yay, this should work for real this time. (greg likes the look of our) bigger dc motor. we’re shooting for the windshieldwiper mechanism concept. if only this were my only project in life… it’s so nice outside. arg to time constraints. yay to may and june and more.
so we’re moving away from using the fan because we cannot get enough wind with our little radioshack motor. boo. so much for the h-bridge circuit and analog coding success and fan hacking i did yesterday. double boo.
howeeeever, charley found great material for the bird (no need to sew umbrellas together anymore), and we brainstormed more and more and have a new grand concept that should work like butter. no dc motor and fan, but instead a servo, pulleys, and levers. the bird will still be fairly free flowing, but more reliable under our control. we’ll be drilling holes and using the woodshop more too. fun stuff.
we also discussed ideas for presention:
lights off yes.
stillness then triggered by flapping motion.
video shoot on blue screen? sky video behind perhaps.
setup before or during break.
…
working the code out on our own was pretty darn satisfying today. h-bridge. analog. yes. we’ll need to tweak the speeds/values once we get the actual fan and bird setup, but this is functional. see the lil video here.
int sensorPin = 0; // analog input photocell
int potValue = 0; //value read from photocell
int motor1Pin = 3; // H-bridge leg 1
int motor2Pin = 4; // H-bridge leg 2
int speedPin = 9; // H-bridge enable pin
void setup() {
// set the PWM as an input:
pinMode(sensorPin, INPUT);
Serial.begin(9600);
// set other pins as outputs:
pinMode(motor1Pin, OUTPUT);
pinMode(motor2Pin, OUTPUT);
pinMode(speedPin, OUTPUT);
}
void loop() {
potValue = analogRead(sensorPin); // read the pot value
analogWrite(speedPin, potValue); // PWM the sensor value with the pot value
Serial.println(potValue); // print pot value back to the debugger pane
if (potValue >= 800) {
analogWrite(motor2Pin, potValue*4); // set leg 2 of the H-bridge “high”
}
else if (potValue >= 400 && potValue
charley’s plan is to work more with the bird prototype tonight. i worked on the code that would control our motor/fan by use of a photo cell. the motor i had was broken somehow since i left it, so it was difficult to test, but this is pretty much the same as the h-bridge lab, so i just recreated that guy, and im hoping our stuff will work when we get together tomorrow. the solar powered/motioned sensing/light shining component is to arrive on monday. come together project, c’mon.
charley and i met sunday and made some good progress on our project. our plan is mapped. we ordered parts, and we tinkered with a prototype of a wing. see a little video
some email exchange action too:
part one:
one giant bird made of lightweight material with a wingspan in the 4 to 5 foot range. the wings would have a reflective quality. this bird would hang from the ceiling and otherwise be independent. underneath the bird would be a fan whose motor would be hooked to a power supply and an arduino. the arduino would have a light sensor attached.
part two:
a solar panel would collect energy and store it in a 6v battery that runs to a series of led lights and a motion detector (this comes as an assembled product). the led lights would glow at the underbelly of the bird where the reflective qualities would light (thinking there is some sort of spray that glows or reflects?) but also trigger the light sensor to ignite the motor of the fan. the fan would then blow air creating lift in the wings of the bird.
subject to small refinements and alterations. we’re ordering parts and researching materials currently, not in that order.
all good in the hood for now. we should be in nice shape for next week….hopefully.
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lab 8 (midi)
so tim stutts and i worked on this lab together. we had it all hooked up seemingly correct, but for some reason it didn’t work. thus we didn’t get to the creative application portion of the assignment. after class though, greg spotted out problem, which was just that the connector pins we soddered were “reversed.” good stuff.
class itself was super informative as well. we’re approaching the end now…
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on point
Final project: my first experimentation with radio with the primary aim of extending our class content by sharing some quality musical tracks by conscious artists and exposing their value from a humble tactical media perspective (my perspective) and hopefully progressing others “tactical media” perspective to develop.
Layer a) the artist uses lyrics and the popularity of their music to spread a message and reach a large audience
Layer b) me bringing their work to another audience and having a good time
An intro went through like so…
Hey ITP community, this is Ben and this is the inaugural broadcast of On Point.
On Point, inspired by a course here called Tactical Media led by extraordinaire Marisa Olson, is an experimental radio show, looking to expand your minds to the revolutionary aspects and possibilities around ITP. Each episode will bring you a different artist (or two if you lucky) who has taken the medium, in our case music and made it you know, a little battlefield of rebellion. The artists I’m spotlighting are well known to probably just a small minority, but hopefully their names will sit on everyone’s tongue as favorite flavors from now on. I want to take you through their lyrics and explore some points to be held in our collective consciousness.
Not to blow your minds with too many songs at once, we’ll take it two at a time. In between takes it’s all about making connects. That’s why I’m here — to bring you into the medium and the message out to you. So for tonight, get ready for some Ozomatli and Talib Kweli. And remember, that extra a pinch of theory is gonna make it taste really gooood.
Now let me start you out with a first nibble on some Ozomatli – an up-tempo and optimistic group whose members actually met through their affiliation with the Peace and Justice Centre in LA and their first performance was at a picket line during a strike. They offer an infectious fusion of hip-hop, funk, reggae and Latin beats, with a few African and Middle Eastern-style rhythms thrown in, plus a fairly healthy dose of rock as well. The music acts as a conduit for the band’s explosive message.
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LAB 7 (none for week 6)
i found a motor in the bins in the pcomp lab. i got the hbridge at the nyu computer store. i added an additional switch to the board and an led, even though the lab didn’t specify this. i didn’t spend time on a creative project here because i’m focused on the final project for this. i need a sonar sensor (and or photocell and or solar panel) and an ac or servo motor for the bird project…
it spins both ways
and here’s a pic
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midterm further documentation
dustroke from ben yee on Vimeo.
working code:
int irSensor = 0; //analog ir sensor pin
int irValue = 0; //analog ir sensor value
int LED = 7; //standard LEDvoid setup()
{
Serial.begin(9600);// start serial port at 9600 bps:
pinMode(LED, OUTPUT);
}
void loop()
{
//read analog value from the IR detector
irValue = analogRead(irSensor);
//Serial.println(irValue, DEC); // Print the DEC of sensor
//delay(100); NO DELAY FOR A STROBE
//analogWrite(LED, irValue);
if (irValue > 400) {
digitalWrite(LED, HIGH);
}
else {
digitalWrite(LED, LOW);
}
}
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pcomp final inspiration
we saw arthur ganson’s work last night for the last hour of our pcomp class. i’m glad greg pushed this event as it was not only fascinating, but it has given me inspiration for my final project. yes! i’m not sure if i’ll work alone or recruit a partner, but i don’t think i want to work with more than that, since my schedule is tight and such.
although many of arthur’s machines really made me want to replicate his methods, a few have stuck in my mind, and one in particular seems it could be transformed into my final project. a lot of my best thinking is done on the train… though some is while unconscious (semi-narcoleptic over here). so i really liked his notions of touch and highlighting slight movements. meditation and time.. great ideas and implementation. he plays. it’s cool.
the pumping oil and feather/violin stroking pieces were damn sexy. the walking wishbone had a comical personality. what will become my final project though comes from the “birds.” the scraps of paper are simple and everyday in a way, yet so elegant and precise. to me they illustrate flight, freedom, movement, the cross from inanimate to animate and still to life. i have love here. so to incorporate some techy components from class, i think i would like to use light sensors with the arduino to trigger the flight/energy of the birds. perhaps i could also bring in the idea of the solar powered, intelligent plant from tim/florica/marlin’s midterm project to allude to light depression/happiness. who knows… i just hope i can work this all out in time.
motivation is nice.