84 lines
3.5 KiB
C#
84 lines
3.5 KiB
C#
// LCDDisplay Sensor Demonstration for the GrovePi.
|
|
|
|
// This example combines the GrovePi and the Grove LCDDisplay using the Raspberry Pi and GrovePi.
|
|
// http://www.dexterindustries.com/shop/grovepi-board/
|
|
// http://www.dexterindustries.com/shop/LCDDisplay-sensor/
|
|
|
|
// Connct the LCD Display to any I2C port on the GrovePi.
|
|
|
|
/*
|
|
The MIT License(MIT)
|
|
|
|
GrovePi for the Raspberry Pi: an open source platform for connecting Grove Sensors to the Raspberry Pi.
|
|
Copyright (C) 2016 Dexter Industries
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
of this software and associated documentation files (the "Software"), to deal
|
|
in the Software without restriction, including without limitation the rights
|
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
copies of the Software, and to permit persons to whom the Software is
|
|
furnished to do so, subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included in
|
|
all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
THE SOFTWARE.
|
|
*/
|
|
|
|
using System;
|
|
using Windows.ApplicationModel.Background;
|
|
using System.Threading.Tasks;
|
|
|
|
// Add using statements to the GrovePi libraries
|
|
using GrovePi;
|
|
using GrovePi.Sensors;
|
|
using GrovePi.I2CDevices;
|
|
|
|
namespace LCDDisplay
|
|
{
|
|
public sealed class StartupTask : IBackgroundTask
|
|
{
|
|
public void Run(IBackgroundTaskInstance taskInstance)
|
|
{
|
|
|
|
// Connect the RGB display to one of the I2C ports.
|
|
IRgbLcdDisplay display = DeviceFactory.Build.RgbLcdDisplay();
|
|
|
|
// Send out some diagnostics into the debug Output.
|
|
System.Diagnostics.Debug.WriteLine("Hello from Dexter Industries!");
|
|
System.Diagnostics.Debug.WriteLine("Connect the LCD Screen to any I2C port on the GrovePi.");
|
|
|
|
// Loop endlessly
|
|
while (true)
|
|
{
|
|
Task.Delay(100).Wait(); // Delay 0.1 second
|
|
// We need to make sure we delay here. If we don't, we won't be able to read
|
|
// the LCD Screen.
|
|
try
|
|
{
|
|
// First, output to the LCD Display.
|
|
display.SetText("Hello from Dexter Industries!").SetBacklightRgb(255, 50, 255);
|
|
// Then output to the debug window.
|
|
System.Diagnostics.Debug.WriteLine("Hello from Dexter Industries!");
|
|
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
// NOTE: There are frequent exceptions of the following:
|
|
// WinRT information: Unexpected number of bytes was transferred. Expected: '. Actual: '.
|
|
// This appears to be caused by the rapid frequency of writes to the GPIO
|
|
// These are being swallowed here/
|
|
|
|
// If you want to see the exceptions uncomment the following:
|
|
// System.Diagnostics.Debug.WriteLine(ex.ToString());
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|