SAMCO DIY Arduino Powered IR Light Gun

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samco:
Thanks lightgungamer!

To be honest this was something that I really hadn't checked too much before, so just had to do a quick test. The LED's I use from Adafruit don't have a particularly wide viewing angle but if I go from maximum left position (gun pointing just left of screen when straight on) and maximum right position (opposite for right position) it doesn't seem to change all that much. However if I go from sitting to standing there is a decent change, curser probably moves about 20 pixels down. Not sure how this compares to the Aimtrak?

I'm currently looking for wider angle LED's for the sensor bar, so when I find them I can do some better tests.

Cheers

lightgungamer:
That sounds really good to be honest.

I haven’t had a chance to do a proper test but I always noticed the drift when moving side to side more.

I’ve been trying to get my head round how it works out the position and it seems like you could account for sideways movement based on the previewed distance between the LEDs but I can’t think of anything that could deal with up and down movement if the leds at on the same level.

I’ve ordered the pcb from you so I’m going to give this a go and build it.
I’ve started a write up on my site here https://lightgungamer.com/how-to-build-your-own-lightgun/

I’m going to add more to it once I’ve got it built.

One thing I was wondering though is if you think the M4 board would work for the build as the M0 seems to be out of stock.

I love what you are doing here. Apart from anything else, it’s a really accessible way for people to have a go and play around with this.

Sent from my iPhone using Tapatalk

samco:
Yeah, it's super hard to get your head around and then throw in tilt correction it's even tricker. I will make a sort video on how the tilt correction works eventually :)

That's so cool you got PCB, I'd love to know how you go. I'll be really interested to see how you feel the SAMCO compares to other guns you've tried. And yes did a quick check for you the ItsyBity M4 has exactly the same pinouts as the M0 and and from what I can tell doesn't share any of the pins I used with I2C (the reason why the AtMega32u4 doesn't work unfortunately) so you can use the exact same sketch.

Also thanks for the review & general interest in the project. I really appreciate it!

I really like what your doing with your page too. Lots of resources to get even more light gun games up an running :)

johnm:

Excellent work there samco, I've picked up a couple of Namco Guncon but as my intention would be for my kids to use it then the issues with height would show up as the guns are passed around so i might wait till its tweaked out or they get bigger :D

One thing I did like about your approach is the us of arduino, my limit to programming was typing basic listings printed in C&VG magazine into my ZX Spectrum back in the 80's but could that arduino be programmed to interface with different consoles much like the Kade did as a joystick encoder. With the rise in Retro CRT's becoming hard to find and expensive a Lightgun that imitates a joystick/mouse sounds like a winner

Howard_Casto:
I'll answer that one...… If the games in question could also be controlled via an analog stick then yes, but if it's light gun only then probably not. Most light guns simply send two inputs to a console..... when the trigger is pressed and when the light sensor sees light. The timing of one vs the other is used by the game to calculate position. Since there isn't a way to fake that it won't work easily. If the game allows joystick support then it could work.

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