Hi Everyone,
There is a pulse sensor attached in the picture. This sensor is connected to a gas meter and I do not want to count pulses pulse sensor on the LCD screen using pic 18f452. About the hardware, sample code, and I need to do to me Can you give an example. The picture is a red question mark over how to do a circuit. proteus show me if possible with the drawing.
Arduino use an AVR ATmega processor, not a PIC.
How do I do. HF-pulse and pulse sensor, how do I count how to link to the AVR. Can you give an example code and circuit diagram.
The voltage output of the sensor seems to be 1.2 to 2.3 volts. The little triangle in the diagram is probably an analog 'comparator' that will output a HIGH (5v) when the input is above 1.75v and a LOW (0v) when the input is below 1.75v. That will make a clean signal that the Arduino can read.
Someone has probably written an Arduino library for using the Counter/Timer features of the ATmega chip to count pulses.
An alternative would be to use an interrupt pin and have the interrupt service routine increment a counter.
I thing 5,000 pulses per second (5kHz) will be well within the capability of the Arduino.
Thank you for your comments. But I'll do this hobby, but the circuit design of the circuit a lot about the information be missing, trying to learn. Proteus simulation of the circuit with no need in it and I want to build on a breadboard. What you refer to the circuit enclosed in a red square. Which integrated, resistor or capacitor or other circuit elements which are connected to. If you're with me that it proteus circuit in the circuit and prepare the necessary places çizebilirseniz I ammeter, voltmeter, frequency, this circuit is to connect a oscilloscope I can understand how it works. With your help I will be saved in your way of learning phase. He must do it often comes in the style of questions asked in the forum recommendations. But I need more circuit diagram. How do I connect with you at this point, the first message, the AVR sensor circuit elements which I use. For this purpose, first I need a circuit diagram.
Thank you to everyone.
I gave up doing this circuit. Because despite all efforts and suggestions made ??in the wiki pages on google to learn about the principles of circuit op-amp writings eventhough I could not. I gave up doing this hobby circuit. Thank you to everyone that help.
it looks like this undertaking wouldn't be too hard. i interfaced to my cars tachometer pretty easily with a comparator and not much more. the code basically consists of an interrupt that is triggered by a rising pulse and a counter that goes on in the main loop. when the counter is done it reads how many times the interrupt triggered, then resets it and starts again. though if you didnt have access to an oscilloscope i could see how this would get really hard really fast.
Thank you for giving reply.
Oscilloscope I'm not the owner. The only materials in my hand on the sensor, the sensor and the information given there is only the first message. I want to do something to count the pulses generated by the sensor and the LCD display on the screen. Pulses on the LCD display and prepared the necessary other codes. I tested by connecting the pulse generator proteus simulation of the pulse sensor. But when I connect the circuit to finish the image sensor in this circuit, just like the simulator to show theDid he effect? Because it makes me think the sensor will be 8.2 volt supply. The basic principle of the need to open the circuit shown in the diagram and the red marked. This also make the circuit connect a processor so that pulses produced by the sensor processor sayabilsin unharmed.
I want to again. All I need is marked red on the shape of the circuit!