LDD MOC: Arm Signal

[JopieK]

Hereby I present a prototype of my LEGO Arm signal.

I have already done previous work on this:

I use a nylon string to attach the servo to the signal arm.

The control is done by an Arduino.

Next step will be to make a system of more arm signals.

The only other addition is some lead hot glued to the white round tile.

That is the only real modification (that is reversible).

Instructions

For the servo I use a 8524 servo from Robbe. Previous tests with memory wire failed (Click!).

The memory wire actuator is too fragile (I broke two and have quite some electronics background).

At LEGOWorld (Zwolle) 2010 I had working signals like this, but the thing with this setup is that it is very compact and modular.

Arduino sketch for Arduino 1.0

Note: I now adjusted the servo so that it moves more realistically (more gradually).

[windroosje]

Nice, its looks great! I'm interested, whats your site?

[JopieK]

You know what my site is don't you ;) (she is just kidding me ;), girls...)

[lightningtiger]

Excellent idea and design 'JopieK', you need to sync the signals with switching points on a track.

Brick On Design On !

[JopieK]

Excellent idea and design 'JopieK', you need to sync the signals with switching points on a track.

Brick On Design On !

I had this idea (did actually some testing already):

                                      	[ point motor ]

          		=----o              =----o

  [ reed ]                      [ reed ]

[ IR Barrier ]     		[ IR Barrier ]				[ Arduino with RF radio lin ]

The reed sensors detect the magnets under trains.

The IR barrier can also let the train know that it needs to stop (with an IR receiver in the train).

This of course in combination with a point that combines two lines to one.

[LEGO Train 12 Volts]

Very nice signal, perfect in its simplicity!

Great color scheme!