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[X-croot]

RelayXCR

RelayXCR is a simple and lightweight Arduino library for controlling one or more relay modules using digital pins. It supports both active HIGH and active LOW relays, making it flexible for a wide range of relay boards.

Features

• Supports multiple relay instances
• Works with both active HIGH and active LOW logic
• Simple API: on(), off(), toggle(), isOn()
• Lightweight and easy to integrate

Installation

1. Download or clone the repository.
2. Copy the RelayXCR folder into your Arduino libraries/ directory.
3. Restart the Arduino IDE.

Usage

Include the Library

#include <RelayXCR.h>

Create Relay Objects

RelayXCR relay1(7);          // Active HIGH (default)
RelayXCR relay2(8, false);   // Active LOW

In setup()

void setup() {
  relay1.begin();
  relay2.begin();
}

In loop()

void loop() {
  relay1.on();
  delay(1000);
  relay1.off();
  delay(1000);
  relay2.toggle();
  delay(1000);
}

API Reference

• begin() – Initializes the relay pin
• on() – Turns the relay on
• off() – Turns the relay off
• toggle() – Switches the relay state
• isOn() – Returns true if relay is on, false otherwise

Compatibility

• Works with any Arduino board
• Tested with HC-SR501 relay modules, Songle relays, and more

License

MIT License

---

Created by X-croot
Email: [unuvarcan111@gmail.com](mailto:unuvarcan111@gmail.com)

[github-actions]

Hi @X-croot.
Your pull request has been detected as something other than a Library Manager submission.
A maintainer will need to review it before it can be merged.

If you intended to submit a library, please check the instructions and update your pull request if necessary:
https://github.com/arduino/library-registry/blob/main/README.md#instructions

[github-actions]

A problem was found with your submission https://github.com/X-croot/L298N-XCR

❌ ERROR: Submission URL is already in the Library Manager index.

[github-actions]

A problem was found with your submission https://github.com/AbdulKus/72x40oled_lib

❌ ERROR: Submission URL is already in the Library Manager index.

[github-actions]

❌ ERROR: Arduino Lint found errors with https://github.com/X-croot/RelayXCR:

Linting library in RelayXCR
ERROR: Library name RelayXCR not found in the Library Manager index. Library names are not allowed to change after being
       added to the index.                                                                                              
       See: https://github.com/arduino/library-registry/blob/main/FAQ.md#how-can-i-change-a-librarys-name               
       (Rule LP018)                                                                                                     

Linter results for project: 1 ERRORS, 0 WARNINGS

-------------------

Linting sketch in RelayXCR/examples/test

Linter results for project: no errors or warnings

-------------------

Linter results for projects: 1 ERRORS, 0 WARNINGS

[github-actions]

Thanks for your interest in contributing to the Arduino Library Manager index @X-croot
Please resolve the error(s) mentioned in the previous comment.

After resolving the issue, trigger this check again by doing one of the following:

• Commit the required change to the branch you submitted this pull request from.
• Comment here, mentioning @ArduinoBot in the comment.

❗ NOTE: It is not necessary to open a new pull request. ❗

More information:
https://github.com/arduino/library-registry/blob/main/README.md#if-the-problem-is-with-the-pull-request

[X-croot]

@ArduinoBot

[github-actions]

Hello! I'm checking your submission again.

[github-actions]

Hi @X-croot.
Your pull request has been detected as something other than a Library Manager submission.
A maintainer will need to review it before it can be merged.

If you intended to submit a library, please check the instructions and update your pull request if necessary:
https://github.com/arduino/library-registry/blob/main/README.md#instructions

[github-actions]

A problem was found with your submission https://github.com/AbdulKus/72x40oled_lib

❌ ERROR: Submission URL is already in the Library Manager index.

[github-actions]

A problem was found with your submission https://github.com/X-croot/L298N-XCR

❌ ERROR: Submission URL is already in the Library Manager index.

[github-actions]

❌ ERROR: Arduino Lint found errors with https://github.com/X-croot/RelayXCR:

Linting library in RelayXCR
ERROR: Library name RelayXCR not found in the Library Manager index. Library names are not allowed to change after being
       added to the index.                                                                                              
       See: https://github.com/arduino/library-registry/blob/main/FAQ.md#how-can-i-change-a-librarys-name               
       (Rule LP018)                                                                                                     

Linter results for project: 1 ERRORS, 0 WARNINGS

-------------------

Linting sketch in RelayXCR/examples/test

Linter results for project: no errors or warnings

-------------------

Linter results for projects: 1 ERRORS, 0 WARNINGS

[github-actions]

Thanks for your interest in contributing to the Arduino Library Manager index @X-croot
Please resolve the error(s) mentioned in the previous comment.

After resolving the issue, trigger this check again by doing one of the following:

• Commit the required change to the branch you submitted this pull request from.
• Comment here, mentioning @ArduinoBot in the comment.

❗ NOTE: It is not necessary to open a new pull request. ❗

More information:
https://github.com/arduino/library-registry/blob/main/README.md#if-the-problem-is-with-the-pull-request