64 lines
1.9 KiB
C#
64 lines
1.9 KiB
C#
using System;
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using System.IO;
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using System.IO.Ports;
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using System.Text;
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using System.Threading.Tasks;
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namespace Elwig.Helpers.Weighing {
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public class GassnerScale : IScale {
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protected SerialPort Serial = null;
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protected StreamReader Reader;
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protected StreamWriter Writer;
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public string Manufacturer => "Gassner";
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public int InternalScaleNr => 1;
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public string Model { get; private set; }
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public int ScaleNr { get; private set; }
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public bool IsReady { get; private set; }
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public bool HasFillingClearance { get; private set; }
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public int? WeightLimit { get; private set; }
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public GassnerScale(int scaleNr, string model, string connection) {
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ScaleNr = scaleNr;
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Model = model;
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IsReady = true;
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HasFillingClearance = false;
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if (!connection.StartsWith("serial:"))
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throw new ArgumentException("Unsupported scheme");
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Serial = Utils.OpenSerialConnection(connection);
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Writer = new(Serial.BaseStream, Encoding.ASCII, -1, true);
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Reader = new(Serial.BaseStream, Encoding.ASCII, false, -1, true);
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}
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public void Dispose() {
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Writer.Close();
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Reader.Close();
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Serial.Close();
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GC.SuppressFinalize(this);
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}
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public async Task<WeighingResult> Weigh(bool incIdentNr) {
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await Writer.WriteAsync(incIdentNr ? "\x05" : "?");
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// TODO receive response
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return new();
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}
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public async Task<WeighingResult> GetCurrentWeight() {
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return await Weigh(false);
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}
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public async Task<WeighingResult> Weigh() {
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return await Weigh(true);
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}
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public async Task Empty() { }
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public async Task GrantFillingClearance() { }
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public async Task RevokeFillingClearance() { }
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}
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}
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