Contents
What does pulseIn return?
Returns the length of the pulse in microseconds or gives up and returns 0 if no complete pulse was received within the timeout.
What does pulseIn mean?
Description. Reads a pulse (either HIGH or LOW) on a pin. For example, if value is HIGH, pulseIn() waits for the pin to go HIGH, starts timing, then waits for the pin to go LOW and stops timing.
What data type is long?
Primitive Data Types
| Data Type | Size | Description |
|---|---|---|
| byte | 1 byte | Stores whole numbers from -128 to 127 |
| short | 2 bytes | Stores whole numbers from -32,768 to 32,767 |
| int | 4 bytes | Stores whole numbers from -2,147,483,648 to 2,147,483,647 |
| long | 8 bytes | Stores whole numbers from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 |
How does pulsein work on an Arduino pin?
Description Reads a pulse (either HIGH or LOW) on a pin. For example, if value is HIGH, pulseIn () waits for the pin to go from LOW to HIGH, starts timing, then waits for the pin to go LOW and stops timing. Returns the length of the pulse in microseconds or gives up and returns 0 if no complete pulse was received within the timeout.
How long does a pulse on an Arduino last?
Works on pulses from 10 microseconds to 3 minutes in length. if the optional timeout is used code will execute faster. pin: the number of the Arduino pin on which you want to read the pulse. Allowed data types: int. value: type of pulse to read: either HIGH or LOW.
Is the ESP32 library compatible with Arduino IDE?
The below code compiles for me in Arduino IDE (1.8.12 as of May 2020). I did use Sketch -> Include Library to add ESP32 library. Although this compiles, I’m now on the quest to get the PCNT to work.
Can you use pulse counting in Arduino IDE?
I would like to use pulse counting on ESP32 in Arduino IDE. Unfortunately, IDF offers a lot of functions for working with counter, I don’t know, how to use it in Arduino IDE.