Documentation of your first prototype-
Got face tracking to work with two servo motors!
Now I need to figure out how to use force pressure sensors to trigger the face detection.
Week 11 Final – Update
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Category Archives: Assignments
Week 10 Assignment -Final
- Refined project description
I’m creating an IoT device that recreates an interaction between my dog and I. I will create a doll model of my dog that sits on my desk (in New York). When my actual dog in Taiwan lies her head on her doll, the dog doll on my desk in NY will turn her head and follow my motion, mimicking just what she always does at home, lying beside me by the floor with her head laying on her doll animal while watching what I am doing. - Interaction/systems diagram
- Timeline with milestones
Week 11: 04/09–04/15- Design prototypes
- User testing
Week 12: 04/16–04/22
- Prototypes and Iterations
Week 13: 04/23–04/29
- Prototypes and Iterations
- Finalising and polishing the design
Week1 4: 04/30–05/07
- Polishing design
- Materials list
– Arduino x1
– Bread board x1
– Force pressure sensors x2
– Servo motor x2
– Jumper wires
– resistors 220ohm x2
– Fabric: felt, socks
– Cotton stuffing
– Basic sewing utilities
– Speaker
– MESH sensor blocks - Precedents or References
Petric’s Smart Bed- https://www.prnewswire.com/news-releases/petrics-worlds-first-smart-pet-bed-and-pet-health-ecosystem-named-2018-ces-innovation-awards-honoree-300555185.html
- https://www.petrics.com/
Twin Object
- http://www.creativeapplications.net/objects/twin-objects-devices-for-long-distance-relationships/
- https://vimeo.com/236594080
Lovebox Spinning Heart Messenger
- https://www.uncommongoods.com/product/lovebox-spinning-heart-messenger
- https://www.youtube.com/watch?v=UiNUNa1dFcs&feature=youtu.be
Long Distance Friendship Lamp
- https://www.uncommongoods.com/product/long-distance-friendship-lamp
- https://www.youtube.com/watch?v=peUnSFlH6Jk&feature=youtu.be
Pillow Talk
Fortune Teller (Week 13)
Goal: The goal of this project, to create the fortune teller using an arduino, thermal printer and capacitive sensor is still the same. The last time I posted I had achieve connecting the capacitive sensor and the printer into a single code. However, I still had no been able to figure out how to get the printer to print is accordance to when the capacity passes the 1000 point threshold, or in other words, when the capacity is touched. Ergo, for this past week my 3 major goals/ obstacles to overcome.
- Figure out how to have the printer read and print according to when the capacitive sensor is touched.
- Code the arduino to be able to read the capacity and give fortune according to different ranges in the capacity. For example; 1000-1499 (“The world is your oyster”) and also be able to code for if the capacity read is even or odd for another layer of fortune telling.
- Have the printer print the fortune.
Assembly: So I made two appointments (knowing that I probably wouldn’t complete this in one day) at the Learning Center. Originally I was trying to connect the printer to print in accordance to the push of a button, but Tubah and I had a lot of difficulties with the button so we jumped straight into using capacity. Eventually by the end of the session we got it connected. However, the printer was unable to print the correct symbols (we were testing with a barcode) matter of fact it was printing an infinite series of illegible symbols. So with task #1 taken off the list I had simultaneously created 3 more.
I was able to conclude from my experience with the Serial monitor that a possible cause of the symbol affliction was due to baud-rate and or Arduino syntax between softwareserial/ mySerial.begin and Serial.begin. I also would have to code a way to make the Arduino read the first number of capacity and then pause so that it wasn’t continuously printing fortunes for the milliseconds a participant may be touching the capacitor. Lastly, the serial monitor was no longer printing the read capacity. I wanted to be able to see the capacity change on the serial monitor so that I could make capacity ranges for fortunes.
- Find out how to get the printer and the Arduino speaking the same language.
- Code the arduino to be able to read the capacity and give fortune according to different ranges in the capacity.
- Code the Arduino to read only the first number of capacity past the threshold and then sleep.
- Get the serial monitor to print the capacity
- Have the printer print the fortune.
The following Monday I met with another tutor at the Learning Center, Aarati. She was amazing and helped me find the problems in my code. My intuition was right, the baudrate for the printer was changed from 9600 to 19200, which allowed the printer to be able to read the code and print correctly. Tangent from this, with small changes to the syntax of the code we were able to get the Arduino and the serial monitor to connect on the right level, thus presenting the capacity in the monitor. Lastly we even finished early enough to add in an “odd and even” if-else statement to the fortune code allowing for if the capacity if even an “evil fortune” if the capacity is odd a “nicer fortune.”
How it works:
This is intro code to how the Fortune Teller tells it fortune. By defining several specific ranges of capacity I am able to tell the printer to print an according fortune.
The ranges I have thus far:
Capacity >= 1999 — Fortune
Capacity >= 1750 — Fortune
Capacity >=1499 — Fortune
Capacity >=1250 — Fortune
Capacity >= 1000 — Fortune
Capacity == 666 — Fortune
Materials:
- A mini thermal receipt printer – with cables and plastic mounting shims
- A roll of 50′ long thermal receipt paper – the perfect amount for the thermal printer. BPA-free.
- 5V 2A power supply – an ideal supply for powering the thermal printer (and anything else that can use 5V power
- 2.1mm DC jack adapter – makes it easy to attach the power supply to the printer
- 6x MM jumper wires –
- 1x LED
- High Powered Resistor
My next step of this process is now to construct the the fortune Teller itself, solder a new clean board and clean the code up a little.
Some of my new goals are:
1) Find a way to add a text box around the code
2) Possibly make the presentation of the fortune a little more aesthetic
3) Build a nice sturdy stand to hold to box up right.
4) Make a robe and hand.
- Assembly:
- Plug in the GND (black) and VH (red) F wires into the printer
Cut off the open end of the Red and black wires to expose the metal inside.
Using the DC adaptor put in the exposed black and red end of the wires
Make sure they are oriented correctly
Plug in the GND (black), RX (yellow) and TX (Green) wires into the printer - Using the 3 MM jumper wires attach them to the open end of the GND, RX and TX cord.
- Insert the TX (green) wire into the digital ~5 pin of the Arduino
- Insert the RX (yellow) wire into the digital ~6 pin of the Arduino
- Insert the GND (black) wire into the GND (any of them) of the Arduino
- Highest Resistor (150.5K) ~4pin and ~8pin
- Power Cable LED ~7pin
- Ground Cable LED GND.
- Download the Thermal Printer Library
Change the baud rate from 19200 to 9600 by accessing the source code.
If your printer test page shows ‘BAUDRATE: 9600’, you’ll need to make a small change to the library source code.
Go into your computer files where the Thermal Printer Library is being stored and using a text editor (Notepad, etc.) open the file Adafruit_Thermal.cpp
Ctrl-F ‘BAUDRATE’ and change this line from 19200 to 9600.
Save and exit.
Week 11 – Xiaoyu & Weilin
We have tested several materials and components.
Input: Velostat (Pressure sensor) + conductive tape
Output: audios represented different moods
Chairs also have work hours. They are happy to assist you during work hours but they can also get crappy sometimes. They also preserve the right to refuse anyone when they are on a break.
Play Test: Fortune Teller (Week 12)
Goal: The next part of my prototype for my fortune teller was to get the Arduino thermal printer functioning and I did. With that being said the components of just the play-test for the thermal printer include;
- A mini thermal receipt printer – with cables and plastic mounting shims
- A roll of 50′ long thermal receipt paper – the perfect amount for the thermal printer. BPA-free.
- 5V 2A power supply – an ideal supply for powering the thermal printer (and anything else that can use 5V power
- 2.1mm DC jack adapter – makes it easy to attach the power supply to the printer
- 3x MM jumper wires
Assembling the thermal printer was a little challenging due to the site leaving out some essential pieces of information like how/where the F jumper cables for VH, GND, RX and TX are supposed to be oriented as well as the key instruction to strip the VH and GND wires to connect to the DC cable adaptor. However, lucky for me I had a friend who had experience with the Arduino thermal printer and was able to guide me through it.
Assembly:
- Plug in the GND (black) and VH (red) F wires into the printer
-
- Cut off the open end of the Red and black wires to expose the metal inside.
- Using the DC adaptor put in the exposed black and red end of the wires
-
- Make sure they are oriented correctly
- Plug in the GND (black), RX (yellow) and TX (Green) wires into the printer
- Using the 3 MM jumper wires attach them to the open end of the GND, RX and TX cord.
- Insert the TX (green) wire into the digital ~5 pin of the Arduino
- Insert the RX (yellow) wire into the digital ~6 pin of the Arduino
- Insert the GND (black) wire into the GND (any of them) of the Arduino
- Download the Thermal Printer Library
- Change the baud rate from 19200 to 9600 by accessing the source code.
-
- If your printer test page shows ‘BAUDRATE: 9600’, you’ll need to make a small change to the library source code.
- Go into your computer files where the Thermal Printer Library is being stored and using a text editor (Notepad, etc.) open the file Adafruit_Thermal.cpp
- Ctrl-F ‘BAUDRATE’ and change this line from 19200 to 9600.
- Save and exit.
Though since this code has components that conflict with my capacitive sensor code I needed to make some adjustments. I changed the RX (yellow) input pin from ~6 to ~3.
Problems/Issues: Originally when I did this (change the pin from ~6 to ~3) the LED light and the capacity was working however after I tested the printer the LED no longer responded to the capacitor. Though, as stated in the video, the LED light isn’t essential to the project it is still a sign that there might be a problem with the physical system itself. As of right now I am looking at ways to integrate the capacitive code into the thermal printer code, but as a novice in coding I’m not sure how to do this syntactically correct. I have an appointment Friday (4/20 lol.) with the Learning Center to help me over this part of the project.
Play-Test Feedback:
To think about:
- Who will you playtest with? I will playtest with anyone who is available and willing. There is not criteria or prerequisite that needs to be met by the participants.
- How will you get their consent? Their willingness to touch the capacitive sensor is all that is necessary.
- What feedback do you want? I want people to experience a mediocre serendipity. It’s the equivalent to a fortune cookie so I have kind of low expectations on their reactions.
- What questions will you ask? I will ask whether they enjoyed their fortune and if they have any ideas on how I could enhance the experience and output.
- What information do they need to know before starting? None.
- How much will you help them during the test? I will tell them to touch the pad.
- How will you debrief them? I will tell them that this is my final project for a class and that is it an interactive art piece.
Week 12 – Progress
I migrated to Adafruit esp8266 module. The server now is successfully connecting to my iphone hotspot, pinging random IP numbers and when it get a success response it sends a request to a Geolocation API online service which provides the IP Geolocation information as a string of data.
What is left for the project is to edit the json data the server receives so it can easily identify the latitude and longitude coordinates and to create a light feedback. I will also create a tower design for my server.
A second stage for the project will be to create a custom laser projector that moves the laser point according to the IP coordinates. For this stage my objective is to have the relevant information to communicate to the laser.
WEEK 12- Technical prototype- Carla Molins
1) Iteration
For this week’s progress, I’ve been figuring out the mechanism that will power my project.
Step 1: Achieve the base system of the moving plaque.
The Arduino and the stepper motor pull the pattern and release it again. This is a rough prototype to prove that works.
This video shows how the stepper motor turns pulling for several steps until it stops and it releases again.
The next step should be trying to get a more reliable and stable prototype.
2) Your playtesting plan and desired feedback.
I’m planning on keep testing the prototype while I’m upgrading each part on D12.
There is still a lot of work to do to be able to test how the main interaction works.
WEEK 11 – prototype v1 – Carla Molins
This week’s progress has been dedicated to explore materials and define the structure of the piece.
This deck shows a material/light exploration:
https://drive.google.com/file/d/1e-9NGO7eTLSqk6DuIXULpdP-2LseCJhs/view?usp=sharing
Week 4
a combination lock
Understanding the basic logic behind the digital combination lock was the main goal of this project. although it seemed hardcore tech for me at first, thinking it step by step made me realize how simple it is.
Using basic components like Led, 220 ohms resistors, buttons and 10K ohms resistors, breadboard, Arduino board, jumper wires. you can build your very own safe.
although I realized it required very basic logic, for some reason the lock could work once and stop responding after that, so I wouldn’t recommend putting your governmental papers in such a safe 🙂 so after failing hard I had to use a code from Alyssa: http://lizastark.com/physcomp/alyssas-combination-lock-week-4/ https://drive.google.com/file/d/1OlpTO_oNPYWVEbz0SmbbegJo1Oo0Lawy/view
here is some documentation starting with the failed trial and then after using Alyssa’s code:
Thanks Alyssa!
Week 10 + 11
WEEK 10
CONCEPT: in this project, I would like to explore the difference between analog and digital photography and represent these two mediums as a different-colored eye or (Heterochromia) for a photographer. having the passion for both and how that affects the way a photographer sees the world. Continue reading