/*
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Arduino.h - Main include file for the Arduino SDK
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Copyright (c) 2005-2013 Arduino Team. All right reserved.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef MAIN_ESP32_HAL_TOUCH_H_
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#define MAIN_ESP32_HAL_TOUCH_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "esp32-hal.h"
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/*
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* Set cycles that measurement operation takes
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* The result from touchRead, threshold and detection
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* accuracy depend on these values. Defaults are
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* 0x1000 for measure and 0x1000 for sleep.
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* With default values touchRead takes 0.5ms
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* */
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void touchSetCycles(uint16_t measure, uint16_t sleep);
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/*
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* Read touch pad (values close to 0 mean touch detected)
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* You can use this method to chose a good threshold value
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* to use as value for touchAttachInterrupt
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* */
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uint16_t touchRead(uint8_t pin);
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/*
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* Set function to be called if touch pad value falls
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* below the given threshold. Use touchRead to determine
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* a proper threshold between touched and untouched state
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* */
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void touchAttachInterrupt(uint8_t pin, void (*userFunc)(void), uint16_t threshold);
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#ifdef __cplusplus
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}
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#endif
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#endif /* MAIN_ESP32_HAL_TOUCH_H_ */
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