Label

Text on the page. Leave it unattached to keep the words you typed. Attach it to a pin when the sketch should replace the words.

Sample pin: none until attached

Set it up on the server

Sign in to the Box IO dashboard and open the project that uses this device key.
Turn on Edit.
In Edit, add Label.
Type the words in Text.
Leave Attach to a pin off for a fixed title. Turn it on, then set Device and Virtual pin, when a virtualWrite should change the words.
Set Color and Font size. Opacity is useful when the label sits on top of another widget.
Save the layout.
Flash the sketch below with the same device key, host, and port 5923. Keep BoxIO.run() in loop().

Properties

Sketch values are always strings, including numbers: BoxIO.setProperty(V2, "max", "200").

Property	Where to set it	Format	Example	Effect
`text`	Dashboard or sketch	Plain text	`Pump room`	The words shown. On an attached label, a non-empty pin value is shown instead, and text is the fallback.
`color`	Dashboard or sketch	#RRGGBB	`#e8eef8`	Text color.
`detached`	Dashboard	On means not attached to a pin	`on`	Unattached labels ignore the pin. Attached labels follow virtualWrite.
`label`	Dashboard or sketch	Plain text	`Pump`	Caption above the widget. On a round or oval button this is the caption, not the word on the button face.
`hideLabel`	Dashboard	On or off	`checked`	Hides the caption. Button face text, meter numbers, and label text stay visible.
`fontSize`	Dashboard	Whole number 8 to 160, or blank for automatic size	`28`	Text size in pixels inside the widget.
`opacity`	Dashboard	10% to 100%	`70%`	Lets an overlapping widget show through. 100% is solid.

Formatting

Unattached is the default. The Text field is what you see, and the pin boxes stay hidden.
Attached: after the sketch calls virtualWrite, that string replaces the text. Clear or missing values fall back to the Text field, then to a sketch setProperty(pin, "text", "...").
Hide label is on by default for this widget because the text itself is the content.

Sketch

Paste the device key over bx_paste_your_device_key_here. Wi-Fi boards include BoxIOEsp32.h. Ethernet boards use the same calls with an EthernetClient.

#define BOXIO_AUTH "bx_paste_your_device_key_here"
#define WIFI_SSID  "your-ssid"
#define WIFI_PASS  "your-password"
#define BOXIO_HOST "localhost"
#define BOXIO_PORT 5923

#include <BoxIOEsp32.h>

void setup() {
  BoxIO.begin(BOXIO_AUTH, WIFI_SSID, WIFI_PASS, BOXIO_HOST, BOXIO_PORT);
// Only used when the label is attached to V10.
  BoxIO.setProperty(10, "text", "Waiting");
  BoxIO.setProperty(10, "color", "#e8eef8");
  BoxIO.virtualWrite(10, "Pump room");
}

void loop() {
  BoxIO.run();

}

What you should see

An unattached label stays on the words you typed. An attached label on pin 10 changes when the sketch writes V10. There is no V10 macro; use the number 10.