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| Line 41: | Line 41: | ||
   60; i <    |    60; i <    | ||
   255; i++) {  |    255; i++) {  | ||
   analogWrite(pump_in, i); // turn on the pump_in pin with value "i"  |    analogWrite(pump_in, i); // turn on the pump_in pin with value "i"  | ||
   delay(50); // wait for 50 milliseconds  |    delay(50); // wait for 50 milliseconds  | ||
   //Serial.println(i); // print the value of i  |    //Serial.println(i); // print the value of i  | ||
   }  |    }  | ||
   analogWrite(pump_in,    |    analogWrite(pump_in,    | ||
   0); // turn off the pump  |    0); // turn off the pump  | ||
   // delay: wait for some time  |    // delay: wait for some time  | ||
   delay(1000); // wait for one second  |    delay(1000); // wait for one second  | ||
   // enter an eternal loop for prototyping  |    // enter an eternal loop for prototyping  | ||
   // here will be a for loop for sucking out the air again  |    // here will be a for loop for sucking out the air again  | ||
   // while (1) {}  |    // while (1) {}  | ||
   analogWrite(pump_in,    |    analogWrite(pump_in,    | ||
   0); // turn off the pump  |    0); // turn off the pump  | ||
   // make a for loop in order top blow up the balloon while ramping the motor  |    // make a for loop in order top blow up the balloon while ramping the motor  | ||
   for (int i =  |    for (int i =  | ||
   255; i >    |    255; i >  | ||
   60; i--) {  |    60; i--) {  | ||
edits