Evander Batson
xinhe feng
FluffyLeecy
frankiezek
gaboratparsons
giang063
gracegotlost
lauriewaxman
Siwen Li
Xiaofeng Lin
Yury Gitman
mar28th
Max(TONG WEN)
Soohyun
sabotai
Susan Lin
Bichito: Week 03
http://vimeo.com/moogaloop.swf?clip_id=2434340&server=vimeo.com&show_title=1&show_byline=1&show_portrait=0&color=ff0179&fullscreen=1
RFID Test 06 from Jennifer Dopazo on Vimeo.
Recent Updates Page 77 Toggle Comment Threads | Keyboard Shortcuts
-
Yury Gitman
-
Yury Gitman
Lets get it on Lamp. (bringin the heat…all night long!)
So I got the code and circuitry to all work correctly for my "Let’s Get It On" Lamp. I am so excited to get it working on the reals.
Yet, i’m still havin some issues with the pants circuitry. Sometimes the fly signal works, others it doesn’t.
*Side note: there pants have enough batteries in them to melt through the crotch. This concerns me a bit and it could probably be wired in a more optimal way, with less batteries, but I need a break from this. FYI: Not for actual wearing!
Here’s some vid and pics of my progress. 🙂
http://vimeo.com/moogaloop.swf?clip_id=2458647&server=vimeo.com&show_title=1&show_byline=1&show_portrait=0&color=&fullscreen=1
lamp_circuit from Lynn WasHere on Vimeo./////————————————————-CODE—————————————————–/////
/*
* BlinkColorFader — Example of how to select color & brightness
* with two pots
*
* For more info on how to use pots and analog inputs see:
* http://www.arduino.cc/en/Tutorial/AnalogInput
*
* BlinkM connections to Arduino
* PWR – — gnd — black — Gnd
* PWR + — +5V — red — 5V
* I2C d — SDA — green — Analog In 4
* I2C c — SCK — blue — Analog In 5
*
* Note: This sketch sends to the I2C "broadcast" address of 0,
* so all BlinkMs on the I2C bus will respond.
*/#include "Wire.h"
#include "BlinkM_funcs.h"//address for BlinkM
#define blinkm_addr 0x00// INPUT: Potentiometer should be connected to 5V and GND
int potPin = 0; // Potentiometer output connected to analog pin 0
#define potPin 0 // analog in pins from zipper signal to control LED fade color: white to red
#define ARRAY_SIZE 5 //this is the array size
int potNums[ARRAY_SIZE]; //this reads AND stores 10 numbers from the potentiometer input.
int pot_val; //potentiometer value from zipper position on jeans// OUTPUT: Use digital pins 9-11, the Pulse-width Modulation (PWM) pins
// LED’s cathodes should be connected to digital GND
int pPin = 7; //PLAY, conncected to pin8// Program variables
int currentPlace = 0; //this is the total value
int placeHolder = 0; //placehoder for each spot in the array
int ave = 0; //average pot input numbers (normalize/smooth the input signal)//SETUP
void setup()
{
BlinkM_beginWithPower();
BlinkM_stopScript(blinkm_addr); // turn off startup script
Serial.begin(9600); // …set up the serial ouput in 0004 formatfor (int i = 0; ARRAY_SIZE < 5; i++)
{
potNums[i] = 0; //fills all values in the array to 0
}
pinMode(pPin, OUTPUT);
}// MAIN
void loop()
{
currentPlace -= potNums[placeHolder]; //subtract the last reading from array
potNums[placeHolder] = analogRead(potPin); // read the potentiometer value at the input pin
currentPlace += potNums[placeHolder]; //add to the array
placeHolder++; //add 1 to the placeHolder each loopif(placeHolder >= ARRAY_SIZE)
{
placeHolder = 0; //if the placeHolder goes thru the whole array,
} //then loop back to the 1st spot in the arrayave = currentPlace/ARRAY_SIZE; //calc the average
//Serial.println(ave); // send it to the computer (as ASCII digits)pot_val = analogRead(potPin); // read the hue pot
//Serial.println(pot_val);//——————————————-LED LIGHT——————————————
//light should fade from white when zipper is up to red when zipper is down
BlinkM_fadeToRGB( blinkm_addr, 255, int(pot_val/3.5), int(pot_val/3.5)); // adjust the green and blue to decrease with pot values//——————————————-MUSIC——————————————
if (ave > 600) // Upper third of potentiometer"s range (600)
{
digitalWrite(pPin, HIGH); //keep digital pin open if zipper is near top
}else if (ave >= 200 && ave <= 500) // Middle third of potentiometer’s range (100 – 150)
{
digitalWrite(pPin, HIGH); //keep digital pin open if zipper is in middle
}else if (ave < 100) // Lowest third of the potentiometer’s range (50 – 100)/turn on music here (< 100)
{
digitalWrite(pPin, LOW); //put digital pin to GROUND if zipper is at bottom
}//—————-DEBUG—————————————————–
Serial.print("potVal(ave):");
Serial.println(ave);delay(50); // wait a bit because we don’t need to go fast
} -
Yury Gitman
13 Meiwa Denki and Nonsense Toy Work shop
I just be reminded of Meiwa Denki. Maybe you all already knew them. But they are so awesome that I think I have to post here for you guys, just for reference.
They made a lot of instruments and toys( like knockman family toys) … and also some funny design tools.
I guess the fallowing design from their Nonsense Toy Work shop is very useful for us in this particular time…(you can jump to the demonstration part if you don’t know Japanese) 😀
-
comprar online en estados unidos
Wow, I never thought that Meiwa Denki shop could be this awesome.
Luigi
-
-
Yury Gitman
antisocial cat_prototype 006 code iteration
So, yeah, I figured out what the problems were and finally made the servo work as the way I want! Hooray!
When the toy detects me (using sensor), it would turn its head and stay at that position until it detects me again and turns its head.http://vimeo.com/moogaloop.swf?clip_id=2414067&server=vimeo.com&show_title=1&show_byline=1&show_portrait=0&color=&fullscreen=1
prototype 006 code iteration from maze on Vimeo.And here is the code:
———————————————————–
#include <Servo.h>
Servo myservo; //create servo object to control a servo
int sensor = 0; // analog pin used to connect the sensor
int motorPin=11;
int val; // variable to read the value from the analog pin
boolean status=0; //status of detecting
int counter=0;void setup()
{
myservo.attach(11);
myservo.setMaximumPulse(2200);
Serial.begin(9600); // set up Serial library at 9600 bps
pinMode(sensor, INPUT);
//pinMode(relay, OUTPUT);
pinMode(motorPin, OUTPUT);
myservo.setMaximumPulse(2000);
myservo.setMinimumPulse(700);Serial.print("Ready\n");
}//end of setupint getSensor() {
val = analogRead(sensor); // reads the value of the potentiometer (value between 0 and 1023)
val = map(val, 0, 1023, 0, 179); // scale it to use it with the servo (value between 0 and 180)val=max(val,5);
val=min(val,180);return val;
} //end of getSensorvoid myRefresh(int delayTime){
for(int i=0; i < delayTime/20; i++){ //delay is the total ms delay we want, 20 is the delay per iteration of the loop
Servo::refresh();
delay(20);
}
}int move0(){
Serial.print("servo position 0\n");
myservo.write(0);
//Servo::refresh();
myRefresh(100);
}//end of move0int move90(){
Serial.print("servo position 90\n");
myservo.write(90);
//Servo::refresh();
myRefresh(100);
}//end of move90int move180(){
Serial.print("servo position 180\n");
myservo.write(180);
//Servo::refresh();
myRefresh(100);
}//end of move180void loop()
{
val=getSensor();
Serial.println(val);
if (val>20){
if(status==0){
move180();
myRefresh(1000); // waits for the servo to get there
counter++;
}else if(status==1){
move0();
myRefresh(1000);
counter++;
}//end of else}//end of if
if(counter%2!=0){
status=1;
}else{
status=0;
}//myservo.write(getSensor());
//Serial.println(getSensor());
//delay(15);Servo::refresh();
}—————————————————————————–
I defined a function myRefresh() to make sure the servo would be refreshed every 20ms.
Then I added 3 moving functions with different angles.
The tricky part was that how to make servo stop and turn to reverse direction when the sensor detects someone again. By using 2 variables counter and status, I made servo turn to position 180 when the counter is even and turn to position 0 when it is odd.In this week, I’ll try to put the prototype that I have so far into the body of my plush prototype.
The focus of the testing this week will be:
– redesign the character for prototyping (make it big enough to put all my electronics)
– building/ sewing the plush toy
– make the toy’s head move! Think about materials, the skeleton, connections… etc. -
Yury Gitman
12 Quack!
After a long fight with win bound chip and arduino and bubbles…, I finally heard it quack！
http://vimeo.com/moogaloop.swf?clip_id=2413709&server=vimeo.com&show_title=1&show_byline=1&show_portrait=0&color=&fullscreen=1
Quack! from Hsiang Ju Hung on Vimeo.Here’s the code:
// Input settings
int analogPin = 3; // ir sensor connected to analog pin 3
int val = 0; // variable to store the read value// Digital pin settings
int aOut = 9; // Play pin connected to digital pin 9// Variables
int aVal = 0; // Variables to store the input from the ir sensorint DEBUG = 1; // Set to 1 to turn on debugging output
int average[100]; // Averaging Code setting
byte counter = 0;void setup()
{
pinMode(aOut, OUTPUT); // sets the pin as outputif (DEBUG) {
Serial.begin(9600); // Open serial communication for reporting
}
}//Main program
void loop(){
val = analogRead(analogPin);//Averaging Code start
average[counter] = val;
byte c;
int total = 0;
for(c = 0;c<100;c++){
total += average[c];
}
int averaged = total / 100;
Serial.println(averaged);
counter = (counter + 1) % 100; //Averaging Code. modified from Dave Millis exampleif(val < 300){
analogWrite(aOut, 0);
delay(1500);
analogWrite(aOut, 255);
delay(100);
}
else{
analogWrite(aOut, 255);
}
if (DEBUG) { // if we want to read the output
DEBUG+=1;
if(DEBUG>100){ //print every hunderd loops
DEBUG = 1; // reset the counter
Serial.print(val);
}}
}And here is the new win bound recorder which is smaller, more solid, and works as well as the old one. It sounds actually better because I got a bigger speaker for it.
-
Yury Gitman
Birdie/Qwail work in progress…
I’ve scrapped the Winbond, which is both good and bad. The Winbond would have been great for making bird sounds, but the Arduino Mini is so much more compact and easy to work with. It makes sound too, but the computery noises it makes are not very bird-like. In fact, they’re just downright annoying.
I’m using the Play Melody code from an Arduino tutorial to get started. I had to add a couple of extra octaves (by halving the frequency of each tone for each octave), and now I’m working on getting the melody to play at the appropriate time.
Right now my code will play a little ditty after 15 seconds if someone is not in front of the IR sensor. I need more parameters, but it’s not bad for a proof of concept. Consider is an implementation prototype.
My code is after the jump, by the way
Some photos:
The Whole Mess
Here is my arudino mini, hooked up to the arduino as a usb connector. Also featured within the mess of wires is an IR sensor, a speaker (bigger than the one I’ll end up using, actually), and some fine LEDS to help me figure out what’s going on when). The Red LED comes on when the IR is on and reading something is close, and Yellow LED comes on when the IR is reading that nothing is in front of it anymore.
A Close Up
This is just a close up shot of the Arduino Mini, connected to things. I’ll be taking it off of the bread board as soon as I’m happy with my code. Until then, it stays, which unfortunately is holding me back from making Birdie look and feel prototypes.
A video is coming soon!!
-
Yury Gitman
vMind physical prototype!
http://vimeo.com/moogaloop.swf?clip_id=2410460&server=vimeo.com&show_title=1&show_byline=1&show_portrait=0&color=&fullscreen=1
vMind Physical Prototype from Jessica Floeh on Vimeo.
These are the parts of the vMind prototype! It consists of a mat switch – connected to a toggle switch — that activates an mp3 player/recorder. The device can be recorded onto and custom messages will be played. The vitamin bottle goes on top of this device, when the matswitch is depressed, no sound comes from it (because of the toggle switch). However, when nothing is on it, the music/sounds will play! This encourages people to pick up the vitamin bottle and take their vitamins so they can hear the jams! There is also an LED interface, controlled by a proximity sensor. The lights blink when you are near it, to bring your attention to it.
Problems: The mat-switch is not that reliable. I need to get a capacitive touch sensor I believe, this will make it more secure. Also, there are some snags in the LED interface, still working on making that function properly. I need to try to get it to be just one battery or simplify the interface…are the LEDs necessary?
See below for more photos!
-
led par lights
This is really helpful to people that have a maintenance their medicine or a vitamins. that keep their healthy.. Another great stuff and idea . Thanks for sharing this blog!!
-
-
Yury Gitman
Catertainer Circuit + Code
The code finally works!
The Catertainer has 10 taunts, and every minute, if it isn’t played with, it will say one of the taunts.
Here is an example of one of the taunts.
http://vimeo.com/moogaloop.swf?clip_id=2407870&server=vimeo.com&show_title=1&show_byline=1&show_portrait=0&color=&fullscreen=1
Catertainer Circuit from Mouse & the Billionaire on Vimeo.I finally got the Wee from Sparkfun, so I’ll be transferring the whole circuit to the new (much smaller) circuit, soon.
fun!
-
Yury Gitman
Birdie (or perhaps “Qwail?”) BOM
You know, like a quail that wails.
Anyway, here is a lovely diagram of how I’m hookin’ things up.
You don’t actually need the Arduino Mini USB adapter to get things cooking, you can use a regular Arduino, as shown above, if you already have one. Just be sure to remove the Atmel ATmega168 so you can connect the reset pin from the mini to the Arduino (see what I mean below). Without this, data will not transfer.
Arduino Mini
Arduino Mini USB Adapter or Arduino
Superbright LEDS
8 ohm speaker
IR SensorOkay, here is a photo of the Arduino without the Atmel chip.
Yes, that chip does come off! Just don’t pry it off too violently, or you’ll bend the pins. Mmkay?
-
Yury Gitman
Wee!
The Wee I ordered from Sparkfun just came in, and it is ridiculously small.
I just had to take a picture of it for y’all
Careful you don’t eat it!
-
Yury Gitman
Arduino Trick: Treating Digital like Analog
In response to Katrina’s great tip about the multiplexer I thought I would pass this little trick on as well.
With only a few simple lines of code you too can use your digital inputs to read analog data. Below is the function. Just copy and paste the code before your void loop(), then call it with digiAnalog(pin). It’s pretty easy. Continue reading to see the code:
-
Yury Gitman
Making some progress???
So here’s what I’ve got going so far…it doesn’t look like much right now, but it will make a huge difference once I actually have it all set up in the real trash bin I intend to use. Right now I’m just trying to get everything to work.
I’ve go the IR sensors detecting which bin (recycling or waste) was used, and the Winbond chip changes tracks and plays back the appropriate sound depending which side was just used. I’m having a bit of a problem with the Windbond chip, though. When it needs to change tracks it won’t play back the sound after it has moved forward. It’ll only play the sound the next time that side of the bin is used. I can’t figure out how to fix it in my code, but I don’t think it’s a huge problem…just strange. My code is posted at the end of this blog post.
I also have the Arduino counting how many times each side has been used. A green or yellow LED will light up when one side is used more than the other (green = you’ve recycled more, yellow = you’ve wasted more).
Alos, I assembled my XBee transceivers. It took FOREVER to solder everything – I even got injured in the process (one of the pins got shoved under my fingernail…awesome.). I haven’t set them up to work yet…but that’s going to happen in the next day or two. For now, all data from the bin can be seen through the serial reader in Arduino. I’ve posted a screenshot of it below.
Lastly, I started playing with some big FSR’s to use as a rough scale/weight measurement for now. Next task for me is to figure how I’m going to normalize their numbers in my code…I have no clue how I’m going to do that…
Here’s some pics:
The inside of my ‘bin’…not pretty, but semi-functional at least!
Had to show off my awesome soldering job…male and female header pins all in a row, just so I can mount a silly XBee on it.
Screen shot of Arduino serial reader showing my bin data…with some lovely notes included in red.http://vimeo.com/moogaloop.swf?clip_id=2403729&server=vimeo.com&show_title=1&show_byline=1&show_portrait=0&color=&fullscreen=1
PING Documentation from Katrina Bekessy on Vimeo.Current problems I’m having:
-getting my Windbond chip to change tracks and play back the sound right after
-normalizing my FSR inputs to numbers that actually mean something
-keeping the stupid IR sensors consistent. Everytime I turn them on they start with different readings than beforeNext things I need to do:
-include FSR’s and photoresistor (for lid of bin) with rest of my circuit using a multiplexer
-get XBee’s to send bin data to computer wirelessly
-build working circuit into actual trashbin
-refine code to make readings more accurateAm in way over my head? Yes, yes I am…
Here’s my long Arduino code thus far. I’m sure it could be written much more succinctly/efficiently…
#define NUMREADINGS1 10
#define NUMREADINGS2 10
#define NUMREADINGS3 10
#define NUMREADINGS4 10int readings1[NUMREADINGS1];
int index1 = 0;
int total1 = 0;
int average1 = 0;int readings2[NUMREADINGS2];
int index2 = 0;
int total2 = 0;
int average2 = 0;int readings3[NUMREADINGS3];
int index3 = 0;
int total3 = 0;
int average3 = 0;int readings4[NUMREADINGS4];
int index4 = 0;
int total4 = 0;
int average4 = 0;int IR1 = 0;
int valIR1 = 0;int IR2 = 1;
int valIR2 = 0;int IR3 = 3;
int valIR3 = 0;int IR4 = 4;
int valIR4 = 0;boolean readBin = true;
int playPin = 2;
int fwdPin = 3;
int trackCount = 1;int wasteCount = 0;
int recCount = 0;
int greenLED = 4;
int yellowLED = 5;void setup()
{
Serial.begin(9600);
pinMode(playPin, OUTPUT);
pinMode(fwdPin, OUTPUT);
pinMode(greenLED, OUTPUT);
pinMode(yellowLED, OUTPUT);
for (int i = 0; i < NUMREADINGS1; i++){
readings1[i] = 0;
}
for (int j = 0; j < NUMREADINGS2; j++){
readings2[j] = 0;
}
for (int h = 0; h < NUMREADINGS3; h++){
readings3[h] = 0;
}
for (int k = 0; k < NUMREADINGS4; k++){
readings4[k] = 0;
}
}void loop()
{
digitalWrite(fwdPin, HIGH);
digitalWrite(playPin, HIGH);
if(readBin == true){
total1 -= readings1[index1];
readings1[index1] = analogRead(IR1);
total1 += readings1[index1];
index1 = (index1 + 1);
if (index1 >= NUMREADINGS1){
index1 = 0;
}
average1 = total1 / NUMREADINGS1;
total2 -= readings2[index2];
readings2[index2] = analogRead(IR2);
total2 += readings2[index2];
index2 = (index2 + 1);
if (index2 >= NUMREADINGS2){
index2 = 0;
}
average2 = total2 / NUMREADINGS2;
total3 -= readings3[index3];
readings3[index3] = analogRead(IR3);
total3 += readings3[index3];
index3 = (index3 + 1);
if (index3 >= NUMREADINGS3){
index3 = 0;
}
average3 = total3 / NUMREADINGS3;
total4 -= readings4[index4];
readings4[index4] = analogRead(IR4);
total4 += readings4[index4];
index4 = (index4 + 1);
if (index4 >= NUMREADINGS4){
index4 = 0;
}
average4 = total4 / NUMREADINGS4;
if(average1 > 365 || average2 > 365){
readBin = false;
recCount ++;
Serial.print("waste");
Serial.println();
Serial.print(average1);
Serial.println();
Serial.print(average2);
Serial.println();
Serial.print(recCount);
Serial.println();
if(trackCount == 1){
playBack();
} else {
digitalWrite(fwdPin, LOW);
delay(300);
digitalWrite(fwdPin, HIGH);
trackCount = 1;
playBack();
}
}
if(average3 > 365 || average4 > 365){
readBin = false;
wasteCount ++;
Serial.print("recycle");
Serial.println();
Serial.print(average3);
Serial.println();
Serial.print(average4);
Serial.println();
Serial.print(wasteCount);
Serial.println();
if(trackCount == 2){
playBack();
} else {
digitalWrite(fwdPin, LOW);
delay(300);
digitalWrite(fwdPin, HIGH);
trackCount = 2;
playBack();
}
}
}
if(recCount > wasteCount){
digitalWrite(greenLED, HIGH);
digitalWrite(yellowLED, LOW);
}
else if(wasteCount > recCount){
digitalWrite(yellowLED, HIGH);
digitalWrite(greenLED, LOW);
}
else {
digitalWrite(yellowLED, LOW);
digitalWrite(greenLED, HIGH);
}
}void playBack(){
digitalWrite(playPin, LOW);
delay(300);
digitalWrite(playPin, HIGH);
delay(3000);
readBin = true;
} -
Yury Gitman
How May I Help You?: Current Issues
http://vimeo.com/moogaloop.swf?clip_id=2409698&server=vimeo.com&show_title=1&show_byline=1&show_portrait=0&color=ffffff&fullscreen=1
How May I Help You?: Monitoring the IR value from Fuki on Vimeo.When the Average is <= 10, the audio plays; when it’s >= 10, the audio stops.
http://vimeo.com/moogaloop.swf?clip_id=2409813&server=vimeo.com&show_title=1&show_byline=1&show_portrait=0&color=ffffff&fullscreen=1
How May I Help You?: Test 1 from Fuki on Vimeo.Current Issues:
- Static sounds coming out of my winbond chip.
- Audio volume is too low.
- Toggle switch has not arrived. Will be using the battery on/off switch for now.
- "Averaged" value varies from drawer to drawer
- The audio keeps looping if the drawer stays open (Maybe this is not a problem..). It would be good to add additional functions when it loops.
-
Yury Gitman
antisocial cat_look and feel prototype
character design sketch
tried to draw the paper molds based on my character sketch
it’s quite close to the head proportion that I suspected
my working scene
back
front
-
Yury Gitman
antisocial cat_ servo prototype
Prototype 005
Materials: PIC16F88, breadboard, servo, pot
Notes:
– The servo could keep turning left and right, but I couldn’t control its speed and directions.
– I found that Arduino has a servo library that is easy to use for controlling servos. So I decided to switch to Arduino board.http://vimeo.com/moogaloop.swf?clip_id=2297781&server=vimeo.com&show_title=1&show_byline=1&show_portrait=0&color=&fullscreen=1
servo test from maze on Vimeo.Prototype 006
Materials: Arduino, servo, breadboard, IR sensor
Notes:
– In the very beginning, the range of IR sensor was too small. Thus the servo only moved when I almost touched the sensor. Here I scaled the value of IR sensor from 0-1023 to 0-179.
– The servo had a problem of drawing too much current.
– So I did iteration by separating power supply for the servo, but joined the grounds of the two power supplies. I also added decoupling capacitors to stabilize my voltage regulator.
http://vimeo.com/moogaloop.swf?clip_id=2391917&server=vimeo.com&show_title=1&show_byline=1&show_portrait=0&color=&fullscreen=1
prototype_arduino+servo+ir sensor from maze on Vimeo.– Here is the code:
——————————————————————————————————–
#include <Servo.h>Servo myservo; //create servo object to control a servo
int sensor = 0; // analog pin used to connect the sensor
int motorPin=11;
int val; // variable to read the value from the analog pinvoid setup()
{
myservo.attach(11);
myservo.setMaximumPulse(2200);
Serial.begin(9600); // set up Serial library at 9600 bps
pinMode(sensor, INPUT);
//pinMode(relay, OUTPUT);
pinMode(motorPin, OUTPUT);
myservo.setMaximumPulse(2000);
myservo.setMinimumPulse(700);Serial.print("Ready\n");
}int getSensor() {
val = analogRead(sensor); // reads the value of the potentiometer (value between 0 and 1023)
val = map(val, 0, 1023, 0, 179); // scale it to use it with the servo (value between 0 and 180)val=max(val,5);
val=min(val,180);return val;
} //end of getSensor/*
int moveFoward() {
analogWrite(motorPin, getSensor());
delay(1000);
digitalWrite(motorPin, LOW);
delay(1000);
//digitalWrite(relay, HIGH);
//Serial.println(getIR());
delay(1000);
}int moveBackward() {
analogWrite(motorPin, getSensor());
delay(1000);
digitalWrite(motorPin, LOW);
delay(1000);
//digitalWrite(relay, LOW);
//Serial.println(getIR());
delay(1000);
}
*/void loop()
{
/*
val=getSensor();
if (val<140){
val=180;
myservo.write(val); // sets the servo position according to the scaled value
delay(15); // waits for the servo to get there
}//end of ifwhile(getSensor()>30){
myservo.write(getSensor());
Serial.println(getSensor());
delay(15);
}//end of while
*/
myservo.write(getSensor());
Serial.println(getSensor());
delay(15);//moveFoward();
//moveBackward();
Servo::refresh();
}
————————————————————————————————-
– I tried to pause the servo after every time it turns by expanding the delay time of myservo.write(). However, its movement became unpredictable. Then I tried moveFoward() and moveBackward() above, but they didn’t work well either.
– Another problem I have is the click sound of servo. I was wondering if extreme turning angles like 179 or 180 caused those noise.-
M Bethancourt
Your Servo is probably fine. The USB Over Current notice means that there is a short somewhere in your circuit.
-
M Bethancourt
ps
That’s a damn cute anti-social cat you’ve got up there.
-
-
Yury Gitman
How May I Help You?: Code
The code is very simple. Take a look by clicking the following link.
-
Yury Gitman
11 LED ON!
Led on and off depending on water height from Hsiang Ju Hung on Vimeo.
I modified my code and finally got it work!
IR sensor make Led turn on based on height of water
I have not used linearizing formula yet. Just make the old one do only one thing:if(val < 235){
digitalWrite(led,255);
}
else{
digitalWrite(led,0);
}I used a water filter container to test again, which is 0 cm to 22 cm tall.
And I set if the value is bigger less then certain number, make the led turn on.Here is the simulation of controlling recorder, which also works.
http://vimeo.com/moogaloop.swf?clip_id=2380137&server=vimeo.com&show_title=1&show_byline=1&show_portrait=0&color=&fullscreen=1
simulation of controlling recorder by IR sensor from Hsiang Ju Hung on Vimeo.But when I plugged the connector from Arduino to Play pin on my recorder, it did not make any sound.
I checked my recorder. Everthing worked fine. I can press the button to play, record, and forward the sound.
Problem#1: I cannot control recorder with arduino, which has worked before.Don’t know what’s wrong with it… maybe need to build a new recorder to try again.
Problem#2: The value keeps changing every time when I put ir sensor onto the surface of water. Sometimes the same water height gives very different values. Basically, value goes from 270 to 230 when water goes from 14 cm to 22 cm. It maybe give you 270 at 14 cm this time, but next time it gives you 250 at 14 cm. It’s very hard to control the range. I have to modify the range each time according to the value I got at 14 cm. I am wondering if there is anyway I can take the beginning value as valueA and set if val- valueA > a range then turn off the led. I’m going to modify the code.
Oh, and I got the giant rubber duck. It’s bigger than I imagined…
The plan is to cut a hole at the bottom and put circuit inside once I get it work well.
I found the reason for different value output from ir sensor!!! Those bubbles in front of either emitter or receiver made the reading unstable….
-
Yury Gitman
Just in case this is useful…
I’m using a billion sensors in my project and realized a small problem: the Arduino only has 6 analog in pins (unless you use the Nano which has 8). So can how can you get the Arduino to ‘feel’ more sensors? With a multiplexer! And I found a tutorial from Igoe at ITP for it here: http://itp.nyu.edu/physcomp/Tutorials/Multiplexer
Just a little knowledge to add to your P.Comp. bank…
-
M Bethancourt
Nice! Thanks. I posted a trick to treat digital data like analog data too.
-
Making Toys 
Reply