Case for "ESP32 + relay + integrated 230V AC"

Sat, 11 Oct 2025 11:38:04 +0000

Hello
looking for a case for this device: ESP32 + relay + integrated 230V AC
https://f1atb.fr/esp32-relay-integrated-...y-sensors/
any ideas? Thanks!

ESP32 connected via Ethernet

Wed, 25 Jun 2025 16:31:51 +0000

The ESP32 is a high-performance microcomputer with a dual-core processor, digital and analog interfaces, and Bluetooth and Wi-Fi communication capabilities. Some boards also include an RJ45 connector for direct Ethernet connectivity.
See the video here : https://youtu.be/LywEGlftM3s

Web page on the subject, source code...

Watchdog timer in ESP32 board manager v3.0.x - Demo / Example

Mon, 01 Jul 2024 11:45:50 +0000

Watchdog timer in ESP32 board manage 3.0x changes a lot from previous implementation. Here is a simple example how to implement it (Arduino IDE).
One key point is to set a delay of minimum 1 ms after the :
esp_task_wdt_reset();
delay(1); // <------------------------------ Mandatory

Here after the example to be tested:
- watchog is set to 25s
- In a cycle of 20 s. The reset is done the first 10s, then no reset during 10s.
- After 60s no reset at all the system will crashes and restart at 75s.

Regards F1ATB

Code :
#include 

#define WDT_TIMEOUT 25 // Timeout in seconds

esp_err_t ESP32_ERROR;

int i = 0;

int last = millis();

void setup() {

  Serial.begin(115200);

  delay(100);

  Serial.println("Configuring WDT...");

  Serial.print("Watchdog Timeout (in seconds) set to : ");

  Serial.println(WDT_TIMEOUT);

  esp_task_wdt_deinit();

  // Task Watchdog configuration 

  esp_task_wdt_config_t wdt_config = {

    .timeout_ms = WDT_TIMEOUT * 1000,                 // Convertin ms

    .idle_core_mask = (1 << portNUM_PROCESSORS) - 1,  // Bitmask of all cores, https://github.com/espressif/esp-idf/blob/v5.2.2/examples/system/task_watchdog/main/task_watchdog_example_main.c

    .trigger_panic = true                             // Enable panic to restart ESP32

  };

  // WDT Init

  ESP32_ERROR = esp_task_wdt_init(&wdt_config);

   Serial.println("Last Reset : " + String(esp_err_to_name(ESP32_ERROR)));

   esp_task_wdt_add(NULL);  //add current thread to WDT watch

}

void loop() {

  if (millis() - last >= 1000) { // Task every second

    last = millis();

    Serial.print(i);

    Serial.print("s : ");

    i++;

    if (i % 20 <= 10 && i<60) { //Reset only during 10s the first minute

      Serial.println(" Resetting WDT...");

      esp_task_wdt_reset();

      delay(1);  //VERY VERY IMPORTANT for Watchdog Reset to apply. At least 1 ms

      if (i % 20 == 10) { // No reset after 10s for test

        Serial.println("Stopping WDT reset.");

      }

    } 

  }

}

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Case for "ESP32 + relay + integrated 230V AC"

ESP32 connected via Ethernet

Watchdog timer in ESP32 board manager v3.0.x - Demo / Example