public static void WriteToLcd()
{
Console.WriteLine("writing to the lcd");
const ConnectorPin sdaPin = ConnectorPin.P1Pin03;
const ConnectorPin sclPin = ConnectorPin.P1Pin05;
using (var driver = new I2cDriver(sdaPin.ToProcessor(), sclPin.ToProcessor()))
{
var deviceConnection = new Mcp23017I2cConnection(driver.Connect(0x20));
Console.WriteLine("Connected");
// turn on LCD backlight (on/off/on)
deviceConnection.SetDirection(Mcp23017Pin.A0, Mcp23017PinDirection.Output);
deviceConnection.SetPinStatus(Mcp23017Pin.A0, true);
Thread.Sleep(500); // wait
deviceConnection.SetPinStatus(Mcp23017Pin.A0, false);
Thread.Sleep(500); // wait
deviceConnection.SetPinStatus(Mcp23017Pin.A0, true);
}
// light is on, let's write
var settings = new Hd44780LcdConnectionSettings
{
ScreenWidth = 16,
ScreenHeight = 2
};
settings.Encoding = Encoding.ASCII;
using (Hd44780Configuration configuration = Hd44780Configuration.LoadGpioConfiguration())
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 });
connection.Clear();
connection.WriteLine("Pi & Bash>_");
Thread.Sleep(750);
connection.WriteLine("Test");
Thread.Sleep(750);
connection.WriteLine("Thank You");
Thread.Sleep(750);
connection.WriteLine("more text");
Thread.Sleep(750);
connection.WriteLine("and another bit");
Thread.Sleep(2000);
}
}
public static void TurnOnGreenLed()
{
const ConnectorPin sdaPin = ConnectorPin.P1Pin03;
const ConnectorPin sclPin = ConnectorPin.P1Pin05;
const Mcp23017Pin ledGreen = Mcp23017Pin.B0;
using (var driver = new I2cDriver(sdaPin.ToProcessor(), sclPin.ToProcessor()))
{
var deviceConnection = new Mcp23017I2cConnection(driver.Connect(0x20));
Console.WriteLine("Connected");
deviceConnection.SetDirection(ledGreen, Mcp23017PinDirection.Output);
// green light off
deviceConnection.SetPinStatus(ledGreen, true);
System.Threading.Thread.Sleep(1000); // wait a sec
deviceConnection.SetPinStatus(ledGreen, false);
}
}
/// <summary>
/// Writes the value of the pin.
/// </summary>
/// <param name="state">if set to <c>true</c>, pin is set to high state.</param>
public void Write(bool state)
{
connection.SetPinStatus(pin, state);
}
public void SetBacklight(bool enabled)
{
deviceConnection.SetPinStatus(Mcp23017Pin.A0, enabled);
}
