Control a speed of a blender

Other Hardware Motors, Mechanics, Power and CNC
1

i'm trying to do a blender
my code need to control the speed of a motor

1 push button need to pulse 1 sec on and 1 sec off
1 push button turn of the blender
1 push button control 50% of the motor speed
1 push button control 100% of the motor speed

int led = 2;

byte port[4] = {3, 4, 5, 6};
int press;
int on = 0;



void setup() {
  // put your setup code here, to run once:
  pinMode(led, OUTPUT);
  pinMode(port[0], INPUT);
  pinMode(port[1], INPUT);
  pinMode(port[2], INPUT);
  pinMode(port[3], INPUT);
  }


void loop() {
  
   
  press = digitalRead(port);
  if(press == HIGH){
    delay(300);
    switch(on){
      case 0:
        analogWrite(led, 255);
        on = 2;
        break;
      case 1:
        analogWrite(led, 255 * 0.5);
        on = 1;
        break;
      case 2:
        analogWrite(led, 0);
        on = 0;
        break;
      case 3:
        analogWrite(led, 255);
        delay(1000);
        analogWrite(led, 0);
        on = 3;
        break;
      default:      
        analogWrite(led, 0);
        on = 0;
        break;
    }     
  }
 }

i'm using a led just for tests but i'll use H bridge l298n or l293d.

my code show this error "warning: invalid conversion from 'byte* {aka unsigned char*}' to 'uint8_t {aka unsigned char}' [-fpermissive]
press = digitalRead(port);
"

2

You are missing any attempt to measure the speed of the motor. You cannot control the speed unless you can measure the speed. Perhaps you mean to just have a low speed and a high speed and guess at the actual speed. SO VERY much depends on the type of motor in the blender.
Paul

3

Things are not computing for me. A blender is a digital mixer or an appliance in my way of thinking. The appliance has a line powered motor which the L298 cannot control. By speed what is your accuracy requirement; is it it typical appliance control or more precise? Maybe you should post a schematic, not a frizzy drawing showing all connections including power and ground.

4

Most mixers have universal motors which can be triac-controlled. However if its not a
universal motor you almost certainly won't be able to control it at all.

If you post full details of the hardware involved, that would answer many questions.

5

Perhaps in this from op:

i'm trying to do a blender

... "do" means they're trying to build a blender with a dc motor, not control an existing mains driven one?

That's just a guess though; circuit and other details needed as already asked.

6

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