GMU:Dataflow/Jam session/Ayla Güney

2017-04-23T21:07:32Z

Ayla:

File:Move servo to firebase data.txt

2017-04-23T21:07:05Z

Ayla: File uploaded with MsUpload

File uploaded with MsUpload

File:Servo motor and receiving site Steckplatine.jpg

2017-04-23T20:58:10Z

Ayla: File uploaded with MsUpload

File uploaded with MsUpload

GMU:Dataflow/Jam session/Ayla Güney

2017-04-23T20:57:38Z

Ayla:

GMU:Dataflow/Jam session/Ayla Güney

2017-04-23T20:55:52Z

Ayla:

'==''SLIGHT MOVEMENT'=='''
An unremarkable continuous event in public space caused by passing
cars in Weimar triggers an equal- ly mundane event in the exhibition
space in Berlin. A distance sensor sends measurements of slight movements over the Internet while a servo motor translates these measurements back into another type of movement.

==Technical aspects==

'''technical setup'''

a) 2 microcontrollers with wifi (2 x mini USB, 2 x Powerbank (5V), jumperwire, 330 ohm + 470 ohm resistors)
b) distance sensor (hardware + software)
c) servo motor (hardware + software)
d)web-hoster for data transfer

a) There are several possibilities for microcontrollers. Instead of using a expansive arduino wifi module I decided to go first with a SIM 800L ([http://www.ayomaonline.com/programming/quickstart-sim800-sim800l-with-arduino/]) as I was coming across with hardware failures of that module, I decided to try out WEMOS D1 mini ([https://www.wemos.cc/product/d1-mini-pro.html#]). This module has great functions as you can directly hook up sensors on it (but also you can do a lot of different stuff with it, see here:[https://www.youtube.com/watch?v=G73fiaOpUAc]). The great thing about them is that they are easy to use because you can work with the Arduino IDE on it, they are small, they come with wifi (ESP 8266 chip) and they are cheap (check out aliexpress.com).
So I used two of these modules: One on the sensing and one on the retrieving site.

b)
microcontroller 1 was connected with the Hc-Sr04 distance sensor ([http://www.micropik.com/PDF/HCSR04.pdf]). It was meassuring the movement of the metal plate that was created whenever there was a car passing by. The code below contains already the hosting information for the data transfer. More information on that under e)

Hardware
[[File:distance sensor and code_Steckplatine.jpg|400px]]

arduino code:
[[:File:Sending Distance Sensor Meassurements.txt]]

GMU:Dataflow/Jam session/Ayla Güney

2017-04-23T20:54:30Z

Ayla:

'''==SLIGHT MOVEMENT=='''
An unremarkable continuous event in public space caused by passing
cars in Weimar triggers an equal- ly mundane event in the exhibition
space in Berlin. A distance sensor sends measurements of slight mo-
vements over the Internet while a servo motor trans- lates these
measurements back into another type of movement.

==Technical aspects==

'''technical setup'''

a) 2 microcontrollers with wifi (2 x mini USB, 2 x Powerbank (5V), jumperwire, 330 ohm + 470 ohm resistors)
b) distance sensor (hardware + software)
c) servo motor (hardware + software)
d)web-hoster for data transfer

a) There are several possibilities for microcontrollers. Instead of using a expansive arduino wifi module I decided to go first with a SIM 800L ([http://www.ayomaonline.com/programming/quickstart-sim800-sim800l-with-arduino/]) as I was coming across with hardware failures of that module, I decided to try out WEMOS D1 mini ([https://www.wemos.cc/product/d1-mini-pro.html#]). This module has great functions as you can directly hook up sensors on it (but also you can do a lot of different stuff with it, see here:[https://www.youtube.com/watch?v=G73fiaOpUAc]). The great thing about them is that they are easy to use because you can work with the Arduino IDE on it, they are small, they come with wifi (ESP 8266 chip) and they are cheap (check out aliexpress.com).
So I used two of these modules: One on the sensing and one on the retrieving site.

b)
microcontroller 1 was connected with the Hc-Sr04 distance sensor ([http://www.micropik.com/PDF/HCSR04.pdf]). It was meassuring the movement of the metal plate that was created whenever there was a car passing by. The code below contains already the hosting information for the data transfer. More information on that under e)

Hardware
[[File:distance sensor and code_Steckplatine.jpg|400px]]

arduino code:
[[:File:Sending Distance Sensor Meassurements.txt]]

GMU:Dataflow/Jam session/Ayla Güney

2017-04-23T20:52:49Z

Ayla:

An unremarkable continuous event in public space caused by passing
cars in Weimar triggers an equal- ly mundane event in the exhibition
space in Berlin. A distance sensor sends measurements of slight mo-
vements over the Internet while a servo motor trans- lates these
measurements back into another type of movement.

==Technical aspects==

'''Hardware'''

a) 2 microcontrollers with wifi (2 x mini USB, 2 x Powerbank (5V), jumperwire, 330 ohm + 470 ohm resistors)
b) distance sensor
c) servo motor

Software
d) Codes for distance sensor and servo motor
e) web-hoster for data transfer

a) There are several possibilities for microcontrollers. Instead of using a expansive arduino wifi module I decided to go first with a SIM 800L ([http://www.ayomaonline.com/programming/quickstart-sim800-sim800l-with-arduino/]) as I was coming across with hardware failures of that module, I decided to try out WEMOS D1 mini ([https://www.wemos.cc/product/d1-mini-pro.html#]). This module has great functions as you can directly hook up sensors on it (but also you can do a lot of different stuff with it, see here:[https://www.youtube.com/watch?v=G73fiaOpUAc]). The great thing about them is that they are easy to use because you can work with the Arduino IDE on it, they are small, they come with wifi (ESP 8266 chip) and they are cheap (check out aliexpress.com).
So I used two of these modules: One on the sensing and one on the retrieving site.

b)
microcontroller 1 was connected with the Hc-Sr04 distance sensor ([http://www.micropik.com/PDF/HCSR04.pdf]). It was meassuring the movement of the metal plate that was created whenever there was a car passing by. The code below contains already the hosting information for the data transfer. More information on that under e)

Hardware
[[File:distance sensor and code_Steckplatine.jpg|400px]]

arduino code:
[[:File:Sending Distance Sensor Meassurements.txt]]

File:Sending Distance Sensor Meassurements.txt

2017-04-23T20:50:18Z

Ayla: Ayla uploaded a new version of File:Sending Distance Sensor Meassurements.txt

File uploaded with MsUpload

GMU:Dataflow/Jam session/Ayla Güney

2017-04-23T20:49:31Z

Ayla:

File:Sending Distance Sensor Meassurements.txt

2017-04-23T20:49:19Z

Ayla: File uploaded with MsUpload

File uploaded with MsUpload

GMU:Dataflow/Jam session/Ayla Güney

2017-04-23T20:48:32Z

Ayla:

GMU:Dataflow/Jam session/Ayla Güney

2017-04-23T20:44:20Z

Ayla:

GMU:Dataflow/Jam session/Ayla Güney

2017-04-23T20:41:17Z

Ayla:

(new text)

'''Technical aspects'''

Hardware /
a) 2 microcontrollers with wifi (2 x mini USB, 2 x Powerbank (5V), jumperwire, 330 ohm + 470 ohm resistors)
b) distance sensor
c) servo motor

Software
d) Codes for distance sensor and servo motor
e) web-hoster for data transfer

a) There are several possibilities for microcontrollers. Instead of using a expansive arduino wifi module I decided to go first with a SIM 800L ([http://www.ayomaonline.com/programming/quickstart-sim800-sim800l-with-arduino/]) as I was coming across with hardware failures of that module, I decided to try out WEMOS D1 mini ([https://www.wemos.cc/product/d1-mini-pro.html#]). This module has great functions as you can directly hook up sensors on it (but also you can do a lot of different stuff with it, see here:[https://www.youtube.com/watch?v=G73fiaOpUAc]). The great thing about them is that they are easy to use because you can work with the Arduino IDE on it, they are small, they come with wifi (ESP 8266 chip) and they are cheap (check out aliexpress.com).
So I used two of these modules: One on the sensing and one on the retrieving site.

b)
microcontroller 1 was connected with the Hc-Sr04 distance sensor ([http://www.micropik.com/PDF/HCSR04.pdf]). It was meassuring the movement of the metal plate that was created whenever there was a car passing by. The code below contains already the hosting information for the data transfer. More information on that under e)

Hardware
[[File:distance sensor and code_Steckplatine.jpg|400px]]

arduino code:

#include <ESP8266WiFi.h>
#include <FirebaseArduino.h>

// Set these to run example.
#define FIREBASE_HOST "realtime-distance-sensor.firebaseio.com"
#define FIREBASE_AUTH "O5IKDBWKoCCPDYGeqxmLhM3Hn5maQZ4Yj3puRSSF"

#define WIFI_SSID "AndroidHotspot8432" //"o2-WLAN93"
#define WIFI_PASSWORD "5ea71cf6ed4c" //"9592132995009940"

#define echoPin D7 // Echo Pin
#define trigPin D6 // Trigger Pin
long duration, distance; // Duration used to calculate distance

void setup() {
Serial.begin(115200);

pinMode(trigPin, OUTPUT);
pinMode(echoPin, INPUT);

// connect to wifi.
WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
Serial.print("connecting");
while (WiFi.status() != WL_CONNECTED) {
Serial.print(".");
delay(500);
}

Serial.println();
Serial.print("connected: ");
Serial.println(WiFi.localIP());
Firebase.begin(FIREBASE_HOST, FIREBASE_AUTH);
}

void loop() {

digitalWrite(trigPin, LOW);
delayMicroseconds(2);
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);
duration = pulseIn(echoPin, HIGH);
//Calculate the distance (in cm) based on the speed of sound.
float distance = duration*0.0343/2;
Serial.println(distance);
Serial.println ( " cm");
delay (200);

digitalWrite(echoPin, HIGH);

//send data to firebase
Firebase.setFloat("dist", distance);

digitalWrite(echoPin, LOW);
delay(1000);
}

GMU:Dataflow/Jam session/Ayla Güney

2017-04-23T20:40:21Z

Ayla:

GMU:Dataflow/Jam session/Ayla Güney

2017-04-23T20:39:39Z

Ayla:

2016-01-07T12:39:43Z

Ayla:

SOME BASICS

[[File:basics1.jpg]]

[[File:switchesayla.jpg]]

[[File:555ayla.jpg]]

== ASSIGNMENT 1 - IMPROBABLE SWITCH==
 

[[File:pinballswich1.jpg]]

Aline and me decided to make a"simple pinball switches" in a box.

We went through some trash bins on the campus and found some thicker cardboard
boxes, probably used by architecture students. We also found some conductive
materials that were our six obstacles aka our six switches. Between the two
cardboard boxes we put two breadboards that were creating five sounds. With the
help of some alligator clips we connected every obstacle on the inner side with
some copper wire to the breadboards.

[[File:pinballswich7.jpg]]

So each obstacle was one part of the switch. The circuit was closed when the ball
that was wrapped in aluminium foil touched the positive and the negative part of
the obstacle.

[[File:pinballswich8.jpg]]

Because the speakers were inside the box, the sounds were a bit silent so we made
some holes on the sides of the box and also some smaller ones on the board itself.

[[File:pinballswich3.jpg]]

While building we realized that it's always that you have to think about how to attach something to another part, make it stiff or make it flexible, also.

Inside the machine, we worked with five 555 timers in two different breadboards.
The main constructions was the same but the values were varying in relation to different values of the resistors between the pins 6-7 and 7-8 and the capacitors between pins 1-2 and 3.

Circuits:
1 ) R2 : 1 M ohm 2) R2: 10K ohm 3) R2: 100K ohm
R1 : 100 K ohm R1: 10K ohm R1: 10K ohm
1 - 2 :0.1 μF 1 - 2 : 0.1 μF 1 - 2 : 0.1 μF
3: 1μF 3: 47μF 3: 100μF
4) R2 : 1K ohm 5) R2 : 10 K ohm
R1 : 1 K ohm R1 : 100 K ohm
1 - 2 : 0.1μF 1 - 2 : 0.1μF
3: 22 μF 3: 47μF

[[File:pinballswich5.jpg]]

== ASSIGNMENT 2 - VARIABLE RESISTANCE ==
 

For the second assignment I started some research on the piezo and got interested in the fact that it doesn't work as an acoustic microphone but one that's depending on vibration.
So my attempt for the beginning was to use it as an input into the 555 circuit in monostable mode (for some reasons it did not work at all in the astable mode). So there was a permanent sound of the circuit and whenever I touched the piezo it gave some really small extra sound, pushing it harder did make it a little bit louder. Instead of the loudspeaker I used a LED to see the changes better. In this case my body was working as a variable resistance. I wanted to get a stronger signal that I could also work with. In this class and in the following last block I was occupied with researching on some amplifyer circuits.

There are some different amplifyers that I came across but I kept on working with the LM385N for my piezo research.
In another course I printed loudspeakers by the silkscreen printing technique for which I used the LM 386N-1.

[[File:lm386ayla.jpg]]

The last OP-AMP I came across in my research is the 741, which I haven't tested already but I will add some schematics that I found online about this too.

[Brief digression 'zener diode': A zener diode helps to clamp the current voltage down to a specific voltage to protect devices from too high voltage
https://de.wikipedia.org/wiki/Z-Diode]

[[File:741ayla.jpg]]

[[File:7412ayla.jpg]]

== ASSIGNMENT 3 - Detecting Vibrations ==
 

Video 

https://vimeo.com/150836328

Work in progress

When you google vibration (in German) the first entries you will get are about safety precautions on working spaces. It says, that their impact on people can range from disturbance and performance loss over health hazard to health damage (Institut für Arbeitsschutz der Deutschen Gesetzlichen Unfallversicherung).
Vibrations are less acoustic and more about a sensory feeling. If something that you are standing on is vibrating you will feel it but you won't either see nor hear the vibrations only what's vibrating is recognizable. The phenomenon is stuck to materials. I would be intersted in de-materialising vibrations and make them noticeable on different levels. I am interested in researching more the concepts of sound and vibration which often are used in similar ways. The idea I would like to pursue is to work on an installation that reacts to vibrations sensed by piezos. It would be nice to have some closed self-fulfilling system that uses and causes vibrations.
In first place I need to work on a stronger signal coming from the piezo element. Therefore I will do more experiments on different OP-AMPs and also different components that can effect the outcome.

Schematic of LM386, piezo mic as an input and a LED as the output

[[File:lm358ayla.jpg]]

== Experiment: Loudspeaker-Printing with Silk screen printing method ==
 

Work in progress

With conductive ink I tried to print spiral-shaped forms on textiles and paper with the silk screen printing method. It was the first time that I tried silk screen printing. The prints were acceptable but the most important point was that they should be conductive. With some ironing of the prints the conductivity got better.

[[File:loudspeakerayla1.jpg]] 
''Two forms on Jeans and cotton cloth''

[[File:loudspeakerayla2.jpg]] 
''Coloured conductive ink''

''Loudspeaker on paper''

I also built an amplifiyer circuit with the LM386 and used an old headphone kacj to connect my smartphone to the circuit, so that the sound that was coming from my phone could be listened to on the printed loudspeakers.
It did work but really silent. Right now there are some points I need to trouble shoot but I think with some better wireing and the pure silver ink I could get better results.

GMU:The Conceptual Sensor/Ayla

2016-01-07T12:39:02Z

Ayla:

SOME BASICS

[[File:basics1.jpg]]

[[File:switchesayla.jpg]]

[[File:555ayla.jpg]]

== ASSIGNMENT 1 - IMPROBABLE SWITCH==
 

[[File:pinballswich1.jpg]]

Aline and me decided to make a"simple pinball switches" in a box.

We went through some trash bins on the campus and found some thicker cardboard
boxes, probably used by architecture students. We also found some conductive
materials that were our six obstacles aka our six switches. Between the two
cardboard boxes we put two breadboards that were creating five sounds. With the
help of some alligator clips we connected every obstacle on the inner side with
some copper wire to the breadboards.

[[File:pinballswich7.jpg]]

So each obstacle was one part of the switch. The circuit was closed when the ball
that was wrapped in aluminium foil touched the positive and the negative part of
the obstacle.

[[File:pinballswich8.jpg]]

Because the speakers were inside the box, the sounds were a bit silent so we made
some holes on the sides of the box and also some smaller ones on the board itself.

[[File:pinballswich3.jpg]]

While building we realized that it's always that you have to think about how to attach something to another part, make it stiff or make it flexible, also.

Inside the machine, we worked with five 555 timers in two different breadboards.
The main constructions was the same but the values were varying in relation to different values of the resistors between the pins 6-7 and 7-8 and the capacitors between pins 1-2 and 3.

Circuits:
1 ) R2 : 1 M ohm 2) R2: 10K ohm 3) R2: 100K ohm
R1 : 100 K ohm R1: 10K ohm R1: 10K ohm
1 - 2 :0.1 μF 1 - 2 : 0.1 μF 1 - 2 : 0.1 μF
3: 1μF 3: 47μF 3: 100μF
4) R2 : 1K ohm 5) R2 : 10 K ohm
R1 : 1 K ohm R1 : 100 K ohm
1 - 2 : 0.1μF 1 - 2 : 0.1μF
3: 22 μF 3: 47μF

[[File:pinballswich5.jpg]]

== ASSIGNMENT 2 - VARIABLE RESISTANCE ==
 

For the second assignment I started some research on the piezo and got interested in the fact that it doesn't work as an acoustic microphone but one that's depending on vibration.
So my attempt for the beginning was to use it as an input into the 555 circuit in monostable mode (for some reasons it did not work at all in the astable mode). So there was a permanent sound of the circuit and whenever I touched the piezo it gave some really small extra sound, pushing it harder did make it a little bit louder. Instead of the loudspeaker I used a LED to see the changes better. In this case my body was working as a variable resistance. I wanted to get a stronger signal that I could also work with. In this class and in the following last block I was occupied with researching on some amplifyer circuits.

There are some different amplifyers that I came across but I kept on working with the LM385N for my piezo research.
In another course I printed loudspeakers by the silkscreen printing technique for which I used the LM 386N-1.

[[File:lm386ayla.jpg]]

The last OP-AMP I came across in my research is the 741, which I haven't tested already but I will add some schematics that I found online about this too.

[Brief digression 'zener diode': A zener diode helps to clamp the current voltage down to a specific voltage to protect devices from too high voltage
https://de.wikipedia.org/wiki/Z-Diode]

[[File:741ayla.jpg]]

[[File:7412ayla.jpg]]

== ASSIGNMENT 3 - Detecting Vibrations ==
 

Video 

https://vimeo.com/150836328

Work in progress

When you google vibration (in German) the first entries you will get are about safety precautions on working spaces. It says, that their impact on people can range from disturbance and performance loss over health hazard to health damage (Institut für Arbeitsschutz der Deutschen Gesetzlichen Unfallversicherung).
Vibrations are less acoustic and more about a sensory feeling. If something that you are standing on is vibrating you will feel it but you won't either see nor hear the vibrations only what's vibrating is recognizable. The phenomenon is stuck to materials. I would be intersted in de-materialising vibrations and make them noticeable on different levels. I am interested in researching more the concepts of sound and vibration which often are used in similar ways. The idea I would like to pursue is to work on an installation that reacts to vibrations sensed by piezos. It would be nice to have some closed self-fulfilling system that uses and causes vibrations.
In first place I need to work on a stronger signal coming from the piezo element. Therefore I will do more experiments on different OP-AMPs and also different components that can effect the outcome.

Schematic of LM386, piezo mic as an input and a LED as the output

[[File:lm358ayla.jpg]]

== Experiment: Loudspeaker-Printing with Silk screen printing method ==
 

Work in progress

With conductive ink I tried to print spiral-shaped forms on textiles and paper with the silk screen printing method. It was the first time that I tried silk screen printing. The prints were acceptable but the most important point was that they should be conductive. With some ironing of the prints the conductivity got better.

[[File:loudspeakerayla1.jpg]] 
''Two forms on Jeans and cotton cloth''

[[File:loudspeakerayla2.jpg]] 
''Coloured conductive ink''

[[File:loudspeakerayla3.jpg]] 
''Loudspeaker on paper''

I also built an amplifiyer circuit with the LM386 and used an old headphone kacj to connect my smartphone to the circuit, so that the sound that was coming from my phone could be listened to on the printed loudspeakers.
It did work but really silent. Right now there are some points I need to trouble shoot but I think with some better wireing and the pure silver ink I could get better results.