feat(ticker): extend ticker by adding restart timer options

[nielsnl68]

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Checklist

1. Please provide specific title of the PR describing the change, including the component name (eg. „Update of Documentation link on Readme.md“)
2. Please provide related links (eg. Issue which will be closed by this Pull Request)
3. Please update relevant Documentation if applicable
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Description of Change

I did found that the Ticker component was missing the option to Reset the counter as possible with the ESP-IDF framework.
It adds 3 new methods restart(float seconds), restart_ms(uint64_t milliseconds), restart_us(uint64_t micros).

Test Scenarios

#include <Ticker.h>

#ifndef LED_BUILTIN
#define LED_BUILTIN 13
#endif

#define PUSH_BUTTON 0

Ticker flipper;

int buttonState = 0;  // variable for reading the pushbutton status


void flip() {
  int state = digitalRead(LED_BUILTIN);  // get the current state of GPIO1 pin
  digitalWrite(LED_BUILTIN, !state);     // set pin to the opposite state
}

void setup() {
  pinMode(LED_BUILTIN, OUTPUT);
  digitalWrite(LED_BUILTIN, LOW);
  pinMode(PUSH_BUTTON, INPUT);

  // flip the pin every 0.3s
  flipper.attach(0.3, flip);
}

void loop() {
  buttonState = digitalRead(PUSH_BUTTON);
  if (buttonState == HIGH) {
    flipper.restart(0.3);
  }
}

(eg. I have tested my Pull Request on Arduino-esp32 core v3.3.5 with ESP32-S3 Board with this scenario)

Related links

Please provide links to related issue, PRs etc.

(eg. Closes #number of issue)

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[github-actions]

Warnings

⚠️

Some issues found for the commit messages in this PR: the commit message "Add restart methods for timer with different units": summary looks empty type/action looks empty the commit message "Fix missing closing parenthesis in restart methods": summary looks empty type/action looks empty the commit message "change(Ticker): Add restart keywords to keywords.txt": scope/component should be lowercase without whitespace, allowed special characters are _ / . , * - . the commit message "change(Ticker): Refactor restart methods for better clarity and usability.": scope/component should be lowercase without whitespace, allowed special characters are _ / . , * - . summary should not end with a period (full stop) the commit message "change(Ticker): implement the methods in CPP and leave just the declarations in the header": summary appears to be too long scope/component should be lowercase without whitespace, allowed special characters are _ / . , * - . Please fix these commit messages - here are some basic tips: follow Conventional Commits style correct format of commit message should be: <type/action>(<scope/component>): <summary>, for example fix(esp32): Fixed startup timeout issue allowed types are: change,ci,docs,feat,fix,refactor,remove,revert,test sufficiently descriptive message summary should be between 10 to 72 characters and start with upper case letter avoid Jira references in commit messages (unavailable/irrelevant for our customers) TIP: Install pre-commit hooks and run this check when committing (uses the Conventional Precommit Linter).

👋 Hello nielsnl68, we appreciate your contribution to this project!

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Generated by 🚫 dangerJS against b031a7a

[Copilot]

Pull request overview

This PR adds restart functionality to the Ticker library, allowing timers to be restarted without needing to detach and re-attach them. This extends the Ticker API to match the capabilities available in the ESP-IDF framework.

Changes:

• Added three new restart methods: restart(), restart_ms(), and restart_us()
• Methods follow the existing naming convention and time unit conversion patterns
• Implementation checks if timer is active before attempting restart

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[github-actions]

Memory usage test (comparing PR against master branch)

The table below shows the summary of memory usage change (decrease - increase) in bytes and percentage for each target.

Memory	FLASH [bytes]		FLASH [%]		RAM [bytes]		RAM [%]
Target	DEC	INC	DEC	INC	DEC	INC	DEC	INC
ESP32	0	⚠️ +84	0.00	⚠️ +0.03	0	0	0.00	0.00
ESP32C3	0	0	0.00	0.00	0	0	0.00	0.00
ESP32C5	0	0	0.00	0.00	0	0	0.00	0.00
ESP32C6	0	0	0.00	0.00	0	0	0.00	0.00
ESP32H2	0	0	0.00	0.00	0	0	0.00	0.00
ESP32P4	0	0	0.00	0.00	0	0	0.00	0.00
ESP32S2	0	⚠️ +84	0.00	⚠️ +0.03	0	0	0.00	0.00
ESP32S3	0	0	0.00	0.00	0	0	0.00	0.00

Click to expand the detailed deltas report [usage change in BYTES]

Target	ESP32		ESP32C3		ESP32C5		ESP32C6		ESP32H2		ESP32P4		ESP32S2		ESP32S3
Example	FLASH	RAM	FLASH	RAM	FLASH	RAM	FLASH	RAM	FLASH	RAM	FLASH	RAM	FLASH	RAM	FLASH	RAM
libraries/Ticker/examples/Blinker	⚠️ +84	0	0	0	-	-	-	-	0	0	0	0	⚠️ +84	0	-	-
libraries/Ticker/examples/TickerBasic	⚠️ +84	0	0	0	-	-	-	-	0	0	0	0	⚠️ +84	0	-	-
libraries/Ticker/examples/TickerParameter	⚠️ +84	0	0	0	-	-	-	-	0	0	0	0	⚠️ +84	0	-	-
libraries/Update/examples/OTAWebUpdater	⚠️ +84	0	0	0	-	-	-	-	-	-	0	0	⚠️ +84	0	-	-

[github-actions]

Test Results

 90 files   90 suites   33m 0s ⏱️
 67 tests  67 ✅ 0 💤 0 ❌
683 runs  683 ✅ 0 💤 0 ❌

Results for commit b031a7a.

♻️ This comment has been updated with latest results.

[me-no-dev]

Please implement the methods in CPP and leave just the declarations in the header

[nielsnl68]

Please implement the methods in CPP and leave just the declarations in the header

Done.

[nielsnl68]

Thanks for adding this PR.