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adafruitms1438: Initial implementation

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The library implements support for the Adafruit MotorShield 1438:
http://www.adafruit.com/products/1438

This shield supports 4 DC motors or 2 Stepper motors.

It makes use of the pca9685 UPM library, and therefore requires that
PR #123 and PR #134 are merged first:

PR 123: pkgconfig.in: allow a module to specify dependencies on
another module

PR 134: pca9685: Initial implementation

Signed-off-by: Jon Trulson <jtrulson@ics.com>
Signed-off-by: Zion Orent <zorent@ics.com>
Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
This commit is contained in:
Jon Trulson
2015-03-04 15:36:56 -07:00
committed by Mihai Tudor Panu
parent 2aa24162c3
commit da0071ae71
10 changed files with 923 additions and 0 deletions
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92
examples/javascript/adafruitms1438-stepper.js Normal file
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/*jslint node:true, vars:true, bitwise:true, unparam:true */
/*jshint unused:true */
/*
* Author: Zion Orent <zorent@ics.com>
* Copyright (c) 2015 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
function exit()
{
console.log("Exiting");
myMotorShield_obj = null;
if (MotorShield_lib)
{
MotorShield_lib.cleanUp();
MotorShield_lib = null;
}
process.exit(0);
}
var MotorShield_lib = require('jsupm_adafruitms1438');
/* Import header values */
var I2CBus = MotorShield_lib.ADAFRUITMS1438_I2C_BUS;
var I2CAddr = MotorShield_lib.ADAFRUITMS1438_DEFAULT_I2C_ADDR;
var M12motor = MotorShield_lib.AdafruitMS1438.STEPMOTOR_M12;
var MotorDirCW = MotorShield_lib.AdafruitMS1438.DIR_CW;
var MotorDirCCW = MotorShield_lib.AdafruitMS1438.DIR_CCW;
// Instantiate an Adafruit MS 1438 on I2C bus 0
var myMotorShield_obj = new MotorShield_lib.AdafruitMS1438(I2CBus, I2CAddr);
// Setup for use with a stepper motor connected to the M1 & M2 ports
// disable first, to be safe
myMotorShield_obj.disableStepper(M12motor);
// configure for a NEMA-17, 200 steps per revolution
myMotorShield_obj.stepConfig(M12motor, 200);
// set speed at 10 RPM's
myMotorShield_obj.setStepperSpeed(M12motor, 10);
myMotorShield_obj.setStepperDirection(M12motor, MotorDirCW);
console.log("Enabling...");
myMotorShield_obj.enableStepper(M12motor);
console.log("Rotating 1 full revolution at 10 RPM speed.");
myMotorShield_obj.stepperSteps(M12motor, 200);
console.log("Sleeping for 2 seconds...");
setTimeout(function()
{
console.log("Rotating 1/2 revolution in opposite direction at 10 RPM speed.");
myMotorShield_obj.setStepperDirection(M12motor, MotorDirCCW);
myMotorShield_obj.stepperSteps(M12motor, 100);
console.log("Disabling...");
myMotorShield_obj.disableStepper(M12motor);
exit();
}, 2000);
process.on('SIGINT', function()
{
exit();
});

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examples/javascript/adafruitms1438.js Normal file
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/*jslint node:true, vars:true, bitwise:true, unparam:true */
/*jshint unused:true */
/*
* Author: Zion Orent <zorent@ics.com>
* Copyright (c) 2015 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
function exit()
{
console.log("Exiting");
myMotorShield_obj = null;
if (MotorShield_lib)
{
MotorShield_lib.cleanUp();
MotorShield_lib = null;
}
process.exit(0);
}
var MotorShield_lib = require('jsupm_adafruitms1438');
/* Import header values */
var I2CBus = MotorShield_lib.ADAFRUITMS1438_I2C_BUS;
var I2CAddr = MotorShield_lib.ADAFRUITMS1438_DEFAULT_I2C_ADDR;
var M3motor = MotorShield_lib.AdafruitMS1438.MOTOR_M3;
var MotorDirCW = MotorShield_lib.AdafruitMS1438.DIR_CW;
var MotorDirCCW = MotorShield_lib.AdafruitMS1438.DIR_CCW;
// Instantiate an Adafruit MS 1438 on I2C bus 0
var myMotorShield_obj = new MotorShield_lib.AdafruitMS1438(I2CBus, I2CAddr);
// Setup for use with a DC motor connected to the M3 port
// set a PWM period of 50Hz
myMotorShield_obj.setPWMPeriod(50);
// disable first, to be safe
myMotorShield_obj.disableMotor(M3motor);
// set speed at 50%
myMotorShield_obj.setMotorSpeed(M3motor, 50);
myMotorShield_obj.setMotorDirection(M3motor, MotorDirCW);
process.stdout.write("Spin M3 at half speed for 3 seconds, ");
console.log("then reverse for 3 seconds.");
myMotorShield_obj.enableMotor(M3motor);
setTimeout(function()
{
console.log("Reversing M3");
myMotorShield_obj.setMotorDirection(M3motor, MotorDirCCW);
}, 3000);
setTimeout(function()
{
console.log("Stopping M3");
myMotorShield_obj.disableMotor(M3motor);
exit();
}, 6000);
process.on('SIGINT', function()
{
exit();
});