Reference: Working PI Wiring for GPIO PIN 0

DriverInterface.pro

@@ -5,7 +5,7 @@ QT += widgets
 
 CONFIG += c++17
 
-# LIBS += -lwiringPi
+LIBS += -lwiringPi
 
 # You can make your code fail to compile if it uses deprecated APIs.
 # In order to do so, uncomment the following line.

main.cpp

@@ -1,14 +1,14 @@
 #include "headers/background.h"
 #include "mainwindow.h"
 
-// #include <wiringPi.h>
+#include <wiringPi.h>
 
 #include <QApplication>
 #include <QStyleFactory>
 
 int main(int argc, char *argv[])
 {
-  // wiringPiSetup();
+  wiringPiSetup();
   Background b;
   b.dark_theme();
   QApplication a(argc, argv);

mainwindow.cpp

@@ -3,6 +3,7 @@
 #include <QDebug>
 #include <QScreen>
 #include <QTimer>
+#include <wiringPi.h>
 
 MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow)
 {
@@ -119,6 +120,9 @@ void MainWindow::gather_info() {
 
   blink = !blink;
   seconds += 1;
+
+  pinMode(0, INPUT);
+  std::cout << "Current Pin 0 Output: " << digitalRead(0) << std::endl;
 }
 
 void MainWindow::on_parkingSignalON_clicked() { gear.switch_gears(PARK); }

sources/battery.cpp

@@ -4,6 +4,7 @@ Battery::Battery() : battery_val(100) {}
 
 void Battery::setup(QProgressBar *battery_ptr, QLabel *range_label_ptr, QLabel *low_battery_label_ptr, QLabel *battery_label_ptr, QLCDNumber *range_ptr, QLabel *distance_label_ptr, QFrame *battery_line_1_ptr, QFrame *battery_line_2_ptr, QFrame *battery_line_3_ptr, QFrame *battery_line_4_ptr, uint16_t height, uint16_t width)
 {
+
   battery = battery_ptr;
   range_label = range_label_ptr;
   low_battery_label = low_battery_label_ptr;