Library and examples for OBD-II UART Adapter MK2

1 files changed, 30 insertions, 0 deletions

diff --git a/libraries/OBD2UART/examples/rpm_led_uart/rpm_led_uart.ino b/libraries/OBD2UART/examples/rpm_led_uart/rpm_led_uart.ino
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+++ b/libraries/OBD2UART/examples/rpm_led_uart/rpm_led_uart.ino
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+/*************************************************************************
+* Sample sketch based on OBD-II library for Arduino
+* Distributed under GPL v2.0
+* Visit http://freematics.com for more information
+* (C)2012-2014 Stanley Huang <stanleyhuangyc@gmail.com>
+*************************************************************************/
+
+#include <OBD2UART.h>
+
+COBD obd;
+
+void setup()
+{
+  // we'll use the debug LED as output
+  pinMode(13, OUTPUT);  
+  // start communication with OBD-II UART adapter
+  obd.begin();
+  // initiate OBD-II connection until success
+  while (!obd.init());  
+}
+
+void loop()
+{
+  int value;
+  if (obd.readPID(PID_RPM, value)) {
+    // RPM is successfully read and its value stored in variable 'value'
+    // light on LED when RPM exceeds 3000
+    digitalWrite(13, value > 3000 ? HIGH : LOW);
+  }
+}