { pid: 0x4, name: "engine.load", frequency: 5 },
+ { pid: 0x5, name: "engine.coolant.temperature", frequency: 1 },
+ { pid: 0xa, name: "fuel.pressure", frequency: 1 },
+ { pid: 0xb, name: "intake.manifold.pressure", frequency: 1 },
+ { pid: 0xc, name: "engine.speed", frequency: 5 },
+ { pid: 0xd, name: "vehicle.speed", frequency: 5 },
+ { pid: 0xf, name: "intake.air.temperature", frequency: 1 },
+ { pid: 0x10, name: "mass.airflow", frequency: 5 },
+ { pid: 0x11, name: "throttle.position", frequency: 5 },
+ { pid: 0x1f, name: "running.time", frequency: 1 },
+ { pid: 0x27, name: "fuel.level", frequency: 1 },
+ { pid: 0x33, name: "barometric.pressure", frequency: 1 },
+ { pid: 0x4c, name: "commanded.throttle.position", frequency: 1 },
+ { pid: 0x52, name: "ethanol.fuel.percentage", frequency: 1 },
+ { pid: 0x5a, name: "accelerator.pedal.position", frequency: 5 },
+ { pid: 0x5c, name: "engine.oil.temperature", frequency: 1 },
+ { pid: 0x63, name: "engine.torque", frequency: 1 },
+};
+ */