di-sensors/lib/sensors/groveRgbLcd.js

Drivers and examples for using DI_Sensors in Node.js

'use strict';

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

// https://www.dexterindustries.com/GoPiGo/
// https://github.com/DexterInd/DI_Sensors
//
// Copyright (c) 2017 Dexter Industries
// Released under the MIT license (http://choosealicense.com/licenses/mit/).
// For more information see https://github.com/DexterInd/GoPiGo3/blob/master/LICENSE.md

var Sensor = require('./base/sensor');

var RgbLcd = function () {
    function RgbLcd() {
        _classCallCheck(this, RgbLcd);

        this.rgbDevice = new Sensor('RPI_1', 0x62);
        this.txtDevice = new Sensor('RPI_1', 0x3e);
    }

    _createClass(RgbLcd, [{
        key: 'setRGB',
        value: function setRGB(r, g, b) {
            this.rgbDevice.i2c.writeReg8(0, 0);
            this.rgbDevice.i2c.writeReg8(1, 0);
            this.rgbDevice.i2c.writeReg8(0x08, 0xaa);
            this.rgbDevice.i2c.writeReg8(4, r);
            this.rgbDevice.i2c.writeReg8(3, g);
            this.rgbDevice.i2c.writeReg8(2, b);
        }
    }, {
        key: 'textCommand',
        value: function textCommand(cmd) {
            this.txtDevice.i2c.writeReg8(0x80, cmd);
        }
    }, {
        key: 'setText',
        value: function setText(text) {
            var noRefresh = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;

            var refreshCmd = !noRefresh ? 0x01 : 0x02;

            this.textCommand(refreshCmd); // clear or no-refresh
            this.txtDevice.i2c.mwait(5);
            this.textCommand(0x08 | 0x04); // display on, no cursor
            this.textCommand(0x28); // 2 lines
            this.txtDevice.mwait(5);
            var count = 0;
            var row = 0;
            for (var i = 0, len = text.length; i < len; i++) {
                var c = text[i];
                if (c === '\n' || count === 16) {
                    count = 0;
                    row += 1;
                    if (row === 2) {
                        break;
                    }
                    this.textCommand(0xc0);
                    if (c === '\n') {
                        break;
                    }
                }
                count++;
                this.txtDevice.i2c.writeReg8(0x40, c.charCodeAt());
            }
        }
    }, {
        key: 'setTextNoRefresh',
        value: function setTextNoRefresh(text) {
            this.setText(text, true);
        }
    }]);

    return RgbLcd;
}();

module.exports = RgbLcd;