Key.readEvent()

Used to detect the [long press] and [short press] actions of digital switches, analog switches and virtual switches. Digital switches: Key. readEvent(time) Description Identify digital sensors’ [long press] and [short press] actions. Digital sensors must be used together with DigitalKey() structure. Parameter time: duration of long press, the default is 1000ms. Return uint8_t type. Short press: SHORT_PRESS, long press: LONG_PRESS Analog switch: Key. readEvent(MIN,MAX,time) Description Identify analog sensors’ [long press] and [short press] within corresponding sections. Analog switches must be used together with the structure AnalogKey(). Parameters MIN: the minimum of analog section; MAX: the maximum of analog section; time: duration of long press, and the default is 1000ms. Return uint8_t type. Short press: SHORT_PRESS, long press: LONG_PRESS Virtual switch: Key. readEvent(bool,time) Description Identify the [long press] and [short press] actions of analog switches’ corresponding states. Virtual switches must be used together with structure VirtualKey(). Parameters bool: true and false values of virtual switches; time: the duration of long press, and the default is 1000ms. Return uint8_t type. Short press: SHORT_PRESS, long press: LONG_PRESS Sample Identify analog sensors’ [long press] and [short press] actions within corresponding sections. #include <Microduino_Key.h> AnalogKey keyAnalog(A0); void setup() { Serial.begin(9600); keyAnalog.begin(INPUT); } void loop() { switch (keyAnalog.readEvent(0, 50)) { //(analog minimum, analog maximum) case SHORT_PRESS: Serial.println("KEY (analog) SHORT_PRESS"); //Short press break; case LONG_PRESS: Serial.println("KEY (analog) LONG_PRESS"); //Long press break; } delay(50); } Identify digital sensors’ [long press] and [short press] actions within corresponding sections. #include <Microduino_Key.h> DigitalKey keyDigital(A0); void setup() { Serial.begin(9600); keyDigital.begin(INPUT_PULLUP); } void loop() { switch (keyDigital.readEvent()) { case SHORT_PRESS: Serial.println("KEY (digital) SHORT_PRESS"); //Short press break; case LONG_PRESS: Serial.println("KEY (digital) LONG_PRESS"); //Long press break; } delay(50); } Identify virtual sensors’ [long press] and [short press] actions of corresponding states. #include <Microduino_Key.h> VirtualKey keyVirtual; void setup() { Serial.begin(9600); keyVirtual.begin(); pinMode(A0, INPUT_PULLUP); } void loop() { bool val = !digitalRead(A0); //val any bool variables switch (keyVirtual.readEvent(val,1500)) { //(a variable, the time of long press) the unit of the time is ms, and the default is 1000 case SHORT_PRESS: Serial.println("KEY (Virtual) SHORT_PRESS"); //Short press break; case LONG_PRESS: Serial.println("KEY (Virtual) LONG_PRESS"); //Long press break; } delay(50); } Others AnalogKey() DigitalKey() VirtualKey() begin() readVal()

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