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DualTouch.h
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DualTouch.h
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/*
* DualTouch.h -- Simple library to handle 2 touch buttons
* Copyright (C) 2020 Lauri Peltonen
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* This program 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
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef __DUALTOUCH_H__
#define __DUALTOUCH_H__
class DualTouch
{
public:
DualTouch(uint8_t leftPin, uint8_t rightPin);
void setThreshold(float threshold);
void setInvert(bool invert);
void setFilterGains(float lowpassGain, float threholdGain);
void setReadTimes(uint8_t times);
void setReadInterval(uint16_t interval);
bool leftTouched();
bool rightTouched();
void update(void);
private:
uint8_t pin_1;
uint8_t pin_2;
uint8_t readTimes;
uint16_t readInterval;
bool invert;
uint16_t value1;
uint16_t value2;
// Threshold for triggering touch
float threshold;
// Low pass filtered values
float gain;
float invgain;
float value1_f;
float value2_f;
// Threshold values
float gain_th;
float invgain_th;
float threshold_1;
float threshold_2;
// States
bool state_1;
bool state_2;
void readSensors(void);
void updateStatus(void);
void resetStatus(void);
};
#endif // __DUALTOUCH_H__