Questions tagged [functions]
Segmenting code into functions allows a programmer to create modular pieces of code that perform a defined task and then return to the area of code from which the function was "called". The typical case for creating a function is when one needs to perform the same action multiple times in a program.
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Coding Sequential Operations
I am using an Arduino r4 Wi-Fi to control unique angle settings for two different servo motors during the execution and operation of a device I am building.
I want to have the servos use different ...
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Keyestudio KS5009 ESP32WROOM32 Smart Home
I'm encountering persistent errors with the sample code provided for my smart home kit project. Despite conducting extensive research and troubleshooting efforts, I haven't been able to find a ...
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How do you take the simplest continuous reading from a Garmin Lidar Lite V4 using I2C on a Particle Boron v4.1.0?
Hey there Stack community.
I'm working with the Particle Boron v4.1.0.
I'm connecting a Garmin Lidar Lite V4 on I2C.
I'm using the LIDARLite_v4LED.h header file found in the library given for this ...
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Round to first significant digit
I want to round a decimal number (x), but I need to do it differently depending on how it is. If it has integer significant digits, we round to the nearest integer, and if not, we round to the first ...
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parseFloat() function [duplicate]
I have noticed that the parseFloat() function returns decimal numbers, but only up to 2 decimal places. Would it be possible for it to return the numbers with more decimal places? In case we need more ...
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variable or field declared void Error
For a larger sketch, I have separated a chunk of code in a separate .cpp file
#include "msg.h"
#include <Arduino.h>
#include <HTTPClient.h>
#include <ArduinoJson.h>
void ...
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Parallel I/O - maybe use Machine code function call
I'm a newbie to arduino but been programming lots.
I have a project where I would like to output 4 bits to adjacent pins and read 4 bits from another (4) adjacent pins. (Imagine a matrix keyboard ...
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İs that possible to a function return String OR Int depends on address
Well, I'm trying to use a HMI display and this HMI storing datas in separeta addreses. Such as integers addr. is between 0x80000 to 0x9ffff and also for string's addr is between 0 to 0x1ffff.
At this ...
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Why no brackets after Interrupt routine inside attachInterrupt
I'm just curious as to why there are no brackets at the end of the ISR when attaching and assigning the interrupt command?
attachInterrupt(digitalPinToInterrupt(interruptPin), blink, CHANGE);
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CPP Function param use function with multi params [closed]
I want to specify a function with parameters for a function parameter, but it doesn't come together.
////////////////////////////////////////////////////////////////////////
// Example funch...
void ...
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Arduino PID Library
I hope you're doing well. I have some questions regarding the PID functions.
Can you please explain to me the following commands? I shall be very thankful to you.
PID myPIDX(&InputX, &OutputX,...
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How to reset a variable just before entering a function? [closed]
I am facing a problem where the if condition in the function waterNowrun is able to execute once after the program starts as the variable v is 0 at the start, but upon starting it again the if does ...
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Using functions in header files [closed]
I want to include a function in my sketch I moved to a .h file.
I did it as follows:
My code:
#include "header.h"
void setup() {
fct();
}
void loop() {
}
My header:
#include "...
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Can you create an array for functions? [closed]
Let's say I want to create 10 functions, named Function1, Function2 until 10. Each function is used if a certain variable is equal to its number. Rather than using individual functions, I was ...
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This website in Arduino lists language references like functions and structures. What makes structures there different from functions?
https://www.arduino.cc/reference/en/
Language Reference
Arduino programming language can be divided in three main parts: functions, values (variables and constants), and structure.
functions
For ...
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