Energy Card

This feature is only available in ESP-DASH Pro

A card that displays energy usage with a distinctive energy/power icon. Supports numeric and string values with optional units/symbols, perfect for showing power consumption, usage, or similar measurements.

Initializer


/* 
  Energy Card
  Valid Arguments: (ESPDash dashboard, Card Type, const char* name, const char* symbol (optional) )
*/
Card card1(&dashboard, ENERGY_CARD, "Power Consumption", "kWh");

Callback

💡

Energy card doesn’t require any callback.

Updater


card1.update(int value);


card1.update(float value);


card1.update(String value);

Or you can also update the symbol along with the value like this:


card1.update(value, "kWh");

Reference

This is a reference sketch showing positions for intializer and updater.


 
...
 
/* Energy card initializer */
Card energy(&dashboard, ENERGY_CARD, "Power Consumption", "kWh");
 
 
void setup() {
  ...
 
  /* Energy card updater - can be used anywhere (apart from global scope) */
  energy.update(100);
}
 
void loop() {
  ...
}