My friends and I are all building laser tag guns. One of the requirements is to have magazines, which must have a maximum of around 15 rounds each. My plan for mine is that there will be an Arduino in each magazine, which via I2C sends the Arduino in the gun an integer representing the number of rounds left. The master Arduino inside of the gun will send, to this LCD, the code required to make the number of rounds remaining show up on the display. However, this will be about two feet away from my face, whereas I will be shooting at people at least 50 feet away from me. In some movie theaters, I have seen little boxes they give deaf people, which show the captions as if they are on the screen, but about two feet away from them. I would like to replicate this, where my eyes won't have to adjust for distance, but I have absolutely no clue how to.
Thanks in advance,
Danny.
This is an optics question, not an Arduino question.
Google 'diy augmented reality' you should find quite a few examples of how to do it.
This is really freaking hard unless you can get your hands on a google-glass-like glasses mounted display (I am so sad they dropped that product, I was super excited for it, more than any piece of hardware since the smartphone)
As an aside...
Instead of an arduino in each mag, save yourself some money. Put the smallest (in capacity), cheapest I2C EEPROMs (just make sure the rewrite longevity is okay) you can find into them, and just record the number of shots remaining on that... That'd greatly cut the cost of the mags, so you can have more mags, and everyone knows life is more fun with more ammo.
Thanks to everyone who responded, the googling of "diy augmented reality" really helped out with this, and the EEPROM IC idea will definitely cut the costs waaaaaayy down.
This should be one epic laser tag fight!