Hi all, I want to have phase shift of 90 degree between the pins (D5,D6), (D10& D11). I am using code attached where I am generating 30Hz frequency with 50% duty. I am having the code. Help me with your ideas. [IMG20230921114104]

This is not an answer. possible answers might be :- To drive a stepping motor. To simulate a rotary encoder signal To to drive a three phase motor To run the Bldc motor These output acts as dummy feedback at D5,D6,D10&D11 with 90 degree phase shift and input is given at D2&D8 for two different motors. Is this enough?

Hi Guys, I think I have shared information like I am using two motor outputs i.e., one at(D5,D6)& second(D10&D11). And input is given at D2&D8 Hope this given an idea...

This is the code to do it. Note you need to ground ether pin 2 or pin 8 to stop the wave. ISR(TIMER1_COMPA_vect){ static byte times = 0; times = (times + 1) & 3 ; bool d5_d6 = digitalRead(2); bool d10_d11 = digitalRead(8); switch (times){ case 0: if(d5_d6) digitalWrite(5, HIGH); else digitalWrite(5, LOW); if(d10_d11) digitalWrite(10, HIGH); else digitalWrite(10, LOW); break; case 1: if(d5_d6) digitalWrite(6, HIGH); else digitalWrite(6, LOW); if(d10_d11) digitalWrite(11, HIGH); else digitalWrite(11, LOW); break; case 2: if(d5_d6) digitalWrite(5, LOW); if(d10_d11) digitalWrite(10, LOW); break; case 3: if(d5_d6) digitalWrite(6, LOW); if(d10_d11) digitalWrite(11, LOW); break; } } void setup() { // put your setup code here, to run once: pinMode(5,OUTPUT); pinMode(6,OUTPUT); pinMode(10,OUTPUT); pinMode(11,OUTPUT); pinMode(2, INPUT_PULLUP); // controlling D5 & D6 Wave pinMode(8, INPUT_PULLUP); // controlling D10 & D11 Wave cli();//stop interrupts //set timer1 values //set timer1 interrupt at 1Hz TCCR1A = 0;// set entire TCCR1A register to 0 TCCR1B = 0;// same for TCCR1B TCNT1 = 0;//initialize counter value to 0 // set compare match register for 120 Hz increments OCR1A = 130; // turn on CTC mode TCCR1B |= (1 << WGM12); // Set CS12 and CS10 bits for 1024 prescaler TCCR1B |= (1 << CS12) | (1 << CS10); // enable timer compare interrupt TIMSK1 |= (1 << OCIE1A); sei();//allow interrupts } void loop() { // put your main code here, to run repeatedly: }

Can we able to read the input frequency values at D2&D8 range of 20KHz signal?

[image] How to get the best out of this forum Programming Questions Welcome to the Arduino forum! A guide explaining how to get the best out of this forum is available at the link below. Please read it:

This thread might be of interest: Arduino pitch detection in realtime (using autocorrelation and peak detection)

PulseIn() is taking more time Anyother Ideas!!

[image] charanpatel_k: PulseIn() is taking more time More time than what? What does the 20kHz signal look like? Is it a clean signal or full of noise pulses? If so, do you intend to add circuitry to clean it up before trying to measure the frequency?

Phase shift between Pins

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paulpaulson November 17, 2023, 12:43pm 55

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Phase shift between Pins

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