Raspberry Pi Zero Prism

Details

Hackaday Challenge 2017 Section

------------------------------------------------------------------------------------------------------------------------------------------------

Challenge the project addresses

Dangerous protesters and rioters with masks destroying property and harming others, without the thought of any consequences through there anonymity.

How will alleviate or solve the problem that the project addresses?

The theory of identifying a masked person in real time, reduces there chances of them causing a crime.

Discuss how the project might be world changing.

Reduces crime, inspire someone else to build a better live facial recognition api.

In theory its simple.

Add a Pi Noir V2 IR with either 680nm, 720nm, 850nm, 950mm Filter to see through the black masked material.

Use Facial Recognition API,depending on the API use facial search matching, gather info which is shown on the prism.

Besides that it can be used for other things as well.

Publish at least one (1) image illustrating how the project might be used. This may be a sketch, schematic, flow chart, rendering, or other type of image.

Git hub link added

------------------------------------------------------------------------------------------------------------------------------------------------

5/17/16

I'm assembling a low cost kit, also the prism will be a lot thinner, with the pcb instead of wires.

5/10/16 Im sold out of pre built prisms.

New Video of the Pi Prism Added new 16.5 x 38 DCX lens. With the Penta-prism the people facing you do not see the screen (mainly for privacy). Also I made the eyepiece bridge longer.

Blurry Picture taken with iphone (the screen is crispy clear irl)

OCR recognition demo above

older video of a Short demo of Pi Prism(with 14mm dia 20mm focal optics) with varying brightness sensor and prism.

Files

PiPrismV3.zip

Updated Pi Prism Design files

Zip Archive - 235.51 kB - 12/12/2016 at 21:27

Download

A2PiholderTopPlateHDMI.stl

updated piholder top plate for HDMI

Standard Tesselated Geometry - 806.68 kB - 11/18/2016 at 03:57

Download

A4FrontPiece.stl

Updated The Front piece Print File

Standard Tesselated Geometry - 781.35 kB - 11/18/2016 at 03:14

Download

PiPrismSTL_Code.zip

piprism 3d print files + code

Zip Archive - 154.81 kB - 11/09/2016 at 17:57

Download

Components

1 × Raspberry Pi3 for Quick Programming, and switching card into pi zero.

1 × PI NOIR Camera V2 or Pi Camera V2

1 × Silicon 30AWG wires (variety of colors is recommended)

1 × 20x SMD Tactile Pushbutton Key Switch Momentary Tact 2 Pins

1 × Raspberry Pi Zero v1.3 Camera Edition

Project Logs

Collapse

Captains Log #13
Ricardo Ferro • 05/02/2017 at 17:34 • 0 comments

Added some Masterpiece Artwork
Captains Log #12
Ricardo Ferro • 05/02/2017 at 17:05 • 0 comments

Added Pi Prism Core PCB to Git hub link included
Captains Log #11
Ricardo Ferro • 05/02/2017 at 06:24 • 0 comments

I changed the design of the PCB, next I'll label it and put some artwork on it.
Captains Log #10
Ricardo Ferro • 05/01/2017 at 01:19 • 0 comments

The designs still up for debate, the buttons will be moved to the side (soft tactile buttons). I will make a core pcb for the pi glass since finding the micro display varies for each person, currently I could shave a few mm off.
Captains log #9
Ricardo Ferro • 04/23/2017 at 20:07 • 0 comments

Currently drawing out a PCB design (a lot better than regular wires) resulting in a thinner pi glass.
Captains Log #7
Ricardo Ferro • 12/18/2016 at 20:45 • 1 comment

Updated and building another Pi Prism and I still have some experimental printed optical lens from form labs (just need to sand it with very fine grit ) also I will experiment with a smaller camera.
After that ill add another branch which the Prism will be built on the Chip Pro which is smaller than the pi zero. Most likely based on the specs i might have to order a chip module and design a board around it ( ;-;).
Captains log #6
Ricardo Ferro • 12/05/2016 at 18:46 • 0 comments

updated the front stl (below)
Below I reduced the prism holder bridge to further improve viability
Scrapped the flexible button bridge in favor for a pla-flexible joint (To move the prism out of field view). Also a new smaller button bridge.
Integrated cover into the Pi cover stl (instead having a seperate loose cover)
Update will be pushed in a few hours as PiPrismV2
Captains log #5
Ricardo Ferro • 12/05/2016 at 01:46 • 0 comments
Anyone that manages to connect a Bluetooth headset (microphone/speakers) to the Raspberry Pi post the stable solution below in the comments section. I wanted to use the bluetooth headphones for real time language translation to add on to the Pi Prism.
Here is some info I scraped up
- http://youness.net/raspberry-pi/bluetooth-headset-raspberry-pi
Captains log #5
Ricardo Ferro • 12/05/2016 at 01:12 • 0 comments

Bluetooth Headset Blue tooth Microphone doesn't work http://youness.net/raspberry-pi/bluetooth-headset-raspberry-pi
Bluetooth Keyboard/Mouse Combo
Bluetooth keyboard issue
Captains log #4
Ricardo Ferro • 11/24/2016 at 03:56 • 0 comments

experimenting with flexy filament for buttonholder bridge

View all 13 project logs

Build Instructions

Collapse

Step 1

here we have the Kopin 922k, we will extract the lcd module only.

Step 2

Unscrew the case the holds the microlcd

Step 3

Becareful not to damage the ribbon cable connected to the microLCD

Discussions

Martin Zwigl wrote 08/10/2021 at 16:54

Hello Ricardo
Thank you for putting in the effort. I am "reviving" this project for myself. I have small display that I am going to power with a LattePanda Alpha

Kind regards,
Martin aka PapaPimiento

Are you sure? yes | no

Martin Zwigl wrote 08/11/2021 at 15:42

As for the lense: would you be so kind as to tell me how far away from the display and/or the prism it is positioned?

Are you sure? yes | no

Yusuf BAYLAV wrote 02/15/2019 at 12:25

Hello Ricardo,

Any cheaper alternative for the display module? It is $200 in AliExpress. Could you provide a cheaper alternative?

Thanks.

Are you sure? yes | no

adam wrote 07/08/2018 at 17:12

what do you recommend as a cheaper lcd display?

Are you sure? yes | no

thomas.valade wrote 06/03/2018 at 18:30

Hey ! You made an excellent job ! I love your work :)

But do you think it's possible to use a screen like this ?

https://fr.aliexpress.com/item/2-0-inch-TFT-LCD-module-SPI-serial-interface-module-176-220-Minimum-occupancy-4-IO/32392376642.html?spm=a2g0w.search0104.3.1.3d985888OpsOsh&ws_ab_test=searchweb0_0,searchweb201602_2_10152_10151_10065_10344_10068_5722815_10342_10343_10340_5722915_10341_5722615_10696_10084_10083_10618_10305_10304_10307_10306_10302_5722715_10059_100031_10103_10624_10623_10622_5722515_10621_10620,searchweb201603_19,ppcSwitch_4&algo_expid=9d3ffd6f-ceac-443e-88e0-fae7b934d9cd-0&algo_pvid=9d3ffd6f-ceac-443e-88e0-fae7b934d9cd&priceBeautifyAB=0

Thanks !

Are you sure? yes | no

laneramsey123 wrote 05/13/2018 at 19:15

Hello,

Where specifically do you get all your components from? This would help me out a lot.

Are you sure? yes | no

Michael wrote 02/11/2018 at 21:33

Isn't the prism act like a mirror and mirroring the display? how did you not use a mirror to over come it?

the "My open source glass" project use a mirror with a prism

Are you sure? yes | no

Jdomville wrote 08/07/2017 at 20:33

I saw a comment on Thingiverse where you are selling the Pi Prism. Is there a link where I can check it out?

Jdomville@stny.rr.com

Thanks....

Are you sure? yes | no

craigm26 wrote 05/23/2017 at 23:44

Your components lists a Raspberry Pi 3 - isn't this for a Raspberry Pi Zero?

Also, this is perfectly laid out for what I was going to do. I'll copypasta for the use case of real-time closed captioning (google speech api - or Mycroft).

Also, with chromium, there's a new nugget for dev build for AR implementation: https://github.com/googlevr/chromium-webar

Are you sure? yes | no

anhtuan.manga wrote 05/13/2017 at 09:22

Can you give more detail about video module

Are you sure? yes | no

Morning.Star wrote 05/09/2017 at 16:22

Impressive work, really compact optics. Nice to see another wearables geek! ;-)

Are you sure? yes | no

ActualDragon wrote 11/17/2016 at 15:31

yeah, AWESOME project, it's a poorman's google glass.

Are you sure? yes | no

Ricardo Ferro wrote 11/17/2016 at 18:57

Thanks!!!!

Are you sure? yes | no

Michael wrote 11/17/2016 at 11:51

Very nice project.

Can you give more detail about the optics / prism, where to buy etc.

Do you think this monocular will fit also?

http://www.ebay.com/itm/MOY-Monocular-Head-glass-play-Micro-Display-Cyclops-One-Eye-QAV250-FPV-racing-/172250932723?hash=item281af4a5f3:g:v5YAAOSwnNBXa0LP

Are you sure? yes | no

Ricardo Ferro wrote 11/17/2016 at 18:57

Thank you!

The optics I used are from
http://www.edmundoptics.com/optics/optical-lenses/double-convex-dcx-spherical-singlet-lenses/15-19-9mm-experimental-quality-double-convex-dcx-singlet-lenses/3492/
its the 16.5 x 38mm FL, Grade 1, Double-Convex Lens
The Penta Prism i used are
http://www.ebay.com/itm/Prism-Quarton-Beam-Splitter-Penta-prism-10-1PCS-/282241559565?hash=item41b6e86c0d:g:BooAAOSwbYZXe39N
The monocular will fit but the optics FL may differ since the micro display size might be different. Just measure the focal length between the stock lens and the micro display.

Are you sure? yes | no

Raspberry Pi Zero Prism

Description

Details