LZRTag

Ever wanted to set up your own system of Lasertag? Interested in having an easily modifiable system to create your own gamemodes and styles with? Or just looking for a cool project to try out? Well, why not take a spin at this!

Note: This project is not in serious development. I (Xasin) take no responsibility for what is done with this code, and I can't guarantee it'll do exactly what I tell it to (even if I try to give it treats >:c) However, it is a fully functional system, if you know how to use it, and it has proven itself to be pretty reliable and useful!

In order to have a functional game, you will need at least the following:

• Two or more soldered Lasertag Sets
• A WiFi access point or a newtwork of points throughout the arena.
• A MQTT Server, preferrably in the local network, to reduce ping.
• And a system running Ruby 2.4 or better, to run the Lasertag Backend and your gamemodes

Attention: The electronics aren't necessarily beginner-friendly. I've designed them with components no smaller than a TSOP package or a 0805 resistor, but the newer versions of the hardware do include two QFN Packages - one for a optional IMU, so it can be left out, and one for a standard I2S audio chip, for which you can use any breakout board that supports 44100Hz, 16 bit playback. If you have a hot air gun, definitely make use of it!

The electronics are based around the ESP32, a fairly cheap, powerful, WiFi and Bluetooth capable chip. The PCB includes all necessary support structures, including a battery charge circuit and a USB to UART converter to reprogram and debug the ESP. It comes with the following hardware:

• The ESP32 plus beefy voltage regulation, ESD protection, etc. It ain't gonna break!
• A MAX I2S decoder + amplifier, for on-board, high quality audio.
• A LSM6D IMU, to detect movement, collisions, gestures, etc.
• Peripherals to receive and send IR Signals (documented here: TODO)
• Feedback in the shape of WS2812 LEDs and a vibration motor
• Trigger, Gun Select and Reload buttons.

The vest connection is exposed with a D-SUB connector, and I2C lines are available to make more complex add-ons easier to achieve. There's also a I2C breakout connection on the PCB itself!

The Vest itself can be as simple as a couple of Vishay 40kHz IR receivers and WS2812 LEDs, but there is a connection for vest-specific haptic feedback, and via the I2C connection it's easy to add more complex features.

To solder one, check out the Aisler project here: https://aisler.net/p/QLILZEMV Or head to the "Electronics" folder and generate your own Gerber files!

The 3D printed casing I designed is totally optional - the electronics can be easily fitted into any other casing, provided it has space for a switch, a speaker and a couple of LEDs! However, if you do want to print it out, there's the Fusion360 page here: https://a360.co/2Lbm2zJ