Napadlo m\u011b vyzkou\u0161et analogov\u00fd vstup. P\u0159ipojil jsem na n\u011bj tahov\u00fd potenciometr, v\u00fdsledek jsem nechal pos\u00edlat na s\u00e9riov\u00fd port, kde jsem zjistil, \u017ee m\u00e1 rozsah cca 0-1000. Jako v\u00fdstup jsem zvolil p\u011btici LEDek, pro ka\u017edou jsem vy\u010dlenil p\u011btinu nam\u011b\u0159en\u00e9 hodnoty a podle toho nastavil jejich sv\u00edcen\u00ed.<\/p>\n\n\n\n
Program tentokr\u00e1t s mal\u00fdm vyu\u017eit\u00edm pole (Array) abych pochopil rozd\u00edl oproti m\u00e9 „mate\u0159\u0161tin\u011b“ PHP:<\/p>\n\n\n\n
int sensorPin = A0; \/\/ select the input pin for the potentiometer (or other analog input)\nint pinArray[] = {2,3,4,5,6}; \/\/ array of outputs LED pins\nint count = 0;\nint sensorValue = 0; \/\/ variable to store the value coming from the sensor\n\nvoid setup() { \/\/ declare the pinArray as an OUTPUT:\n for (count=0; count<6; count++) {\n pinMode(pinArray[count], OUTPUT);\n }\n}\n\nvoid loop() { \/\/ read the value from the sensor:\n sensorValue = analogRead(sensorPin); \/\/ we have 5 LEDs for 0-1000 range of senzorValue\n if (sensorValue>0){digitalWrite(pinArray[0], HIGH);} \/\/ 1-200 lights 1 LED\n if (sensorValue>201){digitalWrite(pinArray[1], HIGH);} \/\/ 201-400 lights 2 LED\n if (sensorValue>401){digitalWrite(pinArray[2], HIGH);} \/\/ 401-600 lights 3 LED\n if (sensorValue>601){digitalWrite(pinArray[3], HIGH);} \/\/ 601-800 lights 4 LED \n if (sensorValue>801){digitalWrite(pinArray[4], HIGH);} \/\/ 801-1000 lights 5 LED\n delay(50);\n for (count=0;count<6;count++) {\n digitalWrite(pinArray[count], LOW);\n }\n}<\/code><\/pre>\n\n\n\nOtev\u0159\u00edt projekt v \n