Adam Green
Library for interfacing to Sparkfun Weather Meters.
Dependents: WeatherStation Deneme testgeneral ... more
Anemometer.cpp@0:457832d52954, 2012-02-25 (annotated)
- Committer:
- AdamGreen
- Date:
- Sat Feb 25 03:23:51 2012 +0000
- Revision:
- 0:457832d52954
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| AdamGreen | 0:457832d52954 | 1 | /* Copyright 2012 Adam Green (http://mbed.org/users/AdamGreen/) |
| AdamGreen | 0:457832d52954 | 2 | |
| AdamGreen | 0:457832d52954 | 3 | Licensed under the Apache License, Version 2.0 (the "License"); |
| AdamGreen | 0:457832d52954 | 4 | you may not use this file except in compliance with the License. |
| AdamGreen | 0:457832d52954 | 5 | You may obtain a copy of the License at |
| AdamGreen | 0:457832d52954 | 6 | |
| AdamGreen | 0:457832d52954 | 7 | http://www.apache.org/licenses/LICENSE-2.0 |
| AdamGreen | 0:457832d52954 | 8 | |
| AdamGreen | 0:457832d52954 | 9 | Unless required by applicable law or agreed to in writing, software |
| AdamGreen | 0:457832d52954 | 10 | distributed under the License is distributed on an "AS IS" BASIS, |
| AdamGreen | 0:457832d52954 | 11 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| AdamGreen | 0:457832d52954 | 12 | See the License for the specific language governing permissions and |
| AdamGreen | 0:457832d52954 | 13 | limitations under the License. |
| AdamGreen | 0:457832d52954 | 14 | */ |
| AdamGreen | 0:457832d52954 | 15 | /* Implementation of class to interface for anemometer sensor with Sparkfun Weather Meters: |
| AdamGreen | 0:457832d52954 | 16 | http://www.sparkfun.com/products/8942 |
| AdamGreen | 0:457832d52954 | 17 | */ |
| AdamGreen | 0:457832d52954 | 18 | #include <mbed.h> |
| AdamGreen | 0:457832d52954 | 19 | #include "Anemometer.h" |
| AdamGreen | 0:457832d52954 | 20 | |
| AdamGreen | 0:457832d52954 | 21 | |
| AdamGreen | 0:457832d52954 | 22 | #define REV_PER_SECOND_TO_KMPH 2.4f |
| AdamGreen | 0:457832d52954 | 23 | |
| AdamGreen | 0:457832d52954 | 24 | |
| AdamGreen | 0:457832d52954 | 25 | CAnemometer::CAnemometer(PinName AnemometerPin, unsigned int IgnoreTimeForDebounceInMicroSeconds) |
| AdamGreen | 0:457832d52954 | 26 | : CDebouncedFallingEdgeCounter(AnemometerPin, IgnoreTimeForDebounceInMicroSeconds) |
| AdamGreen | 0:457832d52954 | 27 | { |
| AdamGreen | 0:457832d52954 | 28 | m_CurrentWindSpeed = 0.0f; |
| AdamGreen | 0:457832d52954 | 29 | ResetMaximumWindSpeed(); |
| AdamGreen | 0:457832d52954 | 30 | m_OneSecondTicker.attach_us<CAnemometer>(this, &CAnemometer::OneSecondTickerISR, 1000000); |
| AdamGreen | 0:457832d52954 | 31 | } |
| AdamGreen | 0:457832d52954 | 32 | |
| AdamGreen | 0:457832d52954 | 33 | |
| AdamGreen | 0:457832d52954 | 34 | void CAnemometer::ResetMaximumWindSpeed() |
| AdamGreen | 0:457832d52954 | 35 | { |
| AdamGreen | 0:457832d52954 | 36 | m_MaximumWindSpeed = m_CurrentWindSpeed; |
| AdamGreen | 0:457832d52954 | 37 | } |
| AdamGreen | 0:457832d52954 | 38 | |
| AdamGreen | 0:457832d52954 | 39 | |
| AdamGreen | 0:457832d52954 | 40 | void CAnemometer::OneSecondTickerISR() |
| AdamGreen | 0:457832d52954 | 41 | { |
| AdamGreen | 0:457832d52954 | 42 | unsigned int GetCurrentCount = GetCountAndZero(); |
| AdamGreen | 0:457832d52954 | 43 | |
| AdamGreen | 0:457832d52954 | 44 | m_CurrentWindSpeed = (float)GetCurrentCount * REV_PER_SECOND_TO_KMPH; |
| AdamGreen | 0:457832d52954 | 45 | if (m_CurrentWindSpeed > m_MaximumWindSpeed) |
| AdamGreen | 0:457832d52954 | 46 | { |
| AdamGreen | 0:457832d52954 | 47 | m_MaximumWindSpeed = m_CurrentWindSpeed; |
| AdamGreen | 0:457832d52954 | 48 | } |
| AdamGreen | 0:457832d52954 | 49 | } |
| AdamGreen | 0:457832d52954 | 50 | |
| AdamGreen | 0:457832d52954 | 51 | float CAnemometer::GetCurrentWindSpeed() |
| AdamGreen | 0:457832d52954 | 52 | { |
| AdamGreen | 0:457832d52954 | 53 | return m_CurrentWindSpeed; |
| AdamGreen | 0:457832d52954 | 54 | } |
| AdamGreen | 0:457832d52954 | 55 | |
| AdamGreen | 0:457832d52954 | 56 | |
| AdamGreen | 0:457832d52954 | 57 | float CAnemometer::GetMaximumWindSpeed() |
| AdamGreen | 0:457832d52954 | 58 | { |
| AdamGreen | 0:457832d52954 | 59 | return m_MaximumWindSpeed; |
| AdamGreen | 0:457832d52954 | 60 | } |