1#!/usr/bin/env node
2
3/*
4 * Author: Brendan Le Foll <brendan.le.foll@intel.com>
5 * Copyright (c) 2015 Intel Corporation.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining
8 * a copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sublicense, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
14 *
15 * The above copyright notice and this permission notice shall be
16 * included in all copies or substantial portions of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
19 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
21 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
22 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
23 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
24 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 */
26
27var m = require('mraa'); //require mraa
28
29// helper function to go from hex val to dec
30function char(x) { return parseInt(x, 16); }
31
32x = new m.Spi(0)
33buf = new Buffer(4)
34buf[0] = char('0xf4')
35buf[1] = char('0x2e')
36buf[2] = char('0x3e')
37buf[3] = char('0x4e')
38buf2 = x.write(buf)
39console.log("Sent: " + buf.toString('hex') + ". Received: " + buf2.toString('hex'))
40
41
42