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What I made: Hallowing LOOKTRON
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Please be positive and constructive with your questions and comments.

What I made: Hallowing LOOKTRON

by dirtyrob on Thu Nov 01, 2018 4:03 pm

Hi everyone,

I saw that there was a "Show us what you made!" forum, so I wanted to share what I did with the Hallowing from the last Adabox. For Halloween this year, my son wanted to dress as an agent from Odd Squad and he needed a proper gadget to go along with his costume. The eye animation on the Hallowing inspired me to build the LOOKTRON, which I guess helps people find missing things.

Here it is in all its glory. The gadget is a re-purposed Nerf gun that was gutted and modified:
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Side View
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The green button is a latching illuminated led switch. It acts as a "power" button. When pressed in, the green light comes on, the red LED on the side starts to blink, and the screen backlight on the Hallowing comes on. In the off state everything goes dark and the Hallowing switches to a simple loop in the sketch. Without access to the power button on the board, this isn't a true on/off switch and the battery eventually depletes.
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Back View
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The eye has two states, looking around/blinking and wide. Normally, the eye does it's own thing, but when you pull the trigger it opens wide and stares straight ahead. This was a fun approach because it gave the gadget a little life of its own through the autonomous looking around state.
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Front (Eye) views
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Note: The part on top of the gadget unscrews and slides back, exposing access to the USB input for charging.

Since the forum limits three images per post, I'll add a second part with the inner workings...

dirtyrob
 
Posts: 28
Joined: Mon Jun 25, 2012 8:46 pm

Re: What I made: Hallowing LOOKTRON

by dirtyrob on Thu Nov 01, 2018 4:39 pm

On the inside of the LOOKTRON, you can see the momentary roller switch, the illuminated pushbutton, the Hallowing assembly, and some odds and ends.
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Inside View
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The roller switch fit perfectly against the trigger lever and I cut a slit on the body of the gadget where it hung from the ground lead. I lucked out on how well it fit together. You can also see the latching power switch on the left. The white discs are wooden spacers I cut to wedge the switch into place.
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Trigger and Power Switchs
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The Hallowing was placed in a wooden assembly that fit into the barrel area of the nerf gun. I made good use of standoffs and the Adafruit lens & bracket to house the board/display. The opening on the back provided access to the FeatherWing sockets, which were easier to work with than the fang-shaped pads on the bottom in this particular application.
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Hallowing
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.... to be continued...

dirtyrob
 
Posts: 28
Joined: Mon Jun 25, 2012 8:46 pm

Re: What I made: Hallowing LOOKTRON

by dirtyrob on Thu Nov 01, 2018 4:54 pm

Here you can see how the FeatherWing sockets are accessed. A2-A5 correspond to the "fang" pads and there is a ground to the left.
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FeatherWing Access
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The completed assembly is below, minus the lens and lens holder that was included in the Adabox.
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Completed Assembly
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Finally here it is by the LOOKTRON. You can see the profile of the assembly and the lens/lens holder in this picture. Once connected, the assembly slides smartly into the channels that were originally used for the Nerf gun barrels. The wires are soldered into hooks and loops (then taped) so I can easily disassemble, if necessary.
20181030_225954.jpg
Assembly by Gadget
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This was a fun project and my son really enjoyed having a proper gadget. I'm looking forward to the next Adabox!

dirtyrob
 
Posts: 28
Joined: Mon Jun 25, 2012 8:46 pm

Re: What I made: Hallowing LOOKTRON

by adafruit_support_mike on Fri Nov 02, 2018 2:08 am

Oh, that is awesome! Thanks for posting the photos!

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Re: What I made: Hallowing LOOKTRON

by johnpark on Mon Nov 05, 2018 12:06 pm

This is a really great build! Excellent results, and nice write up, thank you.

johnpark
 
Posts: 369
Joined: Wed Mar 25, 2009 2:15 pm

Re: What I made: Hallowing LOOKTRON

by dirtyrob on Sat Nov 10, 2018 12:14 am

Thanks Mike and John. I appreciate the kudos and support!

-Rob

dirtyrob
 
Posts: 28
Joined: Mon Jun 25, 2012 8:46 pm

Re: What I made: Hallowing LOOKTRON

by johnpark on Sat Nov 10, 2018 11:13 am

I'm still marveling at how perfectly you got the HalloWing to fit into the front of the Nerf blaster!

johnpark
 
Posts: 369
Joined: Wed Mar 25, 2009 2:15 pm

Re: What I made: Hallowing LOOKTRON

by dirtyrob on Fri Nov 16, 2018 12:01 am

Haha. To be honest, I am too. Sometimes we just get lucky and it works out. :-)

-Rob

dirtyrob
 
Posts: 28
Joined: Mon Jun 25, 2012 8:46 pm

Please be positive and constructive with your questions and comments.