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164 lines
3.0 KiB
164 lines
3.0 KiB
#include <Wire.h> |
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#include <Adafruit_GFX.h> |
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#include <Adafruit_SSD1306.h> |
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#include <Adafruit_FeatherOLED.h> |
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#define DEBUG 0 |
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#define BUTTON_HOLD_TIME 500 |
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#define BUTTON_PRESS_TIME 20 |
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#define UP_BUTTON 31 |
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#define ENTER_BUTTON 30 |
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#define DOWN_BUTTON 27 |
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Adafruit_FeatherOLED oled = Adafruit_FeatherOLED(); |
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static const unsigned char PROGMEM arrow[] = |
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{ B10000000, |
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B11000000, |
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B11100000, |
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B11000000, |
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B10000000}; |
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//oled.drawBitmap(0, 1, arrow, 8, 5, 1); |
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enum buttonStates { |
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OPEN, |
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CLOSED, |
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CHECK_PRESSED, |
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PRESSED, |
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HELD, |
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NUM_BUTTONSTATES |
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}; |
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enum screenStates { |
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PRESSURE, |
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SETTINGS, |
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NUM_SCREENSTATES |
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}; |
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enum buttonStates upButton = OPEN; |
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enum buttonStates enterButton = OPEN; |
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enum buttonStates downButton = OPEN; |
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int pressureSetPoint = 69; |
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void setup() |
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{ |
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Serial.begin(115200); |
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oled.init(); |
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pinMode(UP_BUTTON, INPUT_PULLUP); |
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pinMode(ENTER_BUTTON, INPUT); // Has external pullup |
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pinMode(DOWN_BUTTON, INPUT_PULLUP); |
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} |
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void loop() { |
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pollButtons(); |
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runUI(); |
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} |
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void runUI() { |
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static enum screenStates screenState = PRESSURE; |
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oled.clearDisplay(); |
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switch (screenState) { |
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case PRESSURE: |
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if (enterButton == HELD) screenState = SETTINGS; |
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if (upButton == PRESSED) { |
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pressureSetPoint++; |
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} else if (downButton == PRESSED) { |
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pressureSetPoint--; |
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} else if (upButton == HELD) { |
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pressureSetPoint++; |
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delay(75); |
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} else if (downButton == HELD) { |
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pressureSetPoint--; |
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delay(75); |
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} |
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oled.setCursor(0,0); |
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oled.setTextSize(3); |
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oled.print(pressureSetPoint); |
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oled.display(); |
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break; |
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} |
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} |
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void pollButtons() { |
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static unsigned long upButtonTime = 0; |
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static unsigned long enterButtonTime = 0; |
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static unsigned long downButtonTime = 0; |
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processButtonState(UP_BUTTON, upButton, upButtonTime); |
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processButtonState(ENTER_BUTTON, enterButton, enterButtonTime); |
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processButtonState(DOWN_BUTTON, downButton, downButtonTime); |
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if (DEBUG) { |
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if (upButton == PRESSED) { |
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Serial.println("up button pressed"); |
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} else if (upButton == HELD) { |
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Serial.println("up button held"); |
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} |
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if (enterButton == PRESSED) { |
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Serial.println("enter button pressed"); |
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} else if (enterButton == HELD) { |
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Serial.println("enter button held"); |
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} |
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if (downButton == PRESSED) { |
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Serial.println("down button pressed"); |
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} else if (downButton == HELD) { |
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Serial.println("down button held"); |
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} |
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} |
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} |
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void processButtonState(int buttonPin, buttonStates &buttonState, unsigned long &buttonTime) { |
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bool pinState = !digitalRead(buttonPin); |
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switch(buttonState) { |
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case OPEN: |
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if (pinState) { |
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buttonState = CLOSED; |
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buttonTime = millis(); |
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} |
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break; |
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case CLOSED: |
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if (millis() >= buttonTime + BUTTON_HOLD_TIME) { |
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buttonState = HELD; |
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} |
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if (pinState) { |
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; |
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} else { |
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buttonState = CHECK_PRESSED; |
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} |
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break; |
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case CHECK_PRESSED: |
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if (millis() >= buttonTime + BUTTON_PRESS_TIME) { |
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buttonState = PRESSED; |
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} else { |
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buttonState = OPEN; |
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} |
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break; |
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case PRESSED: |
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buttonState = OPEN; |
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break; |
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case HELD: |
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if (!pinState) { |
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buttonState = OPEN; |
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} |
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break; |
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default: |
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break; |
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} |
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}
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