/// <summary>
/// Initializes a new instance of the <see cref="Mcp23017InputBinaryPin"/> class.
/// </summary>
/// <param name="connection">The connection.</param>
/// <param name="pin">The pin.</param>
/// <param name="resistor">The resistor.</param>
/// <param name="polarity">The polarity.</param>
public Mcp23017InputBinaryPin(Mcp23017I2cConnection connection, Mcp23017Pin pin,
Mcp23017PinResistor resistor = Mcp23017PinResistor.None,
Mcp23017PinPolarity polarity = Mcp23017PinPolarity.Normal)
{
this.connection = connection;
this.pin = pin;
connection.SetDirection(pin, Mcp23017PinDirection.Input);
connection.SetResistor(pin, resistor);
connection.SetPolarity(pin, polarity);
}
/// <summary>
/// Initializes a new instance of the <see cref="Mcp23017OutputBinaryPin"/> class.
/// </summary>
/// <param name="connection">The connection.</param>
/// <param name="pin">The pin.</param>
/// <param name="resistor">The resistor.</param>
/// <param name="polarity">The polarity.</param>
public Mcp23017OutputBinaryPin(Mcp23017I2cConnection connection, Mcp23017Pin pin,
Mcp23017PinResistor resistor = Mcp23017PinResistor.None,
Mcp23017PinPolarity polarity = Mcp23017PinPolarity.Normal)
{
this.connection = connection;
this.pin = pin;
connection.SetDirection(pin, Mcp23017PinDirection.Output);
connection.SetResistor(pin, resistor);
connection.SetPolarity(pin, polarity);
}
static void Main(string[] args)
{
var sdaPin = ConnectorPin.P1Pin03.ToProcessor();
var sclPin = ConnectorPin.P1Pin05.ToProcessor();
using (var driver = new I2cDriver(sdaPin, sclPin))
{
var deviceConnection = new Mcp23017I2cConnection(driver.Connect(0x20));
deviceConnection.SetDirection(Mcp23017Pin.B0, Mcp23017PinDirection.Output);
while (!Console.KeyAvailable)
{
deviceConnection.Toogle(Mcp23017Pin.B0);
Thread.Sleep(1000);
}
}
}
private static Hd44780Configuration LoadMcp23017Configuration(IEnumerable<string> args)
{
var addressText = args.SkipWhile(s => !String.Equals(s, "mcp23017", StringComparison.InvariantCultureIgnoreCase)).Skip(1).DefaultIfEmpty("0x20").First();
var address = addressText.StartsWith("0x", StringComparison.InvariantCultureIgnoreCase)
? Int32.Parse(addressText.Substring(2), NumberStyles.HexNumber)
: Int32.Parse(addressText);
const Mcp23017Pin registerSelectPin = Mcp23017Pin.B7;
const Mcp23017Pin clockPin = Mcp23017Pin.B5;
var dataPins = new[]
{
Mcp23017Pin.B1,
Mcp23017Pin.B2,
Mcp23017Pin.B3,
Mcp23017Pin.B4
};
Console.WriteLine();
Console.WriteLine("Using I2C connection over MCP23017 Expander");
Console.WriteLine("\tRegister Select: {0}", registerSelectPin);
Console.WriteLine("\tClock: {0}", clockPin);
Console.WriteLine("\tData 1: {0}", dataPins[0]);
Console.WriteLine("\tData 2: {0}", dataPins[1]);
Console.WriteLine("\tData 3: {0}", dataPins[2]);
Console.WriteLine("\tData 4: {0}", dataPins[3]);
Console.WriteLine("\tBacklight: VCC");
Console.WriteLine("\tRead/write: GND");
Console.WriteLine();
const ConnectorPin sdaPin = ConnectorPin.P1Pin03;
const ConnectorPin sclPin = ConnectorPin.P1Pin05;
var driver = new I2cDriver(sdaPin.ToProcessor(), sclPin.ToProcessor()) { ClockDivider = 512 };
var connection = new Mcp23017I2cConnection(driver.Connect(address));
return new Hd44780Configuration(driver)
{
Pins = new Hd44780Pins(
connection.Out(registerSelectPin),
connection.Out(clockPin),
dataPins.Select(pin => (IOutputBinaryPin)connection.Out(pin)))
};
}
static void Main()
{
const ConnectorPin sdaPin = ConnectorPin.P1Pin03;
const ConnectorPin sclPin = ConnectorPin.P1Pin05;
Console.WriteLine("MCP-23017 Sample: Switch LED on B0 pin");
Console.WriteLine();
Console.WriteLine("\tSDA: {0}", sdaPin);
Console.WriteLine("\tSCL: {0}", sclPin);
Console.WriteLine();
using (var driver = new I2cDriver(sdaPin.ToProcessor(), sclPin.ToProcessor()))
{
var deviceConnection = new Mcp23017I2cConnection(driver.Connect(0x20));
deviceConnection.SetDirection(Mcp23017Pin.B0, Mcp23017PinDirection.Output);
while (!Console.KeyAvailable)
{
deviceConnection.Toogle(Mcp23017Pin.B0);
Thread.Sleep(1000);
}
}
}
private static Hd44780Configuration LoadI2cConfiguration()
{
const Mcp23017Pin registerSelectPin = Mcp23017Pin.B0;
const Mcp23017Pin clockPin = Mcp23017Pin.B1;
var dataPins = new[]
{
Mcp23017Pin.B2,
Mcp23017Pin.B3,
Mcp23017Pin.B4,
Mcp23017Pin.B5
};
Console.WriteLine();
Console.WriteLine("Using I2C connection");
Console.WriteLine("\tRegister Select: {0}", registerSelectPin);
Console.WriteLine("\tClock: {0}", clockPin);
Console.WriteLine("\tData 1: {0}", dataPins[0]);
Console.WriteLine("\tData 2: {0}", dataPins[1]);
Console.WriteLine("\tData 3: {0}", dataPins[2]);
Console.WriteLine("\tData 4: {0}", dataPins[3]);
Console.WriteLine();
const ConnectorPin sdaPin = ConnectorPin.P1Pin03;
const ConnectorPin sclPin = ConnectorPin.P1Pin05;
var driver = new I2cDriver(sdaPin.ToProcessor(), sclPin.ToProcessor());
driver.ClockDivider = 2048;
var connection = new Mcp23017I2cConnection(driver.Connect(0x20));
return new Hd44780Configuration(driver)
{
RegisterSelect = connection.Out(registerSelectPin),
Clock = connection.Out(clockPin),
Data = dataPins.Select(pin=>connection.Out(pin))
};
}
