Arduino

Tomáš Kavalek, 15. 07. 2010, 16:51 v kategorii Ostatní, štítky: arduino

Na ROOT.cz začal vycházet seriál Na Internet s Arduinem - jelikož jsem blázen a musím všechno vyzkoušet, tak jsem si Arduino Duemilanove objednal. Společně s ním jsem do „košíku“ přihodil USB kabel a Ethernet Shield. Co mne velice překvapilo byl přístup Czechduino. Člověk, který se velmi těší až si něco vyzkouší, nemusí být v okamžiku dostatečně vybaven součástkami. Konkrétně například já - doma mám součástek dost, ale vyzvedl jsem na poště balíček a odjel na chatu. Až tam jsem si uvědomil, že jsem si s sebou nevzal ani „jednu blbou LEDku“. Velice mne tedy překvapilo, když jsem při rozdělání balíčku narazil na dvě bílé LEDky. Sice se jedná o součástky v ceně cca 20 Kč (když hodně), ale potěšilo mne, že dodavatel zaslal zařízení tak, že ho lze hned vyzkoušet - např. podle jednoho z dílů seriálu.

Jelikož jsem na chatu bral notebook s Windows XP, tak tu mám pár postřehů pro méně zdatné uživatele: v článku zmiňovaný FTDI (FT232R) ovladač lze stáhnout např. zde - http://www.ftdichip.com/Drivers/VCP.htm a ve Správci zařízení - Porty (COM a LPT) najít USB Serial Port a tím zjistíme, na kterém COM portu je Arduino připojeno.

Postup je následně triviální, nainstalovat FTDI ovladač, nainstalovat IDE, připojit Arudino, spustit IDE, nastavit COM port a zařízení na Arduino 328 (defaultně) a začít pracovat.

Veškeré další postupy jsou uvedeny v článku seriálu, možná bych si, vzhledem k tomu, že přišly dvě LEDky, dovolil mírnou úpravu ukázkového programu. Ke správné funkci je potřeba zapojit anodu první LED do 12 a anodu druhé LED do 13, katody obou do GND. Nahrát do Arduina následující program:

#define LED1 13
#define LED2 12

void setup()   {
  pinMode(LED1, OUTPUT);
  pinMode(LED2, OUTPUT);
}
void loop()
{
  digitalWrite(LED1, HIGH);
  digitalWrite(LED2, LOW);
  delay(1000);
  digitalWrite(LED1, LOW);
  digitalWrite(LED2, HIGH);
  delay(1000);
}

Komentáře (113)

17. 07. 2010, 22:23 Tomáš Kavalek napsal:
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19. 07. 2010, 12:47 Peter napsal:
arduino ma uz na doske jednu ledku (piaty bit "B" portu) takze aj bez tych pribalenych by bolo co skusat
http://arduino.cc/en/uploads/Main/arduino-duemilanove-schematic.pdf

... a ako tak pozeram Vy mate jednu z tych dvoch prave na tom digitalnom vystupe..
teda neblikala aj mala (SMD vyhotovenie) ledka na doske arduina spolu s jednou z tych dvoch??
19. 07. 2010, 14:53 mtd napsal:
ucim ted jednoho kamarada zachazet s avr. programujeme to primo v cecku, tj. bez arduina a wiring. chci se zzeptat - byl by pripadne zajem, abych na rootu popsal par jednoduchych projektu, na kterych ho to ucim?
19. 07. 2010, 16:25 nietze napsal:
@ autor:vdaka za postrech, tiez by som sa chcel zacat hrat s arduinom, resp s niecim podobnym
@ mtd: za mna urcite hej, len by bolo super keby to bolo naozaj pre blbcov ktori nikdy nic podobne nerobili
19. 07. 2010, 17:49 astray napsal:
Copak ten USB/serial driver není v jádře?
20. 07. 2010, 06:24 ... napsal:
@mtd: mna to tiez zaujima, hlavne to ako to funguje tam dole, ked clovek nema taky high-level interface ako ponuka Arduino.
20. 07. 2010, 12:38 Martin napsal:
@ mtd: take bych se velice rad poucil o praci s avr bez arduina, ale jsem uplny laik, takze by to muselo byt hodne pro blbce
21. 07. 2010, 12:27 Stanley napsal:
Přimlouvám se za seriál AVR pro začátečníky.
21. 07. 2010, 14:21 majlo napsal:
@mtd: tiez by som tu rad videl clanok o praci s avr pre zaciatocnikov
21. 07. 2010, 17:05 mtd napsal:
[4][6][7][8][9]: ok, tak ja ten serial promyslim, proberu s redakci a uvidime.
23. 07. 2010, 17:50 covex napsal:
AVRek je strasne moc. Ve vetsine pripadu tak neni problem s nimi pracovat, problem je nastudovat architekturu toho ktereho, pripadne ruzne stacky ktere jsou dostupne. U sebe jsem popsal jak zacit s AVR v Linuxu http://www.lowlevel.cz/log/pivot/entry.php?id=179 - ale budete mit presne problem o kterem pisu vyse - muzete si koupit milion ruznych vyvojovych desticek a univerzalni "navod" neexistuje.
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