树莓派4B 串口通信
- 提前下载安装Glade图形编辑器
- 参考 树莓派4B安装netcore 环境部署、发布、执行操作
- 准备串口设备本文使用串口控制继电器设备 如图
1、发现串口
void GetSerialPort()
{
Console.WriteLine("发现串口:");
var names = SerialPort.GetPortNames();
int count = 1;
foreach (var item in names)
{
ports.Add(count.ToString(), item);
Console.WriteLine($"{count.ToString()}:{item}");
count++;
}
Console.WriteLine("输入要打开的串口编号:" + ports.Keys.Join(","));
string portName = ports["2"];
_SerialPort = new SerialPort(portName, 9600, Parity.None, 8, StopBits.One);
_SerialPort.Open();
}
2、发送协议
void SendCommand(string command)
{
Console.WriteLine(command);
var buf = command.ToHex();
if (_SerialPort != null && _SerialPort.IsOpen)
_SerialPort.Write(buf, 0, buf.Length);
}
3、Glade设计界面
<?xml version="1.0" encoding="UTF-8"?>
<interface>
<requires lib="gtk+" version="2.24"/>
<!-- interface-naming-policy project-wide -->
<object class="GtkWindow" id="MainWindow">
<property name="can_focus">False</property>
<property name="title" translatable="yes">继电器控制</property>
<property name="window_position">center</property>
<child>
<object class="GtkVBox" id="vbox1">
<property name="visible">True</property>
<property name="can_focus">False</property>
<child>
</child>
<child>
<object class="GtkHBox" id="hbox1">
<property name="visible">True</property>
<property name="can_focus">False</property>
<child>
<object class="GtkToggleButton" id="btnOne">
<property name="label" translatable="yes">继电器1</property>
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="receives_default">True</property>
<property name="tooltip_markup">1</property>
<signal name="toggled" handler="on_togglebutton1_toggled" swapped="no"/>
</object>
<packing>
<property name="expand">True</property>
<property name="fill">True</property>
<property name="position">0</property>
</packing>
</child>
<child>
<object class="GtkToggleButton" id="btnTwo">
<property name="label" translatable="yes">继电器2</property>
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="receives_default">True</property>
<property name="tooltip_markup">2</property>
<signal name="toggled" handler="on_togglebutton1_toggled" swapped="no"/>
</object>
<packing>
<property name="expand">True</property>
<property name="fill">True</property>
<property name="position">1</property>
</packing>
</child>
<child>
<object class="GtkToggleButton" id="btnThree">
<property name="label" translatable="yes">继电器3</property>
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="tooltip_markup">3</property>
<property name="receives_default">True</property>
<signal name="toggled" handler="on_togglebutton1_toggled" swapped="no"/>
</object>
<packing>
<property name="expand">True</property>
<property name="fill">True</property>
<property name="position">2</property>
</packing>
</child>
<child>
<object class="GtkToggleButton" id="btnFour">
<property name="label" translatable="yes">继电器4</property>
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="receives_default">True</property>
<property name="tooltip_markup">4</property>
<signal name="toggled" handler="on_togglebutton1_toggled" swapped="no"/>
</object>
<packing>
<property name="expand">True</property>
<property name="fill">True</property>
<property name="position">3</property>
</packing>
</child>
</object>
<packing>
<property name="expand">True</property>
<property name="fill">True</property>
<property name="position">1</property>
</packing>
</child>
<child>
<object class="GtkToggleButton" id="togglebutton1">
<property name="label" translatable="yes">全部打开</property>
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="receives_default">True</property>
<property name="tooltip_markup">0</property>
<signal name="toggled" handler="on_togglebutton1_toggled" swapped="no"/>
</object>
<packing>
<property name="expand">True</property>
<property name="fill">True</property>
<property name="position">2</property>
</packing>
</child>
</object>
</child>
</object>
</interface>
源码下载 code.rar