Nano + PIR + sequence speed DC motor

hello,

i used code (bellow) on nano detect presence , turn on dc motor.





i make launch "speed sequence" instead.

something

0-1000ms = 0 max speed (exponential)
1000ms-1200ms = 0 speed
1200ms-2200ms = 0 max speed (exponential)
2200ms-2400ms = 0 speed
2400ms-6000ms = max speed


something that, choregraphy dc motor.

i m aware big change code bellow, hope can help







// constant won't change:
const int  pirpin = 2;    // pin pushbutton attached to
const int ledpin = 13;       // pin led attached to

// variables change:
bool piroutput = false;   // counter number of button presses
int pirstate = 0;         // current state of button
int lastpirstate = 0;     // previous state of button

void setup() {
 // initialize  pin 2 input:
 pinmode(pirpin, input);
 // initialize led output:
 pinmode(ledpin, output);
}


void loop() {
 // read input pin:
 pirstate = digitalread(pirpin);

 // compare buttonstate previous state
 if (pirstate != lastpirstate) {
   // if state has changed, increment counter
   if (pirstate == high) {
     // if current state high button
     // wend off on:
     piroutput = true;
   
   }
   else {
     // if current state low button
     // wend on off:
  //   serial.println("off");
   piroutput = false;
   }
   // delay little bit avoid bouncing
   delay(50);
 }
 // save current state last state,
 //for next time through loop
 lastpirstate = pirstate;


 // turns on led every time pir sensor detects motion
 if (piroutput  == true) {
   digitalwrite(ledpin, high);
 } else {
   digitalwrite(ledpin, low);
 }

}

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