Arduino connects to a cardboard-circuit

One could create experimental circuits like this simple input/output interface using floating wiring and a breadboard.

If the circuit is not too complex a printed circuit board is not necessary. The process described in this post is just fine and results in a nice cardboard-circuit.

The above cardboard-circuit any many more are possible on cardboard and they can get easily connected to e. g. an arduino board.

Arduino controls a cardboard-circuit
When using an arduino board to connect to a cardboard-circuit simple input/output interface there are many ways of actually implementing the control program of the system.

Some (amongst others) are:     

•     C (Arduino IDE)

    ...

      if (digitalRead(I0_1)!=0)

      {

        digitalWrite(O0_0, HIGH);

        digitalWrite(O0_1, HIGH);

      }

      else

      {

        digitalWrite(O0_0, LOW);

        digitalWrite(O0_1, LOW);

      }

    ...

•     LDmicro (Ladder Logic) creating C

•          Arduino with plcLib

    ...

      in(I0_1);

      out(O0_0);

      out(O0_1);

      in(I0_2);

      out(O0_2);

      out(O0_3);

      in(I0_3);

      out(O0_4);

      out(O0_5);

      in(I0_4);

      out(O0_6);

      out(O0_7);

    ...

1-bit ICU controls a cardboard-circuit
Using the WDR-1-bit-computer simulator it is possible to simulate a cardboard-circuit simple input/output interface and its 1-bit ICU control program.

     ...

    LDC I0_1

    STO O0_0

    STO O0_1

    LDC I0_2

    STO O0_2

    STO O0_3

    LDC I0_3

    STO O0_4

    STO O0_5

    LDC I0_4

    STO O0_6

    STO O0_7

    ...

A hardware based emulation running on an arduino connected to the cardboard-circuit can also be used to run the 1-bit ICU control program.

    ...

      ext_ram[3]  = 0x21; // LDC 1

      ext_ram[4]  = 0x80; // STO 0

      ext_ram[5]  = 0x81; // STO 1

      ext_ram[6]  = 0x22; // LDC 2

      ext_ram[7]  = 0x82; // STO 2

      ext_ram[8]  = 0x83; // STO 3

      ext_ram[9]  = 0x23; // LDC 3

      ext_ram[10] = 0x84; // STO 4

      ext_ram[11] = 0x85; // STO 5

      ext_ram[12] = 0x24; // LDC 4

      ext_ram[13] = 0x86; // STO 6

      ext_ram[14] = 0x87; // STO 7

    ...

And of course a real WDR-1-bit-computer is able to perform the task. Just connect the cardboard-circuit and run the native 1-bit ICU control program.

    ...

    LDC 1

    STO 0

    STO 1

    LDC 2

    STO 2

    STO 3

    LDC 3

    STO 4

    STO 4

    LDC 4

    STO 6

    STO 7

    ...

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