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A library is a file that can be included into the code to add new instructions by combining many existing instructions and creating one easy to use instruction to call.

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Thank you for considering my question. I have been learning Arduino so I can teach coding basics to my son. I came across a fun project to interface bluetooth with an old singing Billy Bass so he can ...
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I'm searching for the path and the source code for the builtin (I think) function, name is: renderBitmap(). This function appears as a member of the ArduinoLEDMatrix class but its name doesn't appear ...
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I'm new to Arduino development. I use Arduino Nano v3 ATmega328P (Old Bootloader). I assembled 2 small boards, one of which is a transmitter with three buttons, and the second is a receiver with three ...
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I want to design an Arduino Uno/Nano library (an alternative to floats that uses less RAM) that uses a minimum of code space after compilation. Is there a (not too complicated) way to calculate or ...
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I am trying to edit an old code for a dot matrix display. This code was written on Arduino IDE in Windows 10, for DOIT ESP32 DEVKIT V1. I never had a problem with libraries in the Windows environment ...
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I'm testing the following code as a bridge between https://sourceforge.net/projects/qmodmaster/ and https://pypi.org/project/pyModSlave/. As hardware, I'm using a NodeMCU 1.0 and a USB/TTL converter. ...
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I am using PICSimLab to simulate a keypad. The configuration of the keypad is as shown in the picture: and the code is: #include <LiquidCrystal.h> #include <Key.h> #include <Keypad.h&...
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I'm trying to add the RPLidar library. I've already checked this solution, but it's not working for me, I get this error : Error: 13 INTERNAL: Library install failed: extracting archive: Not a ...
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I have found a sketch in Wokwi where a MAX7219 LED matrix is used. The sketch subject is to display 0 using <LedControl.h>. I don't understand why it's nessesary to send 0 unlike 1 in fourth ...
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I'm using a Nema 17 stepper motor (200 steps) and a DRV8825 motor driver. This is the configuration I am using: I am using a 9 V power supply. The dirPin is connected to pin 3 on the Arduino board, ...
Michael Junior's user avatar
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Say I'm working on a library^1 to which I want to add support for SD.h^2 but knowing for a fact that many microcotrollers don't support SD.h (therefore they result in compilation errors [eg. Attiny85])...
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I have been using a MKR WiFi 1010 board with GPS shield for a very long time (year+) and have not been able to solve my problems with the GPS data dropping out. The setup for my field application is a ...
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I am unable to install the esp_camera library. When I try to add the .zip, I get does not contain a valid library Everything about this ESP-32 Cam seems to rely on that library, and I can't find a way ...
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Please help! I purchased a 3-inch e-Paper Display from Waveshare, which appeared to suit my project well. The exemplary little code to show an image was easy to set up and to demonstrate functionality:...
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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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I am trying to upload a library to the Arduino Library Manager. I know the GitHub - arduino/library-registry: Arduino Library Manager list repository, and I have already read the instructions, but I ...
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I want to use the soft serial communication example. But when I compile it, it sais: /home/xxx/Arduino/SoftwareSerialExample/aa/aa.ino:28:28: schwerwiegender Fehler: SoftwareSerial.h: Datei oder ...
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I wish to create a rudimentary ethernet in/out - switch/hub where I can (sort of) daisy chain my boards. (I don't wish to use a ethernet switch/router/hub) One port would be acting as server The ...
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I'm trying to use an existing Arduino library on the Raspberry Pi Pico. The library is here: https://github.com/j-bellavance/EdgeDebounce/tree/master It's based on some interesting insight at Jack ...
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I wanted to write a library representing a sensor to later on have an array of sensors. I generated a file MoistureSensor.h: #ifndef MoistureSensor_h #define MoistureSensor_h #include <Arduino.h&...
Nico Sz's user avatar
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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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With reference to the Arduino Keyboard library, it does not have a keymap for the UK keyboard. I have tried to find a keyboard map that shows the hex value for the UK keyboard but I didn't have any ...
Susan's user avatar
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I am working on an autonomous robot using two 4-pin stepper motors, HC-SR04 ultrasonic sensor, 2 L298N motor drivers (one for each motor), and an Arduino Uno. My problem is that when I use the stepper ...
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I am trying to use a Waveshare 4.2inch e-paper display with an Adafruit Feather Adalogger M0, but am having issues with two separate instances of #define GET_STATUS being defined differently in ...
BeingPool's user avatar
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I'm trying to use a library function in my ISR function that uses the internal timer to trigger every 1 ms. The chip that I'm using is an ESP32-C3-MINI. Here is my current code: main.cpp #include <...
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I was tasked to take functions that work, and create a library with these functions. Take a look at the following function that existed inside a program: char* Num_to_HEX_char_array(int32_t value) { ...
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I am experimenting with creating my own Arduino libraries. Unfortunately, while the program compiles, the end result does not work. For purposes of experimentation, I have broken down the library in ...
user1584421's user avatar
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Error messages Arduino: 1.8.14 Hourly Build 2020/12/15 11:33 (Windows 10), Board: "Generic ESP8266 Module, 80 MHz, Flash, Disabled (new aborts on oom), Disabled, All SSL ciphers (most ...
Lasmon's user avatar
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I'm trying to set up a transmitter made by the following components : Attiny85 (I need 1MHZ speed) Cheap 433mhz transmitter (FS1000A) The library I am using is the Manchester library GitHub. The ...
BruceWawe's user avatar
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Just installed Arduino 2.0.3 and I attempted to build a sketch which includes a library that I manually installed in version 1.8.19 and it can't be found: In my program I have #include <DS3231.h>...
raddevus's user avatar
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I am working in an Arduino project in visual studio. I need to get and set time to a RTC clock. That's why I am adding a ds3231 header file in my project from GitHub. When I want to build "it's ...
Iqbal Hossain's user avatar
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I'm learning library making on arduino , I want to make a library that works with arrays a user sets, e.g: User sets array of int, when a certain function is been called the library will check if ...
Joseph Afodu's user avatar
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I want to make a project with a (Nokia 5110) display using u8g2 library. Here I have the code for my program: #include <Arduino.h> #include <U8g2lib.h> #include <TM1637Display.h> #...
kshysztof's user avatar
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PID library is available(built in) in standard installation of arduino IDE or do we have to download it additionaly after installing our IDE? How can i check which of libraries are available in my ...
DSP_CS's user avatar
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I can't seem to find any library online so I can start developing FreeRTOS tasks for the Arduino Nano 33 BLE in the Arduino IDE. Is FreeRTOS incompatible with this Arduino?
bro's user avatar
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I'm using Visual Studio Code and PlatformIO. I added some libraries to my project using platformio.ini: lib_deps = olikraus/U8g2@^2.34.4 crankyoldgit/IRremoteESP8266@^2.8.4 plerup/...
Mark's user avatar
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I have a sketch which I can upload without problem with the Arduino IDE. I installed the arduino-cli Version: 0.28.0 Commit: 06fb1909 Date: 2022-10-18T15:53:04Z. I want to compile and upload a code ...
ecjb's user avatar
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3 answers
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Say you want to investigate part of the code you use from a rather large library, but it's buried between all kinds of #defines and classes etc, that you're never gonna use in your code. Is there a ...
Gaai's user avatar
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I have got the problem, that my #define from main (.ino) is not considered by the comiler in my own libaries. This #define MQTT_MODULE is only considered in the main (.ino) programm, but not in ...
stevo's user avatar
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I've been doing projects with the arduino boards for a long time and accordingly also with the libs from adafruit etc. But that was too boring for me and I wanted to get more into the matter, so I ...
highling's user avatar
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2 votes
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I have the LiquidCrystal library installed but all the examples are for 4bit connection, I want to drive the LCD with 8bit. In LiquidCrystal.cpp file it says; When the display powers up, it is ...
ElectronSurf's user avatar
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I want to try out this library: https://github.com/connornishijima/arduino-volume3 I downloaded the zip file from github, renamed it, and included it as a library in the IDE. So run one of the ...
user1584421's user avatar
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I'm currently using a Sparkfun 4 Half-Bridge load sensor (50 Kg) with combinator and amplifier both are from the Sparkfun. Link:https://www.sparkfun.com/products/10245 (For Load Sensors)https://www....
Ayub 's user avatar
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I am messing around with the Arduino TVout library and I have created some multi-character tiles (I don't know what else to call them). Just to start out, I created a simple X that spans across 4 ...
mhay10's user avatar
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I'm using PlatformIO, and I'm trying to create a library who uses another library in it. (1) For that I created an empty library called ABCD.h stored in a newrep github repository. (2) 3rd party ...
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(1) I'm trying to work with libraries in PlatformIO format", for , of a library, located in Arduino's libraries, where code is llocated under \src directry. (2) Any other library, not it "...
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How i can create a Json Array with double values and 2 decimal point using the ArduinoJson Library? https://arduinojson.org/v6/how-to/configure-the-serialization-of-floats/ In the folowing small ...
Carlos Costa's user avatar
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I am trying to use the stepper library and the stepper object is documented like this This function creates a new instance of the Stepper class that represents a particular stepper motor attached to ...
Confused individual's user avatar
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I activated timer 1 and its interrupt on the 2560 board and it works properly. Now I want to run Timer 4 as well. I installed the Timer 4 library, but when I compile the program, I get the following ...
ali's user avatar
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When using the AccelStepper library to control the motor, I need the current position of the motor at any given time when in motion. However, the functions in this library blocks so currentPosition() ...
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