Merge pull request #2 from ColoradoStateFSAE/jonathan-work

Added flat shift

.gitignore

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+.pio
+.vscode

platformio.ini

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+; PlatformIO Project Configuration File
+;
+;   Build options: build flags, source filter
+;   Upload options: custom upload port, speed and extra flags
+;   Library options: dependencies, extra library storages
+;   Advanced options: extra scripting
+;
+; Please visit documentation for the other options and examples
+; https://docs.platformio.org/page/projectconf.html
+
+[env:teensy41]
+platform = teensy
+board = teensy41
+framework = arduino
+lib_deps = 
+	luni64/TeensyTimerTool@^1.4.1
+	adafruit/Adafruit SSD1306@^2.5.7

src/Controls.cpp

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+#include "Controls.h"
+
+Controls::Controls(int pin) {
+  buttonPin = pin;
+  pinMode(buttonPin, INPUT_PULLUP);
+}
+
+// button_pressed takes a button and returns true if it was pressed
+void Controls::update() {
+  bool pressed = false;
+  bool released = false;
+
+  int state = digitalRead(buttonPin);
+
+  if (state != lastButtonState) {
+    lastDebounceTime = millis();
+  }
+
+  if ((millis() - lastDebounceTime) >= DEBOUNCE_TIME) {
+    if (state != buttonState) {
+      buttonState = state;
+      if (buttonState == LOW) {
+        pressed = true;
+      }
+    }
+  }
+
+  lastButtonState = state;
+
+  buttonPressed = pressed;
+  buttonReleased = released;
+}
+
+bool Controls::pressed() {
+  return buttonPressed;
+}

src/Controls.h

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+#ifndef CONTROLS_H
+#define CONTROLS_H
+
+#include <Arduino.h>
+#include "Transmission.h"
+
+enum {
+  NEUTRAL = -1,
+  UP = 0,
+  DOWN = 1
+};
+
+class Controls {
+  public:
+    Controls() = delete;
+    Controls(int pin);
+    void update();
+    bool pressed();
+
+  private:
+    const unsigned int DEBOUNCE_TIME = 5; // Debounce delay in milliseconds
+
+    int buttonPin;
+    int buttonState = HIGH;
+    int lastButtonState = HIGH;
+    unsigned long lastDebounceTime = 0;
+
+    bool buttonPressed = false;
+    bool buttonReleased = false;
+    bool buttonHeld = false;
+};
+
+#endif