Finite State Machine Panel Wiring

As with the Tape Panel I started by wiring all of the ground leads together for the LEDs and buttons then added a jumper so I could attach the ground(s) to one of the Expander's extra GND pins.

I added limiting resistors to all of the lamps.

Then I mounted a second Expander PCB to the back of the Finite State Machine Panel with two sided tape and connected all 16 of the purple status lamps to it. I had to change the I2C address for this board so it would not conflict with the first. There are jumpers for this.

Here are all the connections made:

From	To
Lamps: C, B, A, READ, WRITE, MOVE, GOTO, A1, A0, Ab, B1, B0, Bb, C1, C0, Cb	Extender Pins: PB7, PB6, PB5, PB4, PB3, PB2, PB1, PB0, PA0, PA1, PA2, PA3, PA4, PA5, PA6, PA7
Transition Table Reader +5V	Extender Pins: VCC
Transition Table Reader GND	Extender Pin: GND
Wire Ground	Extender Pin: GND

I installed the Finite State Machine Panel onto the console and proceeded to wire the 33 Hall Effect Sensors to the Arduino.

Here are the Arduino pins the sensors are connected to:

	A1	A0	Ab	B1	B0	Bb	C1	C0	Cb
WRITE	22	23	n/a	24	25	n/a	26	27	n/a
MOVE	28	29	30	31	32	33	34	35	36
GOTO 1	37	38	39	40	41	42	43	44	45
GOTO 2	46	47	48	49	50	51	52	53	10

In addition the following connections were made:

From	To
HALT Lamp	Arduino Pin: 11
PLAY Button	Arduino Pin: 12
RUN/STEP Switch	Arduino Pin: 13
Extender Pin: GND	Arduino Pin: GND
Extender Pin: VCC	Arduino Pin: VCC
Extender Pin: SCL	Tape's Extender Pin: SCL
Extender Pin: SDA	Tape's Extender Pin: SDA

Done Wiring

That's it. The Turing Machine Demonstrator hardware is completed. More testing and a lot of coding are in my immediate future.

Done Wiring

Tape Panel Wiring

Testing and a First Demonstration

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