Measuring frequency with Arduino. I'd like to use Timer1 to measure the time between rising edges of two input signals. I want to know how it is done (or at least how would you do) to measure duration and distances between pulses on a signal in a micro controller(or a better way). The timing of this function has been determined empirically and will probably show errors in longer pulses. Probably the most obvious method would be to send the pulses directly to a digital pin on Arduino, and use its internal clock to measure the time between pulses. I want to find time difference between two pulses using PIC16F628. Reading pulses from meters with pulse outputs.. using arduino. I am using a 4MHz external oscillator, MikroC compiler. Basically what you need to do is measure the time between pulses over a fixed amount of of time and then calculate the average. Measuring the Time Between Two Pulses On Separate Lines For example, if value is HIGH, pulseIn ... time out. i want to measure time duration between two pulse accurately which is between 0 to 4000 microsecond. Measure the Time Between the Rising Edges of Two Digital Signals. Hi all, I'm trying to measure the time between two pulses for a speedometer I am currently building. In Arduino how to measure exact time between two events happening (eg. There are two ways to measure a frequency with Arduino: ... so we need to calculate an average value over time. The pulseIn command will measure only one of these pulses. Is there some way to measure the time difference between two successive rising edges of a pulse train signal using Simulink in MATLAB 7.7 (R2008b)? Arduino Timers and Interrupts ... and can be used to measure time events. I know that Arduino is able to measure time between pulses I do not know how to convert the AC signal to a DC one (in the easier way it Your time between pulses is end_val - start_val. sensor interrupted).Is there any specific function? In Arduino how to measure exact time between two events happening (eg. Is there some way to measure the time difference between two successive rising edges of a pulse train signal using Simulink in MATLAB 7.7 (R2008b)? This project uses a magnetic switch (also called a reed switch) to measure the speed of one of the bike's wheels. http://playground.arduino.cc/Code/ACPhaseControl. Example Arduino sketch for interrupt based pulse counting: //Number of pulses, used to measure energy ... onPulse() { //used to measure time between pulses. Monitor your road speed using the Arduino. Thread 2851: Hi all,first time posting here.Ive got a most simple goal, measure the time between a bit going low and a ... PWM works by varying the width of the on signal (read Duty Cycle) within a fixed signal frequency or period of time. Using a pulse sensor with Arduino, is it possible to code in Actionscript? ... but look at what you would find trying to measure the time between the calls. Need to measure time difference between two pulses. I am using a 4MHz external oscillator, MikroC compiler. ... A half cycle (the time between two zero-crossings) occurs in 8.33 milliseconds. I'm using an interrupt to do so, but it just won't work. I think your algo might be the problem. Learn more about pulse width I want to find time difference between two pulses using PIC16F628. Arduino Pulse counting ... to measure the time between the pulses arrival and average the interval to estimate the RPM.