01 Do[
02    DeviceWrite["GPIO", ledpins[[1]]->1];
03    Pause[10];
04    DeviceWrite["GPIO", ledpins[[2]]->1];
05    Pause[2];
06    DeviceWrite["GPIO", ledpins[[1]]->0];
07    DeviceWrite["GPIO", ledpins[[2]]->0];
08    DeviceWrite["GPIO", ledpins[[3]]->1];
09    Pause [10];
10    DeviceWrite["GPIO", ledpins[[2]]->1];
11    DeviceWrite["GPIO", ledpins[[3]]->0];
12    Pause [2];
13    DeviceWrite["GPIO", ledpins[[2]]->0];
14    , {3}]