public Menu(MCP23017 mcp23017)
{
lcdBoard = new RGBLCDShield(mcp23017);
}
public static void Main()
{
// the MCP is what allows us to talk with the RGB LCD panel
mcp23017 = new MCP23017();
// and this is a class to help us chat with the LCD panel
lcdBoard = new RGBLCDShield(mcp23017);
// we'll follow the Adafruit example code
lcdBoard.Write("Hello, world!");
lcdBoard.SetBacklight(BacklightColor.White);
// get the time so that we can track # of seconds since power up
DateTime time = DateTime.Now;
Button currentButtons = 0;
while (true)
{
lcdBoard.SetPosition(1, 0);
// calculate the number of seconds since power on
var seconds = (DateTime.Now - time).Ticks / TimeSpan.TicksPerSecond;
lcdBoard.Write(seconds.ToString());
Button buttons = lcdBoard.ReadButtons();
// only update the screen if a new button is pressed
if (buttons != currentButtons && buttons != 0)
{
lcdBoard.Clear();
lcdBoard.SetPosition(0, 0);
if ((buttons & Button.Up) != 0)
{
lcdBoard.Write("UP ");
if (buttons == Button.Up) lcdBoard.SetBacklight(BacklightColor.Red);
}
if ((buttons & Button.Down) != 0)
{
lcdBoard.Write("DOWN ");
if (buttons == Button.Down) lcdBoard.SetBacklight(BacklightColor.Yellow);
}
if ((buttons & Button.Right) != 0)
{
lcdBoard.Write("RIGHT ");
if (buttons == Button.Right) lcdBoard.SetBacklight(BacklightColor.Green);
}
if ((buttons & Button.Left) != 0)
{
lcdBoard.Write("LEFT ");
if (buttons == Button.Left) lcdBoard.SetBacklight(BacklightColor.Teal);
}
if ((buttons & Button.Select) != 0)
{
lcdBoard.Write("SELECT ");
if (buttons == Button.Select) lcdBoard.SetBacklight(BacklightColor.Violet);
}
currentButtons = buttons;
}
}
}