void OverwriteRange(int rowIdx, Range r, List <char> row)
{
byte[] b = new byte[r.End - r.Start + 4];
Array.Copy(new byte[] { 0x1f, 0x24, (byte)(r.Start + 1), (byte)(rowIdx + 1) }, b, 4);
for (int i = r.Start; i < r.End; i++)
{
b[4 + i - r.Start] = (byte)row[i];
}
writer.Send(b);
}
public VfdPanel(VfdWriter w, int brightness)
{
writer = w;
_Brightness = brightness;
_BrightnessBefore = brightness;
w.Send(new byte[] { 0x0c /* clear */ });
for (int i = 0; i < NUM_ROW; i++)
{
_Rows.Add(new List <char>(" "));
}
foreach (var r in _Rows)
{
_RowsBefore.Add(new List <char>(r));
}
w.Send(new byte[] { 0x1f, 0x58, (byte)(Brightness + 1) }); // brightness
}