A   P R O J E C T   WITH  KIDS
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GIVEN ...

   (1)  SCHRITT-SCHALT-WERK, see  4 x 12 Step SSW
   (2)  BATERY-BOX ( w. 7 x 3.7 V recycled Li-Ion batteries )
   (3)  2 x 6 color Lab-Cables
   (4)  TRAFFIC-LIGHTS-PLATFORM ( Main-Street w. separation / Side-Street on the right)
   (5)  PULSAR-Relay, see  PULSAR-Relay
   (6)  TEST-PLATFORM with Capacitors ( 2 x 250 μF, 2 x 500 μF, 1 x 2200 μF )
        to define the TIME-UNIT PER STEP.

PROPOSAL MINIMAL-VERSION ...

   (a)  Cycle:  ... RED - YELLOW - GREEN - YELLOW - RED ...
   (b)  When Main-Street is GREEN, than Side-Street is RED ( a.v.v. )
   (c)  Main-Street has longer GREEN-PHASE than Side-Street

HOW TO DO ...

   (a)  12 Positions of the SSW:  ... 1 x YELLOW - 6 x GREEN - 1 x YELLOW - 4 x RED ...
   (b)  Wireing TRAFFIC-LIGHTS-PLATFORM:  Main-Str. GREEN = RED Side-Str. ( a.v.v. )
   (c)  Timing the pulses by selection of the Capacitors
   (d)  Selection of Capacitors to bridge the "Switching-Gap"

SKETCH: How LEDs are powered ...

        

"ENJOY!" ...

        

                               Opposite View see  4 x 12 Step SSW
impressum:
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© C.HAMANN                 http://public.BHT-Berlin.de/hamann                  10/12/12