# Wifi Power Strip

BE CAREFUL WHEN WORKING WITH 120V. IF YOU ARE NOT EXPERIENCED OR SUPERVISED BY A PRO, PLEASE ASK FOR SOME HELP. 120V HURTS!

## Step 1: HOW TO BUILD YOUR OWN WIFI POWER STRIP

I wanted to find a way to make my apartment smart without investing a lot of money. That’s why I have decided to make a wifi power strip that I can control over my phone. In this instructable, you will learn to build a wifi power strip and make any device smart while controlling it from your cellphone.

## Step 2: Supplies

Step 1 Get all of the materials in the list.

Power Strip

4 channel relay

Wifi arduino controller (ESP8266 ESP-12E NodeMCU Using Arduino IDE)

## Step 3: Dismantel the power strip.

Cut the metal gold strip between the plugs to separate the conection in order to control them independently.

## Step 4: Connections

This part is tricky. Be extra careful when plugin in to the wall.

First grab the in cable from the wall and add 4, 16 gage wires. Connect 4 wires to 3 plugs on the same side and 1 usb side.

Connect 4, 16 gage to the other side of the 3 plugs and the usb wire.

Connect those four wires to the relay slots. Use only the sides on the relay.

Connect 4 wires to the other side of the relay and then to the 16 gage wire that goes to the wall.

Finally connect the ground to the ground in the wire that goes to the wall.

## Step 5: Connecting to the ESP8266 ESP-12E NodeMCU Using Arduino IDE

Use the 5v to power the relay.

Use d1-d4 to control the relays.

Ground from the relay to ground from the wifi board.

All set!

# Harmonograph

Harmonograph

Mathematics has always been a riveting subject both conceptually and practically, for the longest time. On my way to practising design, I discovered an outlet into art based off of mathematics. We are going to make a ‘Harmonograph’ based on physical computing using an Arduino.

A “harmonograph” is a drawing machine that makes geometric patterns that are related to the frequencies of activity on (at least) two actuators. These can be made using rotating platters where the relative speed and direction of the multiple rotating platters controls the figure being drawn. Even a simple harmonograph as described can create ellipses, spirals, figure eights and other Lissajous figures.

Thankyou

# Motion Glass

In this project, I used PIR (A passive infrared sensor) motion sensor to calculate your shower time. This is connected to an Arduino Wifi board that is inside of a clear acrylic case. The duration of your shower will be measured based on your motion and the shower record will be stored Adafruit.io and notify you through your email/SMS/twitter account through the IFTTT.com. I have chosen to use SMS as my report method, but I can utilize many other options like. Instead of an Arduino Uno, I only used Arduino Wifi board called, adafruit HUZZAH ESP8266, to fit and run every component in this motion glass.

For this project, I had to set up the sequence to activate the timer and send the information to myself to remind me that I should save water by taking a shorter shower!

Here is link to my video: https://vimeo.com/195457060

Here is link to my instructable: http://www.instructables.com/id/Motion-Glass/

# Location-Food CLock

I created the location-food clock as a way to notify my mom about where I am and whether or not I have eaten the appropriate meals for the day. It uses the location from my smartphone and turns the clock hands to one of three positions: Home, School or Elsewhere. The hands of the clock have three lights accounting for the three meals of the day. Whenever I have a meal, I press a button on my phone (using the IFTTT app) and the appropriate lamp lights up. At the end of the day, if all three lights are on, my mom would be relieved and happy to know that I have had food throughout the day. At midnight (my local time), the lights would all turn off.

Here is a link to my instructable post.

# THE WORD CLOCK

This is my version of the WORD CLOCK that uses Neopixels and Real Time Clock Module.

It changes the time every 5 mins and shows different colors at different times of the day.

This is a simple yet elegant clock to gift to someone or have it on your desk.

It is extremely simple to make.

Checkout my Instructable

http://www.instructables.com/id/THE-WORD-CLOCK/

Thanks for stopping by!

Cheers!

#sowmyaiyer

# V+: an interactive climbing wall

If you have ever climbed or bouldered before, you know how much fun and addictive it is. With V+ I decided to add interaction through the use of LED lights which have been programmed to display different levels of climbing through the use of the Bluetooth LE Module from adafruit. Through the Adafruit Bluefruit LE Connect App, anyone can choose the level they wish to try. This first prototype of the wall is currently installed at the PoD Gallery at SVA, it will be up until January 10th 2017. Come visit!

For a peak into the making process for this prototype please visit the Instructable page. The process was long, but this was a super fun piece to make. From mold-making the holds, to doing the circuitry, it was worth the time and effort, specially now that I can climb it.

I am specially excited about finding a permanent place for the wall at PoD. Climbing is very fun, and good for taking a break and de-stress.

Thank you to my classmates and our awesome professor Becky Stern for a wonderful class this semester.

# Futuring Project : HYDRO SMS

#chrisrand

The Hydro-SMS is like a portable and personal sonar system. It is a transceiver that allows members of a group to pass correspondence through the water without electronic transmission or revealing their identity.

Here, an umbrella becomes the low-tech devise used to transmit and receive signals. Using an off-line phone in airplane mode, text messages are converted from the ones and zero’s of code to physical motions– in this case a solenoid striking a metal rod against a metal tip umbrella. The resulting percussive sound travels through the water as a modified version of Morse code. When an open umbrella is placed in the water to listen, the membrane and surface area senses and amplifies the sound like our inner ear. The phone again translates signal to code to text.

Looking back exactly a hundred years ago to 1916, the first widespread underwater sound detection system was developed and applied to the Anti-Submarine Division of the British Navy. It featured piezoelectric crystals to produce an active messaging system with ultrasonic frequencies and large listening sensors. Similarly, this project returns to the system of sending messages through the water but uses a personal and portable system called the Hydro-SMS Transceiver. As a Speculative Future project, imagine a time when our data flow, spoken conversations, physical interactions are closely monitored by AI and used against us without consent. Agents of opposition would rely on subversive devices that can be used off-line to secretly communicate. HAPPY CENTENNIAL !

VIDEO PROCESS: storyboard and gear

FABRICATION PROCESS : selected images from my Instructable post

Above- cutting apart the post.

Below- testing the percussive tap on the umbrella tip.

Above- hacking brass tube to make a mounting bracket for the solenoid.

Below- the final Arduino circuity.

FUTURE  DEVELOPMENT :

I would continue working on the listening portion of the transceiver using piezo sensors mounted to the umbrella and write the Arduino code to ‘listen’ and translate the taps. The app and UI also needs to be built and able to function in airplane mode.

There have been major advancements in piezoelectric technology (PI CERAMIC company’s ultrasonic sensors, actuators, and sonar systems) that could replace the mechanical solenoid and it’s power hungry 12-24 volt requirements. This would allow for percussive signals used now to be broadcast extremely rapidly and over long distances possibly using the same power that supplies the Arduino board.

Overall, this was a NEW venture for me on so many fronts– a super exciting process and satisfying outcome !

Chris  -•-•  ••••  •-•  ••  •••