Slider Widget

⚡ Control

The Slider lets you drag a handle across a numeric range and sends the selected value to a virtual pin in real time. Perfect for dimmer controls, motor speed, servo angle, or any continuously variable output.

Default size: 3 × 1 grid cells

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Configuration

Property	Type	Default	Description
min	number	0	Minimum value
max	number	255	Maximum value
orientation	horizontal | vertical	horizontal	Slider direction
color	hex color	#3B82F6	Track fill color
Device	device	—	The device to write to
Pin	V0–V255	—	The virtual pin to write to
Label	string	—	Widget label

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Firmware example

// LED dimmer (0–255)
VWIRE_RECEIVE(V3) {
  int brightness = param.asInt();   // 0–255
  analogWrite(LED_PIN, brightness);
}

// Servo angle (0–180)
VWIRE_RECEIVE(V4) {
  int angle = param.asInt();
  myServo.write(angle);
}

// Motor speed percentage (0–100)
VWIRE_RECEIVE(V5) {
  float percent = param.asFloat();
  int pwm = map(percent, 0, 100, 0, 255);
  analogWrite(MOTOR_PIN, pwm);
}

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Step values

Use case	min	max	step
LED brightness	0	255	1
Servo angle	0	180	1
Fan speed %	0	100	5
Temperature setpoint	16	30	0.5
Volume	0	100	2

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Orientation

• Horizontal — standard left-to-right; recommended for wide layouts (3×1 default)
• Vertical — bottom-to-top; use in a taller cell (1×3 or 2×3) for fader-style controls