NMF Atlantis / Mbed 2 deprecated NMFAtlantis_Final

Code required to drive the microcontroller of the NMF Atlantis

Dependencies:   mbed WakeUp DHT

RangeFinder.cpp@0:dbaef09f6d82, 2020-01-20 (annotated)

Committer:
nmf_atlantis
Date:
Mon Jan 20 15:47:07 2020 +0000
Revision:
0:dbaef09f6d82
NMF Atlantis final version

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nmf_atlantis 0:dbaef09f6d82 1 /* Copyright (c) 2012 Nick Ryder, University of Oxford
nmf_atlantis 0:dbaef09f6d82 2 * nick.ryder@physics.ox.ac.uk
nmf_atlantis 0:dbaef09f6d82 3 *
nmf_atlantis 0:dbaef09f6d82 4 * MIT License
nmf_atlantis 0:dbaef09f6d82 5 *
nmf_atlantis 0:dbaef09f6d82 6 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
nmf_atlantis 0:dbaef09f6d82 7 * and associated documentation files (the "Software"), to deal in the Software without restriction,
nmf_atlantis 0:dbaef09f6d82 8 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
nmf_atlantis 0:dbaef09f6d82 9 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
nmf_atlantis 0:dbaef09f6d82 10 * furnished to do so, subject to the following conditions:
nmf_atlantis 0:dbaef09f6d82 11 *
nmf_atlantis 0:dbaef09f6d82 12 * The above copyright notice and this permission notice shall be included in all copies or
nmf_atlantis 0:dbaef09f6d82 13 * substantial portions of the Software.
nmf_atlantis 0:dbaef09f6d82 14 *
nmf_atlantis 0:dbaef09f6d82 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
nmf_atlantis 0:dbaef09f6d82 16 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
nmf_atlantis 0:dbaef09f6d82 17 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
nmf_atlantis 0:dbaef09f6d82 18 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
nmf_atlantis 0:dbaef09f6d82 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
nmf_atlantis 0:dbaef09f6d82 20 */
nmf_atlantis 0:dbaef09f6d82 21
nmf_atlantis 0:dbaef09f6d82 22
nmf_atlantis 0:dbaef09f6d82 23 #include "RangeFinder.h"
nmf_atlantis 0:dbaef09f6d82 24
nmf_atlantis 0:dbaef09f6d82 25 RangeFinder::RangeFinder(PinName pin, int pulsetime, float scale, int time):
nmf_atlantis 0:dbaef09f6d82 26 pio(pin), scale(scale), pulsetime(pulsetime), timeout(time) {
nmf_atlantis 0:dbaef09f6d82 27 }
nmf_atlantis 0:dbaef09f6d82 28
nmf_atlantis 0:dbaef09f6d82 29 RangeFinder::~RangeFinder() {
nmf_atlantis 0:dbaef09f6d82 30 }
nmf_atlantis 0:dbaef09f6d82 31
nmf_atlantis 0:dbaef09f6d82 32 float RangeFinder::read_m() {
nmf_atlantis 0:dbaef09f6d82 33 pio.write_us(1, pulsetime);
nmf_atlantis 0:dbaef09f6d82 34 float t = (float) pio.read_high_us(timeout);
nmf_atlantis 0:dbaef09f6d82 35 if (t == -1.0) {
nmf_atlantis 0:dbaef09f6d82 36 return -1.0;
nmf_atlantis 0:dbaef09f6d82 37 }
nmf_atlantis 0:dbaef09f6d82 38 return t / scale;
nmf_atlantis 0:dbaef09f6d82 39 }
nmf_atlantis 0:dbaef09f6d82 40