func linesDemo(l *lsi.LCDSysInfo) {
l.Clear(lsi.LINE_ALL, lsi.BG_COLOR_BLACK)
time.Sleep(500 * time.Millisecond)
l.DrawLine(lsi.Line{Y1: 22, X1: 10, Y2: 100, X2: 150, Color: lsi.BG_COLOR_BLUE})
l.DrawLine(lsi.Line{Y1: 100, X1: 150, Y2: 200, X2: 10, Color: lsi.BG_COLOR_GREEN})
l.DrawLine(lsi.Line{Y1: 35, X1: 100, Y2: 50, X2: 233, Color: lsi.BG_COLOR_YELLOW})
l.DrawLine(lsi.Line{Y1: 152, X1: 2, Y2: 3, X2: 50, Color: lsi.BG_COLOR_RED})
}
