digitalWrite(pin, HIGH) with GPIO 4 doesn't goes HIGH

[nickoloss]

Hardware:

Board: ESP32 PICO Dev Module
Core Installation/update date: 11/March/2018
IDE name: Arduino IDE 1.85
Flash Frequency: 40Mhz
Upload Speed: 921600

Description:

Describe your problem here

Sketch:

----------------- ElectricEngine.hpp ---------------------

#ifndef ElectricEngine_hpp
#define ElectricEngine_hpp

#include "Arduino.h"


#define clockwise_pin 4
#define counterclockwise_pin 12
#define pwm_pin 24

class ElectricEngine {
    
    int oldDirection = 0;
    int pwm_pin_channel = 1;
    void setClockwiseDirection();
    void setCounterclockwiseDirection();
    
public:
    ElectricEngine();
    void run(int speed, int direction);
    void stop();
};

#endif /* ElectricEngine_hpp */

----------------- ElectricEngine.cpp ---------------------

#include "ElectricEngine.hpp"

ElectricEngine::ElectricEngine() {
    
    
    pinMode(pwm_pin, OUTPUT);
    pinMode(clockwise_pin, OUTPUT);
    pinMode(counterclockwise_pin, OUTPUT);
    // Initialize channels
    // channels 0-15, resolution 1-16 bits, freq limits depend on resolution
    // ledcSetup(uint8_t channel, uint32_t freq, uint8_t resolution_bits);
    ledcAttachPin(pwm_pin, pwm_pin_channel);
    ledcSetup(pwm_pin_channel, 500, 8);
    

}

void ElectricEngine::run(int speed, int direction) {
    
    if (direction == 1 ) {
        setClockwiseDirection();
        ledcWrite(pwm_pin_channel, speed);
        oldDirection = 1;
    } else if (direction == -1 ) {
        setCounterclockwiseDirection();
        ledcWrite(pwm_pin_channel, speed);
        oldDirection = -1;
    }
    

};

void ElectricEngine::stop() {
    ledcWrite(pwm_pin_channel, 0);
    digitalWrite(counterclockwise_pin, LOW);
    digitalWrite(clockwise_pin, LOW);
};

void ElectricEngine::setClockwiseDirection() {
    digitalWrite(counterclockwise_pin, LOW);
    digitalWrite(clockwise_pin, HIGH);
};

void ElectricEngine::setCounterclockwiseDirection() {
    digitalWrite(clockwise_pin, LOW);
    digitalWrite(counterclockwise_pin, HIGH);
};

---------------------- sketch.ino -------------------

include "ElectricEngine.hpp"

ElectricEngine engine;

setup(){

}

loop(){
engine.run(200, 1);
delay(1000);
engine.stop();
engine.run(200, -1);
delay(1000);

}

Debug Messages:

GPIO 12 goes HIGH as supposed
GPIO 4 stays LOW ---> Should go HIGH

[nickoloss]

Each of theese Pins should go HIGH and LOW after 1 Second and each other. But only GPIO 12 is doing that.

loop(){
   engine.run(200, 1); //       PIN 4 HIGH  and  PIN 12 LOW.  
   delay(1000);
   engine.stop(); 
   engine.run(200, -1); //      PIN 4 LOW  and  PIN 12 HIGH
   delay(1000);

}

[liebman]

This works for me. I connected a red LED& 220 ohm resister from each pin to each pin to +3.3v. The LEDs alternate being lit.

#include "Arduino.h"

void setup()
{
    pinMode(4,  OUTPUT);
    pinMode(12, OUTPUT);
}

void loop()
{
    static bool state = false;
    digitalWrite(4,  state ? HIGH : LOW);
    digitalWrite(12, state ? LOW  : HIGH);
    state = !state;
    delay(1000);
}

[nickoloss]

I can confirm that. Wonder why my sketch is not working. Thankyou.

[rei-vilo]

Works on pin 4, but why not for the other pins?