#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <qserialport.h>
#include <qserialportinfo.h>
#include <stdio.h>
QSerialPort *serial;
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
ui->lcd_temp->setPalette(Qt::red);
serial = new QSerialPort(this);
connect(ui->rescan_Button, SIGNAL(clicked()), this, SLOT(serial_rescan()));
connect(ui->connect_button, SIGNAL(clicked()), this, SLOT (serial_connect()));
connect(ui->slider1, SIGNAL(valueChanged(int)), this, SLOT(widget_changed()));
connect(ui->slider2, SIGNAL(valueChanged(int)), this, SLOT(widget_changed()));
connect(ui->dial, SIGNAL(valueChanged(int)), this, SLOT(widget_changed()));
connect(serial, SIGNAL(readyRead()), this, SLOT(serial_received()));
serial_rescan();
}
MainWindow::~MainWindow()
{
delete ui;
serial->close();
}
void MainWindow::serial_connect()
{
serial->setPortName(ui->port_box->currentText());
serial->setBaudRate(QSerialPort::Baud115200);
serial->setDataBits(QSerialPort::Data8);
serial->setParity(QSerialPort::NoParity);
serial->setStopBits(QSerialPort::OneStop);
serial->setFlowControl(QSerialPort::NoFlowControl);
// serial->write("Hello World!\n");
if(!serial->open(QIODevice::ReadWrite)){
qDebug() << "Serial port open error";
}
}
void MainWindow::serial_rescan()
{
ui->port_box->clear();
foreach (const QSerialPortInfo &serialPortInfo, QSerialPortInfo::availablePorts()){
ui->port_box->addItem(serialPortInfo.portName());
}
}
void MainWindow::widget_changed()
{
QString buffer;
buffer.sprintf("A%03i;%03i;%03i\n",ui->slider1->value(),ui->slider2->value(),ui->dial->value());
qDebug() << buffer;
serial->write( buffer.toStdString().c_str(), buffer.size());
serial->QSerialPort::waitForBytesWritten(-1);
ui->lcd_led1->display(ui->slider1->value());
ui->lcd_led2->display(ui->slider2->value());
ui->lcd_pwm->display(ui->dial->value());
}
void MainWindow::send_test()
{
serial->write("test!\n");
}
void MainWindow::serial_received()
{
// usleep(10000);
// QString received = serial->readAll();
QString received;
while (serial->canReadLine()){
received = serial->readLine(); //reads in data line by line, separated by \n or \r characters
}
QStringList splitted = received.split(";");
if (splitted.value(0) == "A"){
ui->lcd_temp->display(splitted.value(1));
}
}
Serialport.zip
