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pandacraft 2025-03-21 16:04:17 +01:00
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Software/CSharp/GrovePi/Sensors/FourDigitDisplay.cs Normal file
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using System;
namespace GrovePi.Sensors
{
public interface IFourDigitDisplay
{
IFourDigitDisplay Initialise();
IFourDigitDisplay SetBrightness(byte brightness);
IFourDigitDisplay SetIndividualSegment(byte segment, byte value);
IFourDigitDisplay SetLedsOfSegment(byte segment, byte leds);
IFourDigitDisplay SetScore(byte left, byte right);
IFourDigitDisplay AllOn();
IFourDigitDisplay AllOff();
}
internal class FourDigitDisplay : IFourDigitDisplay
{
private const byte InitialiseCommandAddress = 70;
private const byte BrightnessCommandAddress = 71;
private const byte ValueCommandAddress = 72;
private const byte ValueZerosCommandAddress = 73;
private const byte IndividualDigitCommandAddress = 74;
private const byte IndividualLedsCommandAddress = 75;
private const byte ScoreCommandAddress = 76;
private const byte AnalogReadCommandAddress = 77;
private const byte AllOnCommandAddress = 78;
private const byte AllOffCommandAddress = 79;
private readonly GrovePi _device;
private readonly Pin _pin;
internal FourDigitDisplay(GrovePi device, Pin pin)
{
if (device == null) throw new ArgumentNullException(nameof(device));
_device = device;
_pin = pin;
}
public IFourDigitDisplay Initialise()
{
var buffer = new[] {InitialiseCommandAddress, (byte) _pin, Constants.Unused, Constants.Unused};
_device.DirectAccess.Write(buffer);
return this;
}
public IFourDigitDisplay SetBrightness(byte brightness)
{
brightness = Math.Min(brightness, (byte) 7);
var buffer = new[] { BrightnessCommandAddress, (byte) _pin, brightness, Constants.Unused};
_device.DirectAccess.Write(buffer);
return this;
}
public IFourDigitDisplay SetIndividualSegment(byte segment, byte value)
{
var buffer = new[] {IndividualDigitCommandAddress, (byte) _pin, segment, value};
_device.DirectAccess.Write(buffer);
return this;
}
public IFourDigitDisplay SetLedsOfSegment(byte segment, byte leds)
{
var buffer = new[] {IndividualLedsCommandAddress, (byte) _pin, segment, leds};
_device.DirectAccess.Write(buffer);
return this;
}
public IFourDigitDisplay SetScore(byte left, byte right)
{
var buffer = new[] {ScoreCommandAddress, (byte) _pin, left, right};
_device.DirectAccess.Write(buffer);
return this;
}
public IFourDigitDisplay AllOn()
{
var buffer = new[] {AllOnCommandAddress, (byte) _pin, Constants.Unused, Constants.Unused};
_device.DirectAccess.Write(buffer);
return this;
}
public IFourDigitDisplay AllOff()
{
var buffer = new[] {AllOffCommandAddress, (byte) _pin, Constants.Unused, Constants.Unused};
_device.DirectAccess.Write(buffer);
return this;
}
}
}