ESPDailyTaskNTP

Library for ESP8266 to execute a task once per day at a specified time using NTP synchronization and deep sleep.

📦 Dependencies

Install these libraries first:

📥 Installation

1. Download this repository as ZIP
2. Arduino IDE → Sketch → Include Library → Add .ZIP Library
3. Install the SNTPtime dependency (link above)

⚙️ Configuration

📶 WiFi Credentials

Option 1: Define credentials directly in your sketch (recommended):

char my_SSID[] = "your-wifi-name";
char my_PASSWORD[] = "your-wifi-password";

Option 2: Create a credentials.h file in your Arduino libraries folder:

char my_SSID[] = "your-wifi-name";
char my_PASSWORD[] = "your-wifi-password";

Then include it with #include <credentials.h>.

🔌 Wiring

Connect a reset pin (e.g., D2) to RST for deep sleep wake-up:

💡 Usage

#include <ESP8266WiFi.h>
#include <ESPDailyTaskNTP.h>
#include <SNTPtime.h>

char my_SSID[] = "your-wifi";
char my_PASSWORD[] = "your-password";

#define RESET_PIN D2

// Wake up at 12:00, timezone +1.0 (CET)
ESPDailyTaskNTP dailyTask(12, 0, 1.0, my_SSID, my_PASSWORD, RESET_PIN);

void setup() {
  Serial.begin(115200);

  dailyTask.sleepOneDay();

  // Your daily task code here
  Serial.println("Doing daily task...");

  dailyTask.backToSleep();
}

void loop() {
  // Never reached - device is sleeping
}

📁 Examples