Esp32 Ble/Wifi AP/STA_ESP_Now/ 433MHZ

[patrica]

[color=#202124]Hey ,

I would like to control a program remotely via BLE, wifi or espnow I am a beginner and cannot 
get the code written. 
How do you write this program in a receiver and transmitter code?

This code controls 2 steppers via pot meters.

How do I write the program for remote analog control via eg esp_now or 433MHz module?
How do I write this bluetooth control program for Android or web?

This is the code I would have liked to write for the receiver and transmitter.

Greetings Patricia


[/color][color=#202124]#include <Stepper.h>
#include <esp_now.h>
#include <WiFi.h>

uint8_t broadcastAddress[] = {3C:61:05:29:3E:FC};

#define STEPSREV 4096 // 64(fullsteps) * 64 (reduction ratio)
#define SPEED 4 // motor speed (RPM)

#define COIL_1X 11
#define COIL_2X 9
#define COIL_3X 10
#define COIL_4X 8

#define COIL_1Y 7
#define COIL_2Y 5
#define COIL_3Y 6
#define COIL_4Y 4

#define POT_X 0
#define POT_Y 1 
#define TIMEOUT 1000 //Turns off after 1 sec of inactivity.
#define NOISE 8 //inmunity in steps because analog noisy readings.

// create the instances of the stepper class.
Stepper stepperX(STEPSREV, COIL_1X, COIL_2X, COIL_3X, COIL_4X);
Stepper stepperY(STEPSREV, COIL_1Y, COIL_2Y, COIL_3Y, COIL_4Y);

int potValX,potValY; // potentiometers analog readings
int Xpos,Ypos; // Actual steppers positions(0-4096)->(0-360°)
int newXpos, newYpos; // New steppers positions
unsigned long stampX, stampY; // last move time stamped.

//============== functions ====================================================

//Read the potentiometers and map the reading to mach 360 degrees.
void readPots(){
 potValX = analogRead(POT_X); // read POT_X value (0-1023).
 potValY = analogRead(POT_Y); // read POT_Y value (0-1023).
 newXpos= map(potValX,0,1023,0,2047); // Map pot X range to one stepper turn.
 newYpos= map(potValY,0,1023,0,2047); // Map pot Y range to the stepper turn.
}
 
//-----------------------------------------------------------------------------
// Aproach stepperX to the newX position.
void aproachX(int newX){
 int Xdir = Xpos<newX ? 1 : -1;
 stepperX.step(Xdir); // move one step in the Xdir direction.
 Xpos += Xdir; // update Xpos.
 stampX = millis(); // stamp actual time.
 }

//-----------------------------------------------------------------------------
// Aproach stepperY to the newY position.
void aproachY(int newY){
 int Ydir = Ypos<newY ? 1 : -1;
 stepperY.step(Ydir); // move one step in the Ydir direction.
 Ypos += Ydir; // update Ypos.
 stampY = millis(); // stamp actual time.
 }

//-----------------------------------------------------------------------------
//Check for inactivity and turn off the steppers coils to save battery.
void CheckTimeout(){
 if((millis() - stampX) > TIMEOUT){ //Turn Off StepperX coils.
 digitalWrite(COIL_1X, LOW);
 digitalWrite(COIL_2X, LOW);
 digitalWrite(COIL_3X, LOW);
 digitalWrite(COIL_4X, LOW);
 }
 if((millis() - stampY) > TIMEOUT){ //Turn Off StepperY coils.
 digitalWrite(COIL_1Y, LOW);
 digitalWrite(COIL_2Y, LOW);
 digitalWrite(COIL_3Y, LOW);
 digitalWrite(COIL_4Y, LOW);
 } 
}


//=================== setup ===================================================
void setup(){
 stepperX.setSpeed(SPEED); // set the X motor speed.
 stepperY.setSpeed(SPEED); // set the Y motor speed.
 readPots();
 Xpos = newXpos;
 Ypos = newYpos;
}

//================= main loop =================================================
void loop(){
 readPots();
//if diference is greater than NOISE move steppers.
 if(abs(newXpos - Xpos)> NOISE) aproachX(newXpos);
 if(abs(newYpos - Ypos)> NOISE) aproachY(newYpos);

 CheckTimeout(); //check for inactivity.

}[/color]

[J-M-L]

This forum is not meant to do your homework...

start by the beginning

• read forum guidelines
• decide what technology you want to use for remote control
• study the zillions examples that were already posted so that you can understand what you do
• give it a try. If it does not work, post your questions and your code here and you're likely going to get help

————

Please correct your post above and add code tags around your code:
[code]`` [color=blue]// your code is here[/color] ``[/code].

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