display-segment

Controls a 7-segment Sparkfun Serial Display.

``js
var segmentlib = require('display-segment');
var led = segmentlib.use(hardware);

led.brightness(1.0);
led.display(49.99, {
leadingZero: false,
places: 2
});

// LED now displays "49.99"!
`

$3

Connect VCC and GND to Tessel. Connect SDA and SCL (the I2C) lines to the port you wish to use.

API

Load the library with var segmentlib = require('display-segment').

# segmentlib.use( port )→ SegmentLED
Returns a new SegmentLED object.

# led.clear( [next] )
Clear the segmented LED display.

# led.display( number, [options,] [next] )
Display a four-digit number. If leadingZero in options is set to false, no leading zeroes are displayed. If places in options is set, up to that many decimal places are included.

# led.brightness( value, [next] )
Control the brightness. value is a float from 0.0 to 1.0.

# led.segment( index, mask, [next] )
Bits 0-6 of the mask value correspond to the segments counterclockwise from the top of the digit. index is a value from 0-3 indicating the position of the digit, starting from the left (0).

# led.digit( index, number, [next] )
Set the digit at index to number from 0-9.

# led.decimal( mask, [next] )
Bits 0-6 of mask control the decimal points.

# led.reset( [next] )
Resets the display to factory settings.

# led.on( 'ready' )
The led object emits the ready` event once it's been fully loaded.

License

MIT licensed.