reflow-oven-control-sw/stm-firmware/include/reflow-controller/temp-converter.h

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/* Reflow Oven Controller
*
* Copyright (C) 2020 Mario Hüttel <mario.huettel@gmx.net>
*
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* This file is part of the Reflow Oven Controller Project.
*
* The reflow oven controller is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* GDSII-Converter is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
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* along with the reflow oven controller project.
* If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __TEMP_CONVERTER_H__
#define __TEMP_CONVERTER_H__
/**
* @brief Convert PT1000 resistance to temperature in degrees celsius
* @param resistance PT1000 resistance value
* @param[out] temp_out Temperature output
* @return 0 if ok, -1 if value is below conversion range, 1 if value is above conversion range,-1000 in case of pointer error
*/
int temp_converter_convert_resistance_to_temp(float resistance, float *temp_out);
#endif /* __TEMP_CONVERTER_H__ */