Based on https://github.com/adafruit/Adafruit-Raspberry-Pi-Python-Code/blob/master/Adafruit_CharLCD/Adafruit_CharLCD.py and http://lcd-linux.sourceforge.net/pdfdocs/hd44780.pdf and http://www.quinapalus.com/hd44780udg.html and http://robo.fe.uni-lj.si/~kamnikr/sola/urac/vaja3_display/How%20to%20control%20HD44780%20display.pdf and http://web.stanford.edu/class/ee281/handouts/lcd_tutorial.pdf and http://www.systronix.com/access/Systronix_20x4_lcd_brief_data.pdf
Inheritance: IDisposable
        public LcdConnection(IGpioConnectionDriver driver)
        {
            log.Debug(m => m("Init LCD connection"));

            var lcdSettings = new Hd44780LcdConnectionSettings
            {
                ScreenWidth = Columns,
                ScreenHeight = Rows,
                //Encoding = Encoding.ASCII
            };

            var dataPins = new[]
                {
                    ConnectorPin.P1Pin31,
                    ConnectorPin.P1Pin33,
                    ConnectorPin.P1Pin35,
                    ConnectorPin.P1Pin37
                }
                .Select(p => (IOutputBinaryPin)driver.Out(p))
                .ToArray();

            var lcdPins = new Hd44780Pins(
                driver.Out(ConnectorPin.P1Pin40),
                driver.Out(ConnectorPin.P1Pin38),
                dataPins);

            _lcdConnection = new Hd44780LcdConnection(lcdSettings, lcdPins);

            // init additonal characters
            _lcdConnection.SetCustomCharacter(0x0, new byte[] { 0x8, 0xc, 0xe, 0xf, 0xe, 0xc, 0x8 });       // play
            _lcdConnection.SetCustomCharacter(0x1, new byte[] { 0x0, 0x1b, 0x1b, 0x1b, 0x1b, 0x1b, 0x0 });  // pause
            _lcdConnection.SetCustomCharacter(0x2, new byte[] { 0x0, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x0 });  // stop

        }
Example #2
0
        private static void DisplayCharMap(Hd44780LcdConnection connection)
        {
            var idx = 0;
            foreach (var group in Hd44780A00Encoding.SupportedCharacters.GroupBy(c => (idx++/40)))
            {
                var s1 = new string(@group.Take(20).ToArray());
                var s2 = new string(@group.Skip(20).Take(20).ToArray());

                connection.Clear();

                connection.WriteLine(s1);
                connection.WriteLine(s2);

                Thread.Sleep(2000);
            }
        }
Example #3
0
        public RaspSharpView()
        {
            const ConnectorPin registerSelectPin = ConnectorPin.P1Pin22;
            const ConnectorPin clockPin = ConnectorPin.P1Pin18;
            var dataPins = new[]
            {
                ConnectorPin.P1Pin16,
                ConnectorPin.P1Pin15,
                ConnectorPin.P1Pin13,
                ConnectorPin.P1Pin11
            };

            var driver = GpioConnectionSettings.DefaultDriver;

            var pins = new Hd44780Pins(
                driver.Out(registerSelectPin),
                driver.Out(clockPin),
                dataPins.Select(p => (IOutputBinaryPin) driver.Out(p)));

            var settings = new Hd44780LcdConnectionSettings();

            _lcd = new Hd44780LcdConnection(settings, pins);
        }
Example #4
0
        static void Main(string[] args)
        {
            Console.WriteLine("HD-44780 Sample: Display IP configuration on LCD screen");

            var settings = new Hd44780LcdConnectionSettings
            {
                ScreenWidth = 20,
                ScreenHeight = 2,
            };

            using (var configuration = ConfigurationLoader.FromArguments(args))
            using (var connection = new Hd44780LcdConnection(settings, configuration.Pins))
            {
                connection.SetCustomCharacter(1, new byte[] {0x0, 0x0, 0x04, 0xe, 0x1f, 0x0, 0x0});
                connection.SetCustomCharacter(2, new byte[] {0x0, 0x0, 0x1f, 0xe, 0x04, 0x0, 0x0});

                if (args.Contains("viewMap", StringComparer.InvariantCultureIgnoreCase))
                {
                    connection.Clear();
                    DisplayCharMap(connection);
                }

                connection.Clear();
                connection.WriteLine("R# IP Config");
                connection.WriteLine(Environment.OSVersion);

                Thread.Sleep(TimeSpan.FromSeconds(2));

                var delay = 0m;
                while (true)
                {
                    foreach (var t in NetworkInterface.GetAllNetworkInterfaces()
                        .Where(i => i.NetworkInterfaceType != NetworkInterfaceType.Loopback)
                        .SelectMany(i => new[]
                                             {
                                                 string.Format("{0}: {1}", i.Name, i.OperationalStatus)
                                                 + Environment.NewLine
                                                 + string.Format("\u0002{0} \u0001{1}", FormatByteCount(i.GetIPv4Statistics().BytesReceived), FormatByteCount(i.GetIPv4Statistics().BytesSent)),

                                                 "IP  " + (i.GetIPProperties().UnicastAddresses.Select(a => a.Address.ToString()).FirstOrDefault() ?? "(unassigned)")
                                                 + Environment.NewLine
                                                 + "MAC " + i.GetPhysicalAddress().ToString()
                                             }))
                    {
                        connection.Clear();
                        connection.Write(t, delay);

                        for (var i = 0; i < 20; i++)
                        {
                            if (Console.KeyAvailable)
                            {
                                var c = Console.ReadKey(true).Key;

                                switch (c)
                                {
                                    case ConsoleKey.F5:
                                        connection.Clear();
                                        break;

                                    case ConsoleKey.F6:
                                        connection.CursorBlinking = !connection.CursorBlinking;
                                        break;

                                    case ConsoleKey.F7:
                                        connection.CursorEnabled = !connection.CursorEnabled;
                                        break;

                                    case ConsoleKey.F8:
                                        connection.DisplayEnabled = !connection.DisplayEnabled;
                                        break;

                                    case ConsoleKey.F9:
                                        connection.Move(-1);
                                        break;

                                    case ConsoleKey.F10:
                                        connection.Move(1);
                                        break;

                                    case ConsoleKey.F11:
                                        delay = 50.0m - delay;
                                        break;

                                    default:
                                        connection.BacklightEnabled = false;
                                        return;
                                }
                            }

                            Thread.Sleep(TimeSpan.FromSeconds(2d /20));
                        }
                    }
                }
            }
        }
Example #5
0
        static void Main(string[] args)
        {
            var settings = new Hd44780LcdConnectionSettings
                               {
                                   ScreenWidth = 20,
                                   ScreenHeight = 2,
                               };

            var registerSelectPin = ConnectorPin.P1Pin22.ToProcessor();
            var clockPin = ConnectorPin.P1Pin18.ToProcessor();
            var dataPins = (IEnumerable<ProcessorPin>)new[]
                               {
                                   ConnectorPin.P1Pin16.ToProcessor(),
                                   ConnectorPin.P1Pin15.ToProcessor(),
                                   ConnectorPin.P1Pin13.ToProcessor(),
                                   ConnectorPin.P1Pin11.ToProcessor()
                               };

            using (var connection = new Hd44780LcdConnection(
                settings,
                registerSelectPin,
                clockPin,
                dataPins))
            {
                connection.SetCustomCharacter(1, new byte[] {0x0, 0x0, 0x04, 0xe, 0x1f, 0x0, 0x0});
                connection.SetCustomCharacter(2, new byte[] {0x0, 0x0, 0x1f, 0xe, 0x04, 0x0, 0x0});

                connection.Clear();

                connection.WriteLine("R# IP Config");
                connection.WriteLine(Environment.OSVersion);
                Thread.Sleep(2000);

                // DisplayCharMap(connection);
                var delay = 0m;

                while (true)
                {
                    foreach (var t in NetworkInterface.GetAllNetworkInterfaces()
                        .Where(i => i.NetworkInterfaceType != NetworkInterfaceType.Loopback)
                        .SelectMany(i => new[]
                                             {
                                                 string.Format("{0}: {1}", i.Name, i.OperationalStatus)
                                                 + Environment.NewLine
                                                 + (i.GetIPProperties().UnicastAddresses.Select(a => a.Address.ToString()).FirstOrDefault() ?? "(unassigned)"),

                                                 i.GetPhysicalAddress().ToString()
                                                 + Environment.NewLine
                                                 + string.Format("\u0001{0} \u0002{1}", FormatByteCount(i.GetIPv4Statistics().BytesReceived), FormatByteCount(i.GetIPv4Statistics().BytesSent))
                                             }))
                    {
                        connection.Clear();
                        connection.Write(t, delay);

                        for (var i = 0; i < 20; i++)
                        {
                            if (Console.KeyAvailable)
                            {
                                var c = Console.ReadKey(true).Key;

                                switch (c)
                                {
                                    case ConsoleKey.F5:
                                        connection.Clear();
                                        break;

                                    case ConsoleKey.F6:
                                        connection.CursorBlinking = !connection.CursorBlinking;
                                        break;

                                    case ConsoleKey.F7:
                                        connection.CursorEnabled = !connection.CursorEnabled;
                                        break;

                                    case ConsoleKey.F8:
                                        connection.DisplayEnabled = !connection.DisplayEnabled;
                                        break;

                                    case ConsoleKey.F9:
                                        connection.Move(-1);
                                        break;

                                    case ConsoleKey.F10:
                                        connection.Move(1);
                                        break;

                                    case ConsoleKey.F11:
                                        delay = 50.0m - delay;
                                        break;

                                    default:
                                        return;
                                }
                            }

                            Thread.Sleep(100);
                        }
                    }
                }
            }
        }