Perhaps, you won't think of a feathers, a herb, or a bunch of flowers, etc., you can use something, put it in such a frame, you will be surprised, this object actually starts "moving", and It seems very elegant "slow motion". This is the "Slow Dance" project of the cross-border technology artist Jeff Liberman. The appearance of the project has attracted a large number of "imitigo", of which the most famous is a Singapore Tindie netizen based on the Arduino Nano development board module. "Mountain" "Slow Dance", named "Slomo (Slow Motion"!
In fact, "Slow Dance" principle is simple. By flashing 80 times per second, your eyes can even see how they are flashing, flashing with high speed vibration with objects (feathers, branches, flowers, etc.) If the vibration speed is bitten or slower than the flash, you will get a slow motion effect, and the speed is proportional to the shooting. If the object vibrates the same speed as the flash, the object will appear to be. If the beat frequency is high, you may see a random jumping vibrating object. This is a phenomenon called sustained visual, similar to the working mode of TV - frozen images by fast flashing, so that we will treat it as a continuous movement.
For "Slomo" project, although it is the project of the "Slow Dance" of the cottage, the equipment components used are all the parts that can be used, and there is no need to customize, and compared to the large size of "Slow Dance". " Slomo "The" small and beautiful "pursued by this project, so use a small Arduino nano development board, the entire DIY kit. Be
The entire SLOMO framework basic kit is as follows:
1 x Naked JF SLOMO Frame PCB
1 power outlet
1 right point button switch
1 x 3300uf 16V electrolytic capacitor
2 x 12K ohm 1/4 W resistance
2 x 330 ohm 1/4 W resistance
2 x in4004 diode
2 x N channel MOSFET 60V 30A
2 x 50K ohm potentiometer
2 x 15 Pin straight female
Note: Does not include Arduino NANO / Compatible Microcontrollers.
Step 1: Create a board
Like most of our projects, we will use our favorite Arduino nano board due to its compact shape and ease of use.
The schematic diagram of our project can be found above. We use the "Slow Dance" project allocation allocation, but we are using different components to build our circuit and have some minor differences. Be
,
Notice:
The following should be followed during the PCB assembly:
Make sure the direction of the capacitor, 2 MOSFETs and Arduino NANOs are correct.
Make sure that all components are welded to the top side of the PCB, except for two potentiors, the button switch and the capacitor will be soldered to the BOTTOM side of the PCB.
Step 2: Electromagnetic iron assembly
Since the electromagnet used by "Slow Dance" is not suitable for relatively small physical "SLOMO" photo frame, if the self-definition of the right electromagnet, the time is laborious, but fortunately, the online can be bought, but the price is not cheap, Our project, we also hope to attach the target object to both ends. Thus, we use a U-shaped picture plate metal clip made of a spring steel. As shown below:
This bent U-shaped metal has a metal average thickness of about 0.5 mm, and the electromagnet magnet is fixed thereon, and the suitable neodymium magnet is fixed at one end of the U-metal sheet. As shown below:
Step 3: Build the back seat
For the equipment used to build the rear seat, the netizen uses the IKEA Ribba framework, and the specific size is as follows:
Step 4. Install the PCB module in the rear seat
As shown below:
It should be noted that the metal fixing nuts of the two 50K ohm potentiometers are not in contact with any Arduino nano pin after being fixed in place.
Step 5: Prepare the photo frame
The main steps of the preparation frame are:
Modify the front end of the cardboard and raise the window opening.
A 2mm diameter hole is drilled in the frame to secure the electromagnetic stent base.
Dia diamonds three 2mm diameter holes behind the frame for fixing the flange screw in place.
Use the LED strip to arrange the side and top of the inner frame.
The previous cardboard mounting rack needs to be modified in order to hide the electromagnet when viewed from the previous observation. The bottom of the window needs to be 41mm from the base. This is achieved by cutting the top, using a tape to connect it to the bottom of the front end seat. Be
Since our framework is made of MDF board, it is best to drill a smaller diameter conductor hole, and then nail the self-tapping screw into it. You will need a hole for self-tapping screws to secure the electromagnet support base to the frame. Make sure that the U-shaped spring steel plate does not encounter any surface when vibration during operation.
Another three guiding holes are required after the framework for flange self-tapping screws to secure the rear seat.
We use warm white double-row LED light DC 12V, SMD 5050 LED, 120 LEDs per meter. Because our framework is not large, we only need a short LED lamp with a length of 0.56 meters. You can try other LED lamps, you can get your hand. In essence, you can find the brightest LED strip with the price you are willing to pay for this project. If you want a brighter flash, our depth of our frame should be able to accommodate the three rows of LEDs. If you plan to place the frame under bright light, you should make the illusion of slow motion.
As shown below:
Step 6: ARDUINO development board script write
The Arduino code structure of our SLOMO framework is based on the "Slow Dance project is loose.
"The Slow Dance project uses the Atmega PWM register directly to change the frequency and duty cycle of the PWM signal to control electromagnets and LED lamps.
You can visit: https://www.ardeno.cc/en/tutorial/secretsofardui
If you are interested in learning how to use the Atmega PWM register directly.
For our project, you don't have to use the Atmega PWM register to change the frequency and duty cycle of the PWM signal, we will use the Arduino PWM frequency library created by the runner-up. For more information about this library, please visit this topic on the Arduino Forum: http://forum.Arduino.cc/index.php/topic ,117425.0.html
Finally, upload the program to your Arduino NANO / compatible microcontroller board.
Step 7: Final SLOMO frame assembly
Here, we will try to put all things together and make the final assembly.
We need to weld the wires on the electromagnet to the holes marked with the PCB of "EM". We also need to store approximately 22 cm 2 wires (red and black) to the PCB labeled "light" terminals.
Step 8: Last debugging and improvement
We will need a 12V DC adapter to power our Slomo framework. For our project, we used a project with a rated value of 12V DC, 1.5A. If you use different parts or components in your project, you need to use a suitable power source.
Insert the 12V DC adapter and power the frame.
If everything is in place, sit down, being placed in the super realistic dance of the lightweight object in the frame.
We know that when someone is around 80 Hz, the electromagnet vibrates, producing a buzz. This squeezed voice does exist, but if you exceed 3 feet away, it is very small, it can't hear it. For those who have copied this project, this may be one of you can seek one of the fields of improvement to reduce humble, if this is your attention.
We pasted a non-slip rubber pad at the bottom of the frame, used to buffer, which allowed our SLOMO frame to be placed on the table significantly reduced the buzz.
If you want to place the SLOMO frame on a flat surface, you may also need to create a larger base to connect to the frame to achieve better stability.
Of course, if domestic small friends want to buy related raw materials and components, visit: JF Slomo store
Original link: https://www.eeboard.com/news/slomo/
Search for the panel network, pay attention, daily update development board, intelligent hardware, open source hardware, activity and other information can make you master. Recommended attention!
[WeChat scanning picture can be directly paid]
Technology early know:
Heavy pound: CCTV sent a death notice to LeTV - replication, collapse
The era of sex robot comes: such a smart "inflatable doll". Old man see
This battery is huge, actually allowing 75,000 families for one day.
Because of the border problem, India hits China Mobile Shop? Tell you all the fake!
The inside of the earth has hidden "generators"? You can't know these truths.
Our other product:
