Halloween Trick Part01 – 👻

Using Helium balloons and an iron wire skeleton, Hadar Ben-Zur and I we will create a floating ghost. 
The hands – attached to the skeleton with two servo motors – will function as sails navigating it around the room, using two fans at each side of the ghost as engines to trigger movement. 
1 skeleton made of iron wire
~5 Helium balloons (?)
1 sheet of fabric/nylon
Moving eyes / LED eyes

2 Fans

2 servo motors
A few blue LED’s inside (?)

Automated Xylophone – Part 1

In continuation of examination of the arduino’s inputs and outputs I’ve decided to pick a musical instrument to focus on in this weeks assignment.

The Xylophone is a musical instrument that I thought would be a good Idea to visualize – It already has a good feedback to it, its a percussion instrument!

The first step was to visualize the idea on pen and paper, sketching some ideas.


After getting a rough shape of the interactivity, I started modeling the first module on a CAD program – a wooden stripe inlaid with LED for each note.

  1. The first functionality will indicate each note as its being hit.
  2. The second functionality will pick a random note to be played following the note previously hit. 

I started fabricating the stripe from wood, drilled and wired all the LED in their place.

I used Piezo microphones attached to each note to allow an analog input to the arduino, processing and sending signals to the LED’s.

I had some trial and error connecting the mic to the metal notes. In the beginning, i used blue tape to attach the parts, which wasn’t a good decision. the tape muted most of the sound of the note. I then used another tape which was better but the second one was conductive and short circuited the piezo mic. At last, I used two sided tape to attach the mics, the sound is better, yet not 100%, but its the best solution between the three, and the most elegant one.   

I labled every input and output and connected each module to the arduino VIA a dedicated breadboard.



First MVP:

Public observation – The Highline

For this assignment I’ve chosen to observe the High Line park. The High Line is a 1.45-mile-long (2.33 km) elevated linear park, greenway and rail trail. It was created on a former New York Central Railroad spur on the west side of Manhattan (between 12th street and 34th street). The park is built on the disused southern viaduct section of a New York Central Railroad line called the West Side Line. Repurposing of the railway into an urban park began in 2006, with the last section leading to Tenth Avenue and 30th Street to open by 2018 once the first phase of the Hudson Yards Redevelopment Project is complete.

The park’s attractions include naturalized plantings that are inspired by the landscape that grew on the disused tracks, views of the city and the Hudson River and various art installations that are scattered across the park.

The abandoned railway has been redesigned as a “living system” that draws from multiple disciplines including landscape architecture, urban design, and ecology. These enable a quick green getaway amidst the manhattan lower west side concrete and glass buildings.

For it’s visitors, the High Line serves as an escape from the regular sights and sounds of the city by elevating them to a bird’s eye view of the street and neighboring buildings. Unlike other parks in the city, I find the High Line special for its intricate mix between nature and the surrounding city. 

In this current observation I visited the High Line at 2pm on a Monday. I managed to identify locals on their lunch breaks, lots of tourists – an assembly of humans enjoying the mixture between the city sights and the feeling of a green oasis within the noisy city. the average amount of time people come to visit ranges between 10-20 minutes and hours (it takes about 30 minutes to walk from end to end).

There are multiple entry points to the park (12 to be exact), Visitors need to climb up a staircase or take an elevator to reach the High Line’s level.

I started my observation in the 14th street entrance.There are 2 main ways which a visitor can enter the park, via a case of stairs or an elevator. there are 44 stairs to climb which take approximately 40 seconds, the elevator ride is also 40 seconds. I placed a camera on the street level to measure how many people take the stairs vs. the elevator.

Almost four times the amount of people chose to climb the stairs over taking the elevator.

The park has a lot of different attractions that could be experienced while walking around, some main ones are:

  • A pathway between West 14th and West 15th Streets, is flanked by lounge chairs and a water feature that offers visitors a chance to dip their toes during the spring and summer. I’ve found this part of the park surprisingly refreshing as a lot of the visitors actually took their shoes off and dipped their feet in the water. For those who did not want to take their shoes off, the sound of the flowing water creates a calming atmosphere. There were alot of children playing in the water and it was hard to find a spot in the seats across the water.  

  • 10th Avenue Square and Overlook – As part of the High Line’s conversion to a public space, many of the structure’s steel beams were removed from this unique space where the High Line crosses 10th Avenue, creating an amphitheater-like space with views up 10th Avenue to the north and views of the Hudson River and the Statue of Liberty to the south. Even though the view is stunning, most of the people that sat there were tourists that took photos of the street, it was a hot day and the sun made it difficult to stay there for long. Across from there was a corner with trees and benches that seemed more occupied by locals and tourists alike that found a hideout from the sun.

  • Faucets are distributed across the park, and serve cold water. People stop and fill their water bottles and drink from the faucets. I have found that those that have shade are more in use than those without.


  • The High Line’s only lawn stretches for an entire block north of West 22nd Street. Anchored on the southern end with seating steps made of reclaimed teak, the Lawn is a popular spot for picnics and the site for many of the park’s summer programs. Shade was a rare commodity here, with a quick look you could see most of the lawn was cleared from people because of the sun.

When thinking about architecture and urban planning, these are two domains that their main objective is humans and their wellbeing. Designing a park, a place where people come to interact with nature, is a task that occupies a wide variety of fields and responsibilities. I think that the designers, urban planners and gardeners did an amazing job. an example of this is the right answers to the right questions in terms of maintaining a strong visual connection between the past and the present, the city and nature and overall experience of visitors in the park. the close, almost violent proximity of the city to nature and the rapid gradients from one to another.

One thing was missing for me when walking the park, it seemed like there was not enough shade for visitors in places it mattered the most, lookout points and faucets, among other places.

In the end of the park, close to 10th street, there is this large mural on the opposite side of the building, which kind of connects you to the geographical past of the park, which to me serves the point for human centered design.



Simple application for switches and LED circuit

For this week’s lab circuits building I focused on 3 basic circuits:

  • LED connected to a power source

Similar to the lab example, I used an arduino to power the breadboard, connected the LED to a resistor and closed a circuit.

  • LED connected to a power source and controlled by a potentiometer

Similar to the lab example, I used an arduino to power the breadboard, connected the LED to a resistor and closed a circuit. I added a potentiometer to control the voltage that the LED receives. 


  • LED connected to a power source and controlled by a LDR (light dependent resistor)

Similar to the potentiometer example before this one, I used an arduino to power the breadboard, connected the LED to a resistor and closed a circuit. I added a LDR to control the voltage that the LED receives. once the circuit worked I built a small wood box to hold the two components together.

For the next itteration of this projects I’d like to invert the LDR sensor so it would light in the dark as opposed to light when bright.



What is Interaction?

Trying to define the meaning of interactivity could be tricky, as Chris Crawford states in his book, the art of interaction design. If we broaden the way we think about the act of defining we might find that it is in itself an interactive mechanism that has different meanings in different cultures throughout time and place, thus meaning language is in itself interactive(?)

My stand on the definition of the word interaction is that it is something that’s also happening without the participation of the language that measures it, it could easily be described as the constant occurrence of cause and effect.

If we think of it, interactivity is happening everywhere all the time. In physics, interaction is attributed as interoperability between two bodies or the force that two bodies exert on each other. Under Newton’s Third Law, these forces are always of equal size and contrast in their direction. Thus forces in nature always appear in pairs.

We might look at interaction as a constant in the world, with technology being it’s multiplier that accelerates and mediates between the different bodies. In many aspects, we might guess a ‘good interaction’ will be a harmonic one, an act that helps two bodies encounter each other with ease other than collide in an explosion.

But that is just a loose definition of the word ‘good’.


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