Touch Sensor

The Touch sensor class provides access to a touch panel controller.

Constructor

Touch(options)

Creates a new Touch object instance.

Touch(options)

Parameters

options

An object of properties used to construct the class.

sensor - The hardware connection definition.

interval (optional) - The sampling interval in milliseconds.

Instance Methods

sample()

Returns an array of touch objects or undefined if no touch is in progress.

sample()

Return Value

An array of objects, each containing:

x - A number indicating the X coordinate of the touch point.

y - A number indicating the Y coordinate of the touch point.

id - A number indicating which touch point this entry corresponds to.

Examples

const sensor = new device.sensor.Touch({
  sensor: {
    io: device.io.I2C,
    address: 0x38
  }
});

const sample = sensor.sample();
if (sample) {
  sample.forEach(touch => {
    console.log(`Touch ${touch.id} at (${touch.x}, ${touch.y})`);
  });
}

Specifications

Touch