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88 lines
2.5 KiB
JavaScript
88 lines
2.5 KiB
JavaScript
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/*
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* Author: Zion Orent <zorent@ics.com>
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* Copyright (c) 2015 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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function exit()
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{
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console.log("Exiting");
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myMotorShield_obj = null;
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if (MotorShield_lib)
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{
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MotorShield_lib.cleanUp();
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MotorShield_lib = null;
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}
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process.exit(0);
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}
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var MotorShield_lib = require('jsupm_adafruitms1438');
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/* Import header values */
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var I2CBus = MotorShield_lib.ADAFRUITMS1438_I2C_BUS;
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var I2CAddr = MotorShield_lib.ADAFRUITMS1438_DEFAULT_I2C_ADDR;
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var M3motor = MotorShield_lib.AdafruitMS1438.MOTOR_M3;
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var MotorDirCW = MotorShield_lib.AdafruitMS1438.DIR_CW;
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var MotorDirCCW = MotorShield_lib.AdafruitMS1438.DIR_CCW;
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// Instantiate an Adafruit MS 1438 on I2C bus 0
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var myMotorShield_obj = new MotorShield_lib.AdafruitMS1438(I2CBus, I2CAddr);
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// Setup for use with a DC motor connected to the M3 port
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// set a PWM period of 50Hz
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myMotorShield_obj.setPWMPeriod(50);
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// disable first, to be safe
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myMotorShield_obj.disableMotor(M3motor);
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// set speed at 50%
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myMotorShield_obj.setMotorSpeed(M3motor, 50);
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myMotorShield_obj.setMotorDirection(M3motor, MotorDirCW);
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process.stdout.write("Spin M3 at half speed for 3 seconds, ");
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console.log("then reverse for 3 seconds.");
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myMotorShield_obj.enableMotor(M3motor);
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setTimeout(function()
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{
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console.log("Reversing M3");
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myMotorShield_obj.setMotorDirection(M3motor, MotorDirCCW);
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}, 3000);
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setTimeout(function()
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{
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console.log("Stopping M3");
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myMotorShield_obj.disableMotor(M3motor);
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exit();
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}, 6000);
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process.on('SIGINT', function()
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{
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exit();
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});
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