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);
}-
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Peter (neregistrovaný)
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?? -
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