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biglid - big led interactive display - interactive display
The large LED interactive display is an interactive real-time LED matrix display equipped with Microsoft Kinect sensors.
The project was produced by Luis Carlos, Ricardo Alves and alderick negrell.
Take a look at the promotional video: The design is to fit the size of the organic glass plates because they are large and we have to choose a light aluminum frame to reduce the weight.
The interior mesh is built with very light PVC.
List of materials :-
1 organic glass plate for font panel 2030x1250x3mm-80 euros-
1 aluminum/PVC/aluminum stack (Debond )2030x1250x3mm -70 euros-
PVC board for matrix grid-3000x2000x3mm -100 euros-
1 piece of foam-carbonate -30 euros-
20x40mm aluminum profile-
4 units, 198 cm per unit-50 euros-
4 custom metal corner brackets-15 euros-
Waterproof APA102 LED light strip 2065 Led-990 euros-
2x5 V 350 W power supply-60 euros-
M5 nut-100 sets5 euros-
100 Screws for Screws x10-10 euros-
20-meter wire5 euros-
2-unit USB cable with FTDI Chip-80 euros-
Microsoft Kinect sensor
Total cost of 150 euro materials: List of 1640 euro tools :-
Hand drill and 6mm bit (
For punching on the back cover of plexiglass and aluminum)-
Soldering iron (
Welding led light bars)-
Solder wire-Hot glue gun (
For isolating and gluing led light strips)-
Aluminum profile saw knife (
Cut aluminum bar)-Screw driver -Silicone glue -Pencil -
The frame consists of the rear panel, the front panel and the aluminum profile frame.
The aluminum profile frame is made of 20x40mm and 4 custom angle brackets.
The dimensions of the two vertical aluminum profiles are 124 cm each.
The size of the two horizontal aluminum profiles is 198 cm each.
Corner brackets that bend the shape 90 degrees 300x40x3mm steel. Explanation :-
Cut 2 vertical aluminum profiles into length using a saw cutter-
Insert the nut into the profile groove of the aluminum slot in order to connect the front panel and back panel as well as the angle bracket. -
Screw the angle bracket in place to make sure the screws are tightened.
The back panel cover is made of aluminum film bonded to PVC, and the actual layout is aluminum/PVC/aluminum.
The spacing of the paper used is 125x203 cm. Explanation :-
Cut Paper according to size 2030x1250-
Make 6mm holes in the perimeter of the paper to allow the screw to rot.
These holes will allow the plate to be fixed on the aluminum frame profile. -
Keep protective plastic before the end of the build. (
This can avoid unnecessary scratches)Instructions: -
Use the M5x 10mm screw to place the rear panel at the top of the aluminum frame profile and align and screw the panel in place. -
Loosen the screws from the aluminum angle bracket if necessary to allow any misplacement of the aluminum frame.
Before the LED light bar enters the shell, a bubble-like Poly
The carbonate sheet must be marked with 3. 3 cm square grid. Instructions:-
Mark a 3 with a pencil and ruler.
3 cm square grids on 1980x1210 cm.
A total of 59 columns and 35 rows. -
In order to make room for cable management, please do not put one line at the top.
Now that the grid is marked on the white panel, we can now stick the led strip to the surface. Instructions: -
Cut 59 35 LEDs with scissors. -
Position and align the center of the LED with the center of the marked square. -
Using silicone glue, stick the LED to the alveolar foam polycarbonate sheet. -
During the glue coating process, make sure that all LEDs are aligned with each other at latitude and longitude.
The total matrix is actually divided into two matrices, one with a total of 29 columns and the other with 30 columns.
This is done because in order to achieve a high refresh rate in the case of 30 FPS per matrix, M1 is 30 FPS and m2 is 30 FPS. Instructions: -
There are 4 connectors in the LED light strip (
Ground, 5 v, signal and clock)
, Using a diagram with M1 (red)and M2 (green)
Weld 4 wires together, signal to signal, ground to ground, 5 v to 5 v, and finally clock to clock. -
We used some hot glue to isolate the welding parts and make sure to isolate the welding. -
Keep the wires as short as possible to minimize EMF noise interference and signal attenuation.
Now that the led is in place, we need to build a square case of about 3. 3cm height.
This was done using 3mm PCV sheets. Instructions: -
Cut 58 stripes of 1980x33x3mm and 35 stripes of 1200x33x3mm using a laser cutting machine
These stripes need to be cut in the way you wish to connect with each other.
You can do this by using a CNC or laser cutter.
We do it by hand :)
Experience once in a lifetime, never repeat :)-
Assemble the mesh and place it on the top of the LED, in order to minimize the back, we have to remove the water protection from the LEDlight bleeding.
The front plexiglass is light frost. Instructions: -
Cut the paper to 2030x1250x3mm-
Make 6mm holes on the paper border to secure the frame using screws and washers. -
Be careful not to scratch the surface as this will be the front of the screen.
Note: we should choose a darker color. The color we choose is a little transparent to our taste.
2065 LED requires a lot of power, use 2-
5 v 350 W power supply.
The power supply is routed using common ground and symmetrical color power outlet wiring.
One of the power supplies the M1 matrix and the second power supplies the M2 matrix.
Make sure the peak 70A uses high specification wires.
The housing of the power supply is located on the back of the display and we used leftovers from the aluminum profiles to make the housing.
The power supply is glued to the back panel of the power supply housing using very strong double sided tape.
The matrix drives the LED directly to form the computer using 2 USB cables.
Features: USB ft32h cable features: USB hi-based on single chip-
Usb 2 speed ft32h device. 0 Hi-Speed (
480 bits/second)
And full speed (12 bits/second)
Compatible entire USB protocol for on-chip processing-no USB-
Specific firmware programming requires a usb Type A connector for direct connection to a usb host or to the data rate of the USB transmission of the USB bus poweredAsynchronous USB, 12 m 1 or 2 stop bits and odd/even numbers/tags/spaces/no auxiliary hardware or X-support up to 7 or 8 data bits-On / X-
Turn off software handshake send and receive led 1 k byte receive and send buffer for high data throughput adjustable receive buffer timeout support USB pause and resume work and USB pause current low USB bandwidth consumption
The operating temperature range from 40 °C to 85 °C can extend to 1. 8 m (6 feet)
To program the Kinect sensor, you need to install Kinect for the Windows Developer Toolkit v1.
8 when using kinect operation on the computer, make sure that the Kinect transformer is plugged into the wall socket. OpenCV (
Open source computer vision Library)
It is an open source library of computer vision and machine learning software.
OpenCV was built to provide a common infrastructure for computer vision applications and to speed up the use of machine perception in commercial products. Being a BSD-
OpenCV is a licensed product that allows businesses to easily use and modify code. [
And install opencv3.
Here: BigLID's software was developed using Visual studio 2013 using C.
You can download the: BigLID project folder zip file here.
The source file tree is as follows: Ball. cppBigLID.
The main function is hereGameObject. cppKinect. cppPaddle. cppstdafx.
Cptables are the necessary steps to run the demo you see in the video: 1-
Connect the Kinect sensor to the computer 2-
Connect 2 ft32h USB cables 3-
Turn on 2 power supplies 4-
Run the BigLID exe file.
The app will be launched by connecting to the Kinect sensor and finding 2 USB ft32h cables.
Once these connections are established, the application will start.
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