Interactive crossword becomes the center of attention in a Museum

Maker Robert Mordzon built a huge interactive crossword for “Anything Goes” exhibition at National Museum in Warsaw.
“Anything Goes” is a very special exhibition because it was created by children. A group of 69 children, ages 6–14, were divided into six teams. They were preparing the main temporary exhibition at the museum’s building in Warsaw. Over six months, the participants got to know the Museum and worked on the task during weekly 4-hour meetings.  


Arduino_children

This Crossword is located in the middle of this exhibition. It is almost 6 meters (20”) long and 2 (7”) meters wide. The tabletop has 130 custom made electronic modules. Each one consists of the Arduino Nano, RFID reader RC522, 16 WS2812B LEDs and a custom made PBB. 


Arduino_Crossword_Idea



ArduinoNano_Crossword



Arduino_Huge_Crossword


The table is able to recognize letters’ positions and match LED lighting accordingly: when the letter is in a right position in a hidden word, then LEDs are green; in a wrong position - LEDs are red. After the whole word is completed, LEDs play colorful animation. This moment is synchronized with PC software (by RS-232) which displays video presentation on the wall, this way, audience can see the graphic visualization of each word.  When the crossword is completed, the whole table is “dancing” disco. 


Arduino_Crossword_Animation



Arduino_Crossword_Children



Arduino_Crossword_Action


The interactive tabletop is made out of Plexiglass. It consist of two parts, each is around 2.5 m x 1.3 m and was designed in Fusion 360 and then laser cut. All Arduinos all connected together by I2C interface. The controller is based on the Arduino Mega 2560 and control software and can manage all of the boards. There are also 4 power supplies, and the whole crossword has 750W LEDs. The body of the table is made out of wood. The whole crossword was built amazingly quickly, only within 30 days.   
Author said that he preferred Arduino boards for his project, because it was a safe solution for him with a guaranteed result.  We are happy to see that many makers around the world think this way and chose Arduino! 

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