204 lines
7.4 KiB
C++
204 lines
7.4 KiB
C++
/*********************************************************************************
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* MIT License
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*
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* Copyright (c) 2020-2023 Gregg E. Berman
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*
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* https://github.com/HomeSpan/HomeSpan
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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********************************************************************************/
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#pragma once
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#include <Arduino.h>
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#include <driver/timer.h>
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namespace Utils {
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char *readSerial(char *c, int max); // read serial port into 'c' until <newline>, but storing only first 'max' characters (the rest are discarded)
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String mask(char *c, int n); // simply utility that creates a String from 'c' with all except the first and last 'n' characters replaced by '*'
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}
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/////////////////////////////////////////////////
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// Creates a temporary buffer that is freed after
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// going out of scope
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template <class bufType>
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struct TempBuffer {
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bufType *buf;
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int nBytes;
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TempBuffer(size_t len){
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nBytes=len*sizeof(bufType);
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buf=(bufType *)heap_caps_malloc(nBytes,MALLOC_CAP_8BIT);
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if(buf==NULL){
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Serial.print("\n\n*** FATAL ERROR: Requested allocation of ");
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Serial.print(nBytes);
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Serial.print(" bytes failed. Program Halting.\n\n");
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while(1);
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}
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}
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~TempBuffer(){
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heap_caps_free(buf);
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}
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int len(){
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return(nBytes);
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}
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};
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////////////////////////////////
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// PushButton //
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////////////////////////////////
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#if SOC_TOUCH_VERSION_2
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typedef uint32_t touch_value_t;
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#else
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typedef uint16_t touch_value_t;
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#endif
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class PushButton{
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int status;
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int toggleStatus;
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boolean doubleCheck;
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uint32_t singleAlarm;
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uint32_t doubleAlarm;
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uint32_t longAlarm;
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static touch_value_t threshold;
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static const int calibCount=20;
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protected:
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int pressType;
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typedef boolean (*triggerType_t)(int pin);
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int pin;
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triggerType_t triggerType;
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public:
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enum {
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SINGLE=0, // applicable only for push button
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DOUBLE=1, // applicable only for push button
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LONG=2, // applicable only for push button
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CLOSED=3, // applicable only for toggle switch
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OPEN=4 // applicable only for toggle switch
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};
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static boolean TRIGGER_ON_LOW(int pin){return(!digitalRead(pin));}
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static boolean TRIGGER_ON_HIGH(int pin){return(digitalRead(pin));}
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#if SOC_TOUCH_SENSOR_NUM > 0
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#if SOC_TOUCH_VERSION_2
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static boolean TRIGGER_ON_TOUCH(int pin){return(touchRead(pin)>threshold);}
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#else
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static boolean TRIGGER_ON_TOUCH(int pin){return(touchRead(pin)<threshold);}
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#endif
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#endif
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PushButton(int pin, triggerType_t triggerType=TRIGGER_ON_LOW);
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// Creates a push-button/toggle-switch of specified type on specified pin
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//
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// pin: pin number to which the button is connected
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// triggerType: a function of of the form 'boolean f(int)' that is passed
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// the parameter *pin* and returns TRUE if the button associated
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// with *pin* is pressed/on, or FALSE if not. Can choose from 3 pre-specifed
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// triggerType_t functions (TRIGGER_ON_LOW, TRIGGER_ON_HIGH, and TRIGGER_ON_TOUCH),
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// or write your own custom handler
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void reset();
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// Resets state of PushButton. Should be called once before any loops that will
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// repeatedly check the button for a trigger() event.
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boolean triggered(uint16_t singleTime, uint16_t longTime, uint16_t doubleTime=0);
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// Returns true if button has been triggered by an press event based on the following parameters:
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// singleTime: the minimum time required for the button to be pressed to trigger a Single Press
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// doubleTime: the maximum time allowed between button presses to qualify as a Double Press
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// longTime: the minimum time required for the button to be pressed and held to trigger a Long Press
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// All times are in milliseconds (ms). Trigger Rules:
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// * If button is pressed and continuously held, a Long Press will be triggered every longTime ms until the
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// button is released.
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// * If button is pressed for more than singleTime ms but less than longTime ms and then released, a Single Press
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// will be triggered, UNLESS
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// * The button is pressed a second time within doubleTime ms AND held again for at least singleTime ms, in which case
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// a DoublePress will be triggered. No further events will occur until the button is released.
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// * If singleTime>longTime, only Long Press triggers can occur.
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// * If doubleTime=0, Double Presses cannot occur.
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// * Once triggered() returns true, if will subsequently return false until there is a new trigger event.
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boolean primed();
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// Returns true if button has been pressed and held for greater than singleTime, but has not yet been released.
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// After returning true, subsequent calls will always return false until the button has been released and reset.
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int type();
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// Returns the press type based on the whether triggered() or toggled() is called:
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// * For a push button, returns the last trigger event: 0=Single Press, 1=Double Press, 2=Long Press
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// * For a toggle switch, returns the current state of the switch: 4=ON, 5=OFF
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void wait();
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// Waits for button to be released. Use after Long Press if button release confirmation is desired
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boolean toggled(uint16_t toggleTime);
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// Returns true if switch has been toggled, where
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// toggleTime: the minimum time (in milliseconds) a switch needs to be ON to register a toggle event
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// Once toggled() returns true, if will subsequently return false until the switch is toggled again.
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int getPin(){return(pin);}
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// Returns pin number
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#if SOC_TOUCH_SENSOR_NUM > 0
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static void setTouchCycles(uint16_t measureTime, uint16_t sleepTime){touchSetCycles(measureTime,sleepTime);}
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// Sets the measure time and sleep time touch cycles , and lower threshold that triggers a touch - used only when triggerType=PushButton::TRIGGER_ON_TOUCH
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// measureTime: duration of measurement time of all touch sensors in number of clock cycles
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// sleepTime: duration of sleep time (between measurements) of all touch sensors number of clock cycles
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static void setTouchThreshold(touch_value_t thresh){threshold=thresh;}
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// Sets the threshold that triggers a touch - used only when triggerType=TRIGGER_ON_TOUCH
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// thresh: the read value of touch sensors, beyond which which sensors are considered touched (i.e. "pressed").
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// This is a class-level value applied to all touch sensor buttons.
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#endif
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};
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