I offer RFID DOMINATOR version 2.0 built by me, which has implemented firmware for 2 teams - red and blue. The stopwatch allows you to measure the total time of occupying a point during the duration of the Capture the Hill / Domination game mode in the Airsoft / Paintball game. It works like a chess clock, when only one team can be active on a point at a given time, the team that has more time to hold the point at the end of the day / game mode wins.

The hardware prototype has 2 LEDs in the colors of the given teams to indicate the current team holding the point. The player takes the team by attaching the RFID wristband to the reader. The wristbands are also in the colors of the teams, making it easier to distribute them to the players. The bracelets are maintenance-free.

In total, there are 10x red wristband, 10x blue wristband, 3x black wristband (referee that can stop time), 2x black wristband with eraser marking, which can stop time and reset it for a new game.

Power supply via mini USB cable (not supplied). All components are mounted on a PCB board, the main components such as Arduino, RFID reader and display are in pin strips. In the event of a malfunction, just pull out the given module and replace it with a new one. I also provide the .hex machine code to the prototype for the possibility of cloning the firmware to multiple devices, or to program the microcontroller in case of replacement, compatible for ATmega328P with 16 MHz oscillator (AVR Arduino Nano).

The PCB is double-sided (double-layer) with overcoats.
I am sending by post second class in my own hands, +3.9€ to the price. I send within 24 hours after payment, i.e. the following day in the afternoon. Before shipping, the hardware is tested and a functionality test video is created.
Possible to expand to 4 teams in the future, increase the number of wristbands or RFID cards to the current number (individual agreement).

It can also be powered via a 9V battery, it is necessary to solder the connection to Vin.

The PCB is equipped with:

• Arduino Nano V3.0
• RFID RC522 (13.56 MHz)
• LCD 2004A with I2C converter
• Active buzzer, circuit set to 2.3 kHz
• 2x LED 5mm
• 2x resistors

PCB dimensions: 104x103 mm x 45 mm (including components), contrast can be adjusted in the rear part
The inner diameter of the bracelets is approx. 55 mm. Price including post fees