예제 #1
0
        public static void SampleEntryPoint()
        {
            Console.WriteLine("Starting...");
            // for PCF8574T i2c addresses can be between 0x27 and 0x20 depending on bridged solder jumpers
            // for PCF8574AT i2c addresses can be between 0x3f and 0x38 depending on bridged solder jumpers
            var i2cDevice = I2cDevice.Create(new I2cConnectionSettings(busId: 1, deviceAddress: 0x27));
            var driver    = new Pcf8574(i2cDevice);
            var lcd       = new Lcd1602(registerSelectPin: 0, enablePin: 2, dataPins: new int[] { 4, 5, 6, 7 }, backlightPin: 3, readWritePin: 1, controller: new GpioController(PinNumberingScheme.Logical, driver));

            using (lcd)
            {
                Console.WriteLine("Initialized");
                Console.ReadLine();

                TestPrompt("SetCursor", lcd, SetCursorTest);
                TestPrompt("Underline", lcd, l => l.UnderlineCursorVisible = true);
                lcd.UnderlineCursorVisible = false;
                TestPrompt("Walker", lcd, WalkerTest);
                CreateTensCharacters(lcd);
                TestPrompt("CharacterSet", lcd, CharacterSet);

                // Shifting
                TestPrompt("Autoshift", lcd, AutoShift);
                TestPrompt("DisplayLeft", lcd, l => ShiftDisplayTest(l, a => a.ShiftDisplayLeft()));
                TestPrompt("DisplayRight", lcd, l => ShiftDisplayTest(l, a => a.ShiftDisplayRight()));
                TestPrompt("CursorLeft", lcd, l => ShiftCursorTest(l, a => a.ShiftCursorLeft()));
                TestPrompt("CursorRight", lcd, l => ShiftCursorTest(l, a => a.ShiftCursorRight()));

                // Long string
                TestPrompt("Twenty", lcd, l => l.Write(Twenty));
                TestPrompt("Fourty", lcd, l => l.Write(Fourty));
                TestPrompt("Eighty", lcd, l => l.Write(Eighty));

                TestPrompt("Twenty-", lcd, l => WriteFromEnd(l, Twenty));
                TestPrompt("Fourty-", lcd, l => WriteFromEnd(l, Fourty));
                TestPrompt("Eighty-", lcd, l => WriteFromEnd(l, Eighty));

                TestPrompt("Wrap", lcd, l => l.Write(new string('*', 80) + ">>>>>"));
                TestPrompt("Perf", lcd, PerfTests);

                // Shift display right
                lcd.Write("Hello .NET!");
                try
                {
                    int   state = 0;
                    Timer timer = new Timer(1000);
                    timer.Elapsed += (o, e) =>
                    {
                        lcd.SetCursorPosition(0, 1);
                        lcd.Write(DateTime.Now.ToLongTimeString() + " ");
                        if (state == 0)
                        {
                            state = 1;
                        }
                        else
                        {
                            lcd.ShiftDisplayRight();
                            state = 0;
                        }
                    };
                    timer.AutoReset = true;
                    timer.Enabled   = true;
                    Console.ReadLine();
                }
                finally
                {
                    lcd.DisplayOn   = false;
                    lcd.BacklightOn = false;
                    Console.WriteLine("Done...");
                }
            }
        }