RFID DOMINATOR 2.0 - Stopwatch for Airsoft / Paintball

Finished hardware of RFID DOMINATOR 2.0 stopwatch. That is afterwards placed into the custom 3D printed enclosure.

DOMINATOR is stopwatch for Airsoft / Paintball games. It is designed for couting full time of the point occupied by each of the teams included in the game. Based on firmware, it is standardly used in 2 or 4-team game. Each player has its own RFID wristband, or RFID card RFID keychain, some of the players can also have implant RFID tag in their hands. System is not limited by memory, so it can have also like 100 RFID tags included per each team. DOMINATOR comes with custom made PCB board.

First version of the RFID DOMINATOR 1.0 was using just 2 LEDs, upcoming version 2.0 is using up to 4 LEDs, but can be mounted with the 2 only.

Standardly DOMINATOR is included within game modes such as DOMINATION that is mostly used in European playgrounds related to Airsoft or Paintball. As device is not waterproof, it's recommended to use it indoors, for instance in CQB games etc.

Current consumption of this device is between 40-60 mA based on actual state of the game. So on small 2000 mAh powerbank it can be running for tenths of hours.

RFID DOMINATOR 2.0 is second version of Domination Timer. Changes that were performed on the PCB includes also cutout for access to the trimer on the back side of the LCD 2004A screen. So player can nowadays use screwdriver and change contrast of the LCD screen midgame too. There was problem, when device was set for warm conditions and then it was turned on in cold area, contrast was not good. In 1.0. version it was required to dismount the LCD screen to adjust contrast.

Hardware for RFID DOMINATOR 2.0 includes these components:

1. Arduino Nano V3.0
2. RFID reader RC522
3. LCD 2004A with I2C converter
4. LED diodes with 5 mm diameter
5. Active / Passive Buzzer

Basically based on version there can be placed 2 instead of 4 LED diodes and so on.

PCB itself has dimensions similar to 104x103 mm. It's double-sided PCB with overlays.

As you can see on the attached image, there are changes between version 1.0 and 2.0 on the PCB-side.

Absolutely!

DEMO version of the firmware can be tested for free via: https://download-directory.github.io/?url=https%3A%2F%2Fgithub.com%2Fmartinius96%2FAirsoft-DOMINATOR-RFID%2Ftree%2Fmaster%2Ffirmware

Make sure you wired the components as visible on schematics.

After downloading the firmware, you can upload .hex file into your Arduino Nano / Arduino Uno or standalone ATmega328P with 16 MHz oscillator using XLoader tool.

More about the whole project you can find at: https://martinius96.github.io/Airsoft-DOMINATOR-RFID/

For the project, there was created custom made Enclosure for PCB RFID DOMINATOR 2.0 that corresponds with its hardware.Enclosure dimensions are like 123x124x46 mm. It can be mounted from 2 pieces - front and back plate. Also enclosure has cutouts for belt, using which the whole unit can be mounted on the tree or veist.

Fully assembled device mounted on the veist using belt.

The belt width is 25 mm.

Device itself will get AT commands support.

That means, any player that will have the final RFID DOMINATOR unit will be able to set many functions, such as:

1. Game mode DOMINATION / COUNTDOWN
2. Time limit in hours or no time limit
3. Frequency and duration of beep of the buzzer
4. Allow or disable buzzer
5. Additional system settings, hardware check etc.

And after this update, the project will be ended.