so at the second time i dont have to use thisWell, read it again, it says right there:
B4X:Interval As Long Gets or sets the interval between tick events, measured in milliseconds.
..... ' your other code
tmr_Reset(2500) ' reset timer to 2.5s interval
....
Sub tmr_Reset(ms As Int)
tmr.Enabled=False
tmr.Interval=ms
tmr.Enabled=True
End Sub