Build the Triori Game

The Ancient Greek Game

Difficulty: Intermediate
Assembly Time: 12 hours
Designer: prchris


Triori Game The ancient Greek game Triori, also known as Triara, is very similar to tic-tac-toe. The game was originally played on the ground with stones by two people. The playing ground was in the shape of a square with diagonal and vertical lines leading to the center. There are nine positions: one in the middle and eight around the sides.

In this updated version of Triori, Player 1 has three red LEDs and player 2 has three green LEDs. The players take turns adding an LED to the square, but each position can light only with one color at a time and each color can only be moved into an adjacent position if there is a vacancy. The first player to make a line using their color wins.

Required tools and components:

Qty.
Part Description Manufacturer Part Number
1
DPDT On-On Toggle Switch T201T1B1A1QN
20
LED Mounting Hardware PT18H013
1
7-Segment Red LED Display LDD5121-20
10
0.1µF Monolithic Capacitor MD.1
10
T1-3/4 Green/Red LED LHG3392
10
T1-3/4 Green LED LG3330
10
T1-3/4 Yellow LED LY3330
10
T1-3/4 Red LED UT1871-81-M1-R
4
74HC573N Latch IC 74HC573
1
7805T Regulator 7805T
2
36-Pin Male Header 7000-1X36SG
10
1N5402 Diode 1N5402
1
2.1mm DC Power Jack GCD014-R
10
20-Pin IC Socket 6000-20-R
21
SPST Off-(On) Pushbutton Switch BTS-1102B-2
2
470µF Capacitor R470B25
4
AA Batteries ALK AA (EN91)
2
ATmega16-16PU MCU ATMEGA16-16PU
3
Heat Shrink Tubing FIT-221B-1/16-BK100
12
IDC Connector 10 Contacts 746285-1
1
Silicone Heat Sink Tube 10-8108
2
10-Conductor Ribbon Cable 171-10-10
1
2-Pin Terminal Block OSTTC020162
2
40-Pin IC Socket 6000-40DW-R
10
18-Pin IC Socket 6000-18DW-R
12
10-Pin Shrouded Header 7110-10SG-R
1
Box Enclosure H2507-R
1
Mechanical Buzzer TDB05LFPN
1
8-AA Battery Holder BH-382-B-R
60
220Ω Resistor CF1/4W221JRC
10
100kΩ Resistor CF1/4W104JRC
100
220kΩ Resistor CF1/4W204JRC
1
TO-220 Heatsink 577002B00000G
1
2-Digit 7-Segment Display HDSP-5621
1
3-Position Terminal Block OSTTA030161
7
10-Position Header 7400-1X10SG-R
1
Printed Circuit Board

Soldering iron
Solder
Digital multimeter
Lighter
Drill
Hot glue gun/glue stick
Green/black/red marker
Screwdriver
Ruler
Wire cutter
Wire stripper
3 UDN2981A-T Transistor Darlington or TD62783APG

Each player has a keyboard to move his or her own colors, an LED to indicate when it's a player's turn to play and a 7-segment display indicating what wins have been made.

The game also has:

• One button to clear the wins in the displays
• One button to save the wins and save progress
• LED indicator when the game is saved
• Low battery indication
• Button to enable or disable sounds
• Dual power supply inputs
• Power supply from battery or transformer

Note: The batteries do not charge when the circuit is powered by a transformer.

Top View of Completed TrioriTop View of Completed Triori (click to enlarge)


Side View of Completed TrioriSide View of Completed Triori (click to enlarge)

Step 1: Component Placement

The main board only has components on the top side.

Schematic Click to enlarge

This schematic of the main board can be useful if you have questions. Note: It's not a guide to complete the construction of the game, only for advisory.

Step 2: Complete Main Board

Use this photo to complete the main board. Note: TD62783 in photo = UDN2981A

Complete Main Board
Click to enlarge

Step 3: Make the Keypads

Place the buttons and connectors onto the boards. The connectors must be fitted to the underside of the boards.

Complete Main Board

Step 4: Place the Buttons on Two Keypads


Top View of KeypadTop View of Keypad (click to enlarge)

Bottom View of KeypadBottom View of Keypad (click to enlarge)

Keypad Diagram Click to enlarge

This keypad diagram can be useful if you have questions. Note: It's not a guide, only for advisory.

Step 5: Make the Displays

Place the 7-segment displays and connectors on the boards. The connectors must be fitted to the underside of the boards.
Displays


Step 6: Place the Displays on the Upside of the Boards


Top View of DisplaysTop View of Displays

Bottom View of DisplaysBottom View of Displays

Displays Click to enlarge

This display schematic can be useful if you have questions. Note: It's not a guide, only for advisory.

Step 7: Prepare the Box


Using a ruler, measure and mark the box where it needs to be drilled and cut. Use the top view of completed Triori photo as a guide. I recommend using a drill with a handle.

Displays

Step 8: LEDs and Buttons

Cut the strip sockets and solder them. Three buttons and all LEDs need socket strips. Use the side view of completed Triori photo above Step 1 as a guide.

Step 9: Heat the Shrink Tubing at the Ends of the Wiring with a Lighter


Heat the Shrink Tubing at the Ends of the Wiring with a Lighter

Step 10: Place All LEDs on the Triori Table

Place nine dual LEDs in the order shown in the photo and also place the players' LEDs (green and red). Connect the LEDs to the main board (Step 3) and place them using this photo. Be sure to use round clips for all LEDs.

Place All LEDs on the Triori Table Click to enlarge

Step 11: Connect the Main Switch to the Main Board


Connect the Main Switch to the Main Board Click to enlarge

Step 12: Lateral Side of Box

This photo shows the proposed location of components (red power LED, green save LED, yellow battery LED, main switch, clear button, save button and sound button). Connect the components to the main board based on photo in Step 1.

The proposed location of components

Step 13: Solder All Surface Components

Use a hot glue gun to ensure all parts are stable.

Glue gun

Step 14: Make All Necessary Connections

Use flexible wires to connect the keyboards and displays with the main board. Use the main board photo in Step 1 as a guide.

Make All Necessary Connections
Click to enlarge


Step 15: Grab a Friend and Play Triori


Make All Necessary Connections Click to enlarge