Cards
You are reading the documentation for ESP-DASH v4.x.x, which is no longer the latest release. View the v5.x.x documentation.Time Sync Card
Synchronize the device clock with the browser time from the ESP-DASH Pro v4 dashboard.
ESP-DASH Pro feature. This functionality is available only in the commercial edition of ESP-DASH.The time sync card sends the current time from the browser to the device. Use it to set the device clock from the dashboard.
The time is taken from the browser. Use this card only when the browser and the device are in the same timezone.
Constructor
Card timeSync(&dashboard, TIME_SYNC_CARD, "Time Sync");Prop
Type
Callback
The callback fires when the user triggers a sync on the dashboard. value contains the time reported by the browser.
timeSync.attachCallback([&](const char* value) {
Serial.println("Time sync: " + String(value));
});Example
#include <Arduino.h>
#if defined(ESP8266)
#include <ESP8266WiFi.h>
#include <ESPAsyncTCP.h>
#elif defined(ESP32)
#include <WiFi.h>
#include <AsyncTCP.h>
#endif
#include <ESPAsyncWebServer.h>
#include <ESPDash.h>
const char* ssid = "YOUR_SSID";
const char* password = "YOUR_PASSWORD";
AsyncWebServer server(80);
ESPDash dashboard(&server);
Card timeSync(&dashboard, TIME_SYNC_CARD, "Time Sync");
void setup() {
Serial.begin(115200);
WiFi.mode(WIFI_STA);
WiFi.begin(ssid, password);
if (WiFi.waitForConnectResult() != WL_CONNECTED) {
Serial.println("WiFi connection failed");
return;
}
Serial.print("IP address: ");
Serial.println(WiFi.localIP());
timeSync.attachCallback([&](const char* value) {
Serial.println("Time sync: " + String(value));
});
server.begin();
}
void loop() {
// ...
}Notes
- The time sync card does not need
update().