The basic assembly scheme:

The scheme above is a basic hardware setup to generate digital signals.

Slightly more complicated, with the addition of buzzers:

The prototype:

PC base

The Arduino module is connected to the PC by a USB cable, emulating a serial port.

Base A

At this base we need two pushbuttons connected to pins 2 and 3 of the base PC Arduino using 50 m cables.
The first button labeled "I" for "Initialize" signals that the glider has passed base A to enter the outside zone.
The second button labeled "A" signals that the glider has passed base A coming from base B.

Base B

Only one pushbutton is required at this base.



item quantity unit price (€) price (€)
Arduino Uno board(*) 1 20 20
Push buttons 3 4 12
1kOhm resistors 3 .3
2.54 mm = 1/10" rows of connectors, bent or straight 2 5
Plastic box for the Arduino 1 10 10
Plastic boxes for each base 2 5 10
50m Electric wires (use telephone or ethernet or ...)
Wire to boxes connectors
Wire and soldering material

(*) For a hardware capable of the upcoming Android version, select the more expensive Arduino Mega ADK. For the PC version however, the Uno board is sufficient.

The hardware can be purchased from any electronics online shop.
Note that there are several kinds of pushbuttons. Look for the ones which are mono-stable, with contact ON when pressed.

Communications testing

Updated February 2013