This is a DIY digital scoreboard for indoor games. All the modules of the scoreboard come fully assembled. You just have to find a way to fix it on a wooden board or make other arrangements.

There are 3 modules in each scoreboard:

• SCOREDUINO-B: This is the central module of the Scoreboard. This is an Arduino-based controller supported by a Bluetooth module and an RF module for communicating with the 2 digits displays placed on its two sides. Read more about SCOREDUINO-B.
• The right display: The right display gets up and down count commands from the central Scoreduino-B controller. The commands can be sent by RF remote control or SCORE4 module of the Scoreduino app. Specific numbers can also be sent to the right display.
• The left display: The left display also gets up and down count commands from the central Scoreduino-B controller. The commands can be sent by RF remote control or SCORE4 module of the Scoreduino app. Specific numbers can also be sent to the left display.

Supporting modules:

• RF receiver and the remote control: It uses the basic 4CH (the videos show 6CH, we sell 4CH only) RF module and remote control to send commands.
• Bluetooth module: The scoreboard can be controlled with SCORE4 module of the Scoreduino app and it communicates via Bluetooth.

Power supply: 2.3″ Scoreboard works with 9V.

How does it work? To understand this working principle of Scoreboard, you need to understand two modules:

• SCOREDUINO-B: This is an Arduino based controller that sends up and down commands to up and down counters.
• Single-digit up and down counter module: We have described how 74LS192 based up and down counter modules work. You need to combine two of the single-digit counters and connect them to SCOREDUINO-B.

These are the pins on the Scoreduino-B board:

On the left side:

• 9V: This is to power up RED colored 2.3″ displays. We get this voltage from the voltage regulator LM78XX.
• 5V: 5V is used for CD4511 and 74LS192/CD40192 on the left side
• GND: GND of SCOREDUINO-B connects with the GND of 2 digits up/down counter
• A: Send pulse from SCOREDUINO-B via this pin in order to count UP
• B: Send pulse from SCOREDUINO-B via this pin in order to count down
• 14: Reset pin. Send pulse to reset the count.

On the right side:

• V: V depends upon the color of the displays used on the right side. For example, GREEN colored 2.3″ display needs 12V. This is the default supply voltage.
• 5V: 5V is used for CD4511 and 74LS192/CD40192 on the right side
• GND: GND of SCOREDUINO-B connects with the GND of 2 digits up/down counter
• C: Send pulse from SCOREDUINO-B via this pin in order to count UP
• D: Send pulse from SCOREDUINO-B via this pin in order to count down
• 14: Reset pin. Send pulse to reset the count.

See all the images on Flickr

Videos: 2.3 inch scoreboard. Watch it on youtube

Package includes:

• Fully electronically assembled scoreboard
• Power supply (shipped from third party store)