Build the Triori Game
The Ancient Greek GameDifficulty: Intermediate
Assembly Time: 12 hours
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:
|Part Description||Manufacturer Part Number|
|DPDT On-On Toggle Switch||T201T1B1A1QN|
|LED Mounting Hardware||PT18H013|
|7-Segment Red LED Display||LDD5121-20|
|0.1µF Monolithic Capacitor||MD.1|
|T1-3/4 Green/Red LED||LHG3392|
|T1-3/4 Green LED||LG3330|
|T1-3/4 Yellow LED||LY3330|
|T1-3/4 Red LED||UT1871-81-M1-R|
|74HC573N Latch IC||74HC573|
|36-Pin Male Header||7000-1X36SG|
|2.1mm DC Power Jack||GCD014-R|
|20-Pin IC Socket||6000-20-R|
|SPST Off-(On) Pushbutton Switch||BTS-1102B-2|
|AA Batteries||ALK AA (EN91)|
|Heat Shrink Tubing||FIT-221B-1/16-BK100|
|IDC Connector 10 Contacts||746285-1|
|Silicone Heat Sink Tube||10-8108|
|10-Conductor Ribbon Cable||171-10-10|
|2-Pin Terminal Block||OSTTC020162|
|40-Pin IC Socket||6000-40DW-R|
|18-Pin IC Socket||6000-18DW-R|
|10-Pin Shrouded Header||7110-10SG-R|
|8-AA Battery Holder||BH-382-B-R|
|2-Digit 7-Segment Display||HDSP-5621|
|3-Position Terminal Block||OSTTA030161|
|Printed Circuit Board|
Hot glue gun/glue stick
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.
Step 1: Component PlacementThe main board only has components on the top side.
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 BoardUse this photo to complete the main board. Note: TD62783 in photo = UDN2981A
Step 3: Make the KeypadsPlace the buttons and connectors onto the boards. The connectors must be fitted to the underside of the boards.
Step 4: Place the Buttons on Two Keypads
This keypad diagram can be useful if you have questions. Note: It's not a guide, only for advisory.
Step 5: Make the DisplaysPlace the 7-segment displays and connectors on the boards. The connectors must be fitted to the underside of the boards.
Step 6: Place the Displays on the Upside of the Boards
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.
Step 8: LEDs and ButtonsCut 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
Step 10: Place All LEDs on the Triori TablePlace 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.
Step 11: Connect the Main Switch to the Main Board
Step 12: Lateral Side of BoxThis 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.
Step 13: Solder All Surface ComponentsUse a hot glue gun to ensure all parts are stable.
Step 14: Make All Necessary ConnectionsUse flexible wires to connect the keyboards and displays with the main board. Use the main board photo in Step 1 as a guide.
Click to enlarge