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[[Category:Articles]]


== Banik pičo ==
== Banik pičo ==
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[http://sosolimited.com/hbo-snow-globe/ Designer's page] - a few more words about technologies used in the HBO window
[http://sosolimited.com/hbo-snow-globe/ Designer's page] - a few more words about technologies used in the HBO window


== Hardware necessary ==
{| class="wikitable"
!Item
!Qnt.
!HBO solution *
!our solution
!Est. price (czk)
!note
|-
|fans
|8
|[[http://www.airkinglimited.com/pages/industrial/airmain1.html Air King industrial grade fans]]
|[[ | PC ones]]
|
|
|-
|range sensors
|8
|[[http://www.societyofrobots.com/sensors_sharpirrange.shtml Sharp]]
|[[ | same]]
|
|
|-
|control board
|1
|[[ | Arduino Duemilanove]]
|[[ | custom ATmega8 brd]]
|
|
|-
|power switching board
|1
|[[http://www.controlanything.com/Relay/Relay/RS232_Relay_Controllers | National Control Devices relay board]]
|[[ | custom MOSFET board]]
|
|
|-
|snow
|
|[[ | paper]]
|[[ | to be discussed]]
|
|
|-
|walls
|
|[[ | LED projection]]
|[[ | none yet]]
|
|
|-
|}


/* based on [http://arduino.cc/forum/index.php/topic,7720.0.html link]
== Illustration ==
[[Image:Hngfhg.jpg|Text]]
[[Image:Hngfhg.jpg|Text]]



Latest revision as of 14:17, 18 October 2012


Banik pičo

http://vimeo.com/8196236

Designer's page - a few more words about technologies used in the HBO window

Hardware necessary

Item Qnt. HBO solution * our solution Est. price (czk) note
fans 8 [Air King industrial grade fans] [[ | PC ones]]
range sensors 8 [Sharp] [[ | same]]
control board 1 [[ | Arduino Duemilanove]] [[ | custom ATmega8 brd]]
power switching board 1 [| National Control Devices relay board] [[ | custom MOSFET board]]
snow [[ | paper]] [[ | to be discussed]]
walls [[ | LED projection]] [[ | none yet]]

/* based on link

Illustration

Text


<syntaxhighlight lang="c"> int vetrak = 9; int adc_senzor = 0; float senzor = 0.0; int pwm = 0;


int eliminace_okoli = 30; // random sracky se senzoru

float minimal_pwm = 160; // pro kazdy vetrak jiny!

void setup() {

 // put your setup code here, to run once:
 Serial.begin(9600);

}

void loop() {

 // put your main code here, to run repeatedly: 
 adc_senzor = analogRead(A0);
 //senzor da max 3.2V, tzn prepocitat na plnej rozsah.
 // 5/3.2 = 1.5635

// 3.2V pode datasheetu, coz neni zas tak uplne pravdal. Proto to je jen 1.30

 if (adc_senzor*1.30 > 1023) {
     senzor = 1023;
     Serial.println("preteceni u senzor");
 } else {
   senzor = adc_senzor*1.30;
   
 }
   pwm = senzor/4; // ADC je do 1024, ale PWM jen do 256
   
   if (pwm < eliminace_okoli) {
     pwm = 0; // pri takto nizkych hodnotach povazujeme ze pred vylohou nikdo nestoji
   }
   
   if (pwm > 254) {
     Serial.println("preteceni u pwm"); // kdyby neco, tak nic
   } 
   
   //analogWrite(9, pwm);
 
 /* 
 zjsiteni kolik potrebuje vetrak na roztoceni
 for (int i=0; i <= 250; i=i+10){
     Serial.println(i); 
     analogWrite(9, i);
     delay(1000);
  } 
*/  
 
//  Serial.println(pwm);
 //delay(1000);
  analogWrite(9, pwm);
 

} </syntaxhighlight>