- This topic has 3 replies, 2 voices, and was last updated 1 year, 4 months ago by
Renzo Mischianti.
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6 January 2024 at 19:36 #29018
Hello,
I have a Wemos-D1 device connected to a PCF8574 & XREEF Library and like to use encoder with multiclick like singlePress, DoublePress, LongPress, etc. I am using now P0, P1, P2 and the INT line to SDA, SCL & D3 of my Wemos device. Is there a simple way to achieve this functionality, I am using the latest version of the library I believe it was 2.3.6thanks in advance..
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7 January 2024 at 11:28 #29019
Hi MAWMN,
not inside the library, but I think you can check the millis(), and if you already have a click in a specified interval, you can abort the previous action and activate the new one.
But pay attention, if you already clicked one and after that interval, no other action was activated, you must execute the click function.
Bye Renzo -
8 January 2024 at 18:30 #29086
Hello,
just finnished my demo project, see the code below, perhaps also nice to use as an example :thanks and bye..
/* * PCF8574 GPIO Port Expander * https://www.mischianti.org/2020/03/13/pcf8574-i2c-digital-i-o-expander-rotary-encoder-part-2/ * * Connection Overview * PCF8574 —- WeMos-D1 * A0 —- GND * A1 —- GND * A2 —- GND * VSS —- GND * VDD —- 5V/3.3V * SDA —- D1(PullUp) // GEEL * SCL —- D2(PullUp) // GROEN * INT —- INT(PullUp) // WIT * * PCF8574 —- Rot.Encoder * P0 —- ENCODER PIN A * P1 —- ENCODER PIN B * P2 —- ENCODER BUTTON * */ #include "Arduino.h" #include "PCF8574.h" // * Wemos-D1 defines #define sdaPin D1 // This is the default Pin for Wemos-D1 #define sclPin D2 // This is the default Pin for Wemos-D1 // #define sdaPin D5 // ! NOT the default Pin - NOT WORKING @ Wemos-D1 ??? // #define sclPin D6 // ! NOT the default Pin - NOT WORKING @ Wemos-D1 ??? #define INTERRUPTED_PIN D3 // Wemos-D1 pin (D3 = Interrupt pin for Encoder) // * RotaryEncoder defines (Connected to PCF8574) #define encoderPinA P0 #define encoderPinB P1 #define switchPin P2 // Pre formatted Header for Interrupt (See Initialisation of updateEncoder Interrupt Below), // necessary here because of the Interrupt Initialisation in the next Line void IRAM_ATTR updateEncoder(); // ! *** IRAM_ATTR because this is the ISR !!! // Initialize PCF-library Interrupt PCF8574 pcf8574(0x38, INTERRUPTED_PIN, updateEncoder); // for Default I2C Pins // PCF8574 pcf8574(0x38, sdaPin, sclPin, INTERRUPTED_PIN, updateEncoder); // ! NOT the default Pins - NOT WORKING @ Wemos-D1 ??? // Initialize Rot.Encoder Global variables volatile long encoderValue = 0; uint8_t encoderButtonVal = HIGH; bool changed = false; /*****************************************/ /***** MULTICLICK_DEBUG_PRINT MACRO *****/ /*****************************************/ // ? Uncomment to enable printing out nice debug messages. // ? #define MULTICLICK_DEBUG #define MULTICLICK_DEBUG // Define where debug output will be printed. #define MULTICLICK_PRINTER Serial // Setup DEBUG printing MACRO #ifdef MULTICLICK_DEBUG #define MULTICLICK_DEBUG_PRINT(...) { MULTICLICK_PRINTER.print(__VA_ARGS__); } #define MULTICLICK_DEBUG_PRINTLN(...) { MULTICLICK_PRINTER.println(__VA_ARGS__); } #else #define MULTICLICK_DEBUG_PRINT(...) {} #define MULTICLICK_DEBUG_PRINTLN(...) {} #endif //**********************************************************************/ //! *** Additions tbv MULTI-CLICK: One Button with Multiple Events !!! */ //**********************************************************************/ #define maxMulticlickGap 1000 // Time where in between the multiclick must remain #define maxLongPress 2000 // Max time in ms. to wait berfore clearing the firstPressTS bool btnPressed = false; bool btnReleased = true; int lastBtnState = 0; uint32 firstPressTS = 0; // Timestamp of the first btnPress moment int clicksCnt = -1; // Count the number of Clicks before the firstPressTS Reset occurs (-1 = OFF) bool clickHandled = false; //**********************************************************************/ //******************************************************************/ //! ***** !!! ISR Functie tbv Encoder ButtonTurn & ButtonPress !!! */ //******************************************************************/ uint8_t encoderPinALast = LOW; uint8_t valPrecEncoderButton = LOW; void updateEncoder() { // ! *** IRAM_ATTR NOT necessary here for ISR !!! // Encoder management uint8_t n = pcf8574.digitalRead(encoderPinA); if ((encoderPinALast == LOW) && (n == HIGH)) { if (pcf8574.digitalRead(encoderPinB) == LOW) { // * ClockWise encoderValue++; // ! if we need to change counting for CW & CCW, we need to do it here changed = true; // Changed the value of the encoder } else { // * Counter ClockWise encoderValue--; // ! if we need to change counting for CW & CCW, we need to do it here changed = true; // Changed the value of the encoder } } encoderPinALast = n; // Button management encoderButtonVal = pcf8574.digitalRead(switchPin); if (encoderButtonVal != valPrecEncoderButton) { // Changed the value of button changed = true; valPrecEncoderButton = encoderButtonVal; } } //**********************************************************************/ //! *** Additions tbv MULTI-CLICK: One Button with Multiple Events !!! */ //**********************************************************************/ void checkButton(bool buttonVal) { if (buttonVal == 0) { btnPressed = true; btnReleased = false; } else { btnPressed = false; btnReleased = true; } if (btnPressed == true) { MULTICLICK_DEBUG_PRINTLN("btnPressed.."); if (firstPressTS == 0) { firstPressTS = millis(); MULTICLICK_DEBUG_PRINT("firstPressTS set to - "); MULTICLICK_DEBUG_PRINTLN(firstPressTS); clicksCnt = 0; } } else if (btnReleased == true) { MULTICLICK_DEBUG_PRINTLN("btnReleased.."); } if (lastBtnState != buttonVal) { // There is a change in State if (btnReleased == true) { // Take action when the button is being Released if ((millis() - firstPressTS) < maxMulticlickGap) { clicksCnt += 1; } } } lastBtnState = buttonVal; } // MultiClick Events to trigger void singleClickEvent() { MULTICLICK_DEBUG_PRINTLN("Perform singleClickEvent"); clickHandled = true; } void doubleClickEvent() { MULTICLICK_DEBUG_PRINTLN("Perform doubleClickEvent"); clickHandled = true; } void tripleClickEvent() { MULTICLICK_DEBUG_PRINTLN("Perform tripleClickEvent"); clickHandled = true; } void longPressEvent() { MULTICLICK_DEBUG_PRINTLN("Perform longPressEvent"); clickHandled = true; } //**********************************************************************/ //******************************************************/ //***** Application Setup.. *****/ //******************************************************/ void setup() { /**************************/ /***** StartUp Serial *****/ /**************************/ Serial.begin(115200); Serial.println(); Serial.flush(); delay(1000); /*****************************************************/ /***** I2C Setup, Encoder Setup *****/ /*****************************************************/ // pcf8574.begin(); // ! ???? DO we NEED This, works also without defining for using the default I2C Pins ???? // Setup PCF8574 pins pcf8574.pinMode(encoderPinA, INPUT_PULLUP); pcf8574.pinMode(encoderPinB, INPUT_PULLUP); // Setup Encoder Switch button pcf8574.pinMode(switchPin, INPUT_PULLUP); // Set low latency with this method or uncomment LOW_LATENCY define in the library // Needed for the Encoder pcf8574.setLatency(0); // Start the PCF8574 library MULTICLICK_DEBUG_PRINT("Init pcf8574…"); if (pcf8574.begin()) { // Board/Chip is Acknowledging the I2C Commands MULTICLICK_DEBUG_PRINTLN("OK"); } else { // Board/Chip is NOT Acknowledging the I2C Commands MULTICLICK_DEBUG_PRINTLN("NOT OK"); } } //******************************************************/ //***** Application MAIN Loop.. *****/ //******************************************************/ void loop() { if (changed) { MULTICLICK_DEBUG_PRINT("ENCODER -> "); MULTICLICK_DEBUG_PRINT(encoderValue); MULTICLICK_DEBUG_PRINT(" - BUTTON -> "); MULTICLICK_DEBUG_PRINT(encoderButtonVal ? "HIGH -> " : "LOW -> "); // Get button event and act accordingly checkButton(encoderButtonVal); changed = false; } // handling of the checkButton() function - firstPressTS is running.. if (firstPressTS != 0) { // Perform ClickEvents based on maxMulticlickGap if ((millis() - maxMulticlickGap) >= firstPressTS) { if (clicksCnt == 1) singleClickEvent(); if (clicksCnt == 2) doubleClickEvent(); if (clicksCnt == 3) tripleClickEvent(); if (clicksCnt <= 3) { clicksCnt = 0; } } if ((millis() - maxLongPress) >= firstPressTS) { // MULTICLICK_DEBUG_PRINT("numClicks : "); // MULTICLICK_DEBUG_PRINTLN(clicksCnt); if (clicksCnt >= 4) { // number of clicks out of range MULTICLICK_DEBUG_PRINTLN("numClicks Out of Range.."); } else if ((clicksCnt == 0) && (clickHandled == false)) longPressEvent(); // Clear firstPressTS to stopped.. MULTICLICK_DEBUG_PRINT("firstPressTS cleared @ "); MULTICLICK_DEBUG_PRINTLN(millis()); firstPressTS = 0; clicksCnt = 0; clickHandled = false; } } }
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This reply was modified 1 year, 4 months ago by
Renzo Mischianti. Reason: Format code
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This reply was modified 1 year, 4 months ago by
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8 January 2024 at 21:01 #29090
Thanks a lot. Your work is precious.
Bye Renzo
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