alexielm / multitask

MultiTask

MultiTask is a cooperative multitasking library for ESP8266, enabling multiple tasks to run with stack switching. It manages task scheduling and execution seamlessly, allowing efficient task handling in resource-constrained environments.

Features

• Cooperative multitasking for ESP8266
• Stack switching for multiple tasks
• Easy-to-use API for task management and delays

Installation

1. Download the MultiTask library from GitHub.
2. Place the MultiTask folder in your Arduino libraries directory.
3. Restart the Arduino IDE.

Usage

Include the MultiTask library in your sketch and use the provided functions to create and manage tasks.

Functions

• void RunTask(void (*taskFunction)(), uint8_t* taskStack, int stackSize);
  • Adds a new task to be managed by the scheduler.
• void TaskDelay(unsigned long delay);
  • Delays the execution of the current task for the specified duration.
• void NextTask();
  • Switches to the next task in the scheduler.

Example

Here's an example demonstrating how to use the MultiTask library:

#include <Arduino.h>
#include "TaskSystem.h"

//== App Code ===

#define LED_PIN 2  // Connected to D4

uint8_t newStack1[1024];
void Task1() {
    while (true) {
        Serial.println("Main");
        TaskDelay(1000);
    }
}

uint8_t newStack2[1024];
void Task2() {
    for (int i = 0; i < 5; i++) {
        Serial.print(i);
        Serial.println("Sub");
        TaskDelay(275);
    }
}

void setup() {
    Serial.begin(115200);
    delay(1000);
    Serial.println();
    Serial.println("App started ----------------------");
    delay(500);

    pinMode(LED_PIN, OUTPUT);
    digitalWrite(LED_PIN, HIGH);

    RunTask(Task1, newStack1, sizeof(newStack1));
    RunTask(Task2, newStack2, sizeof(newStack2));
}

void loop() {
    digitalWrite(LED_PIN, LOW);
    TaskDelay(400);
    digitalWrite(LED_PIN, HIGH);
    TaskDelay(600);
}