speedometer

MPGuino (Arduino for Car MPG)

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August 2009 This is an Arduino microcontroller that I wired into my car’s ECU and programmed to calculate the instantaneous/average miles per gallon of my 2002 Honda Civic. The circuit reads pulses from the Vehicle Speed Sensor and Fuel Injector wires. It is wired into my car via a USB cable. It’s pretty accurate once calibrated. My … Read more

PIC Digital Speedometer

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June 2008 I used a PIC microcontroller in a circuit to measure my car’s MPH. It measures the frequency of pulses from the Vehicle Speed Sensor, and converts it to miles-per-hour. A summer project involving programming a PIC micro controller to measure my Honda Civic’s MPH. The circuit I made measures the frequency of the pulses coming from … Read more