Seeed Grove Temperature sensor component library
Dependents: Hello-grove-temperature-sensor Wio_3G_HTTP-POST-example Wio_3G_example sgam-lib ... more
Grove_temperature.cpp
- Committer:
- MACRUM
- Date:
- 2018-08-06
- Revision:
- 0:d4056a86ef8c
- Child:
- 1:aee37a51ccbb
File content as of revision 0:d4056a86ef8c:
/** ****************************************************************************** * @file Grove_temperature.cpp * @author Toyomasa Watarai * @version V1.0.0 * @date 6 Aug 2018 * @brief Seeed grove temperature sensor class implementation ****************************************************************************** * @attention * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "Grove_temperature.h" Grove_temperature::Grove_temperature(PinName ain) : _ain(ain) { } Grove_temperature::~Grove_temperature() { } float Grove_temperature::getTemperature() { const int B = 4275; // B value of the thermistor const int R0 = 100000; // R0 = 100k float R = 1.0f/_ain.read() - 1.0f; R = R0*R; float temperature = 1.0/(log(R/R0)/B+1/298.15)-273.15; // convert to temperature via datasheet return temperature; }