My Arduino shuts off when i connect ground and 5V pin

rastislav1 · April 19, 2024, 3:41pm

This is amazing it finally works hc-sr04 sensor works flawlessly but my accelerometer doesn't work I think

. Did I solder it badly or it is a bad wiring, it is supposed to light up a red led when it works no ?

jim-p · April 19, 2024, 4:40pm

Well, more problems.

Looks like the code is written for the older MPU6050 and not the MPU9250 that you have.
The I2C interface is 3.3V. Normally that would not be a problem but you already have the LCD connected to the I2C and it uses a 5V interface.

You could buy a 3.3V to 5V voltage tanslator to fix the voltage difference problem but I don't know anything about code for the MPU9250

rastislav1 · April 19, 2024, 4:53pm

Ah I see, thankfully I also have this version, I just need to solder it:

When I solder it, what pins should I connect besides GND and VCC ?

jim-p · April 19, 2024, 4:55pm

The code may work but we still have the 3.3V and 5V problem.
Dont connect either board just et

rastislav1 · April 19, 2024, 5:00pm

Ok could you provide me a image of what voltage translator best fitting for my situation ?
I found this:

this one is 2 channel is it enough ?

jim-p · April 19, 2024, 5:22pm

Be careful!
There are some fake ones on the internet and I think that is one of them

Here are three good ones
You may find them on Amazon and other places

jim-p · April 19, 2024, 5:29pm

Also don't buy this type

rastislav1 · April 19, 2024, 5:32pm

Ok Thank you I will order this part, solder the mpu6050 sensor and I will write back to you. Is there anything that I need to know/buy or any other problems ? If not Thanks again Jim. Could you also help my friend with his project he is struggling pretty hard : Problem with project - #14 by 1marekparek123 Thanks.

jim-p · April 19, 2024, 5:35pm

I can't see what else could go wrong. You basically re-did the entire project.

rastislav1 · April 21, 2024, 7:10am

Hello Jim, I have a problem with deadline. My project has to be completed this Monday but my voltage translator will come Monday afternoon, where I will already hand over the project.
Should I connect the mpu6050 sensor an see what happens or is there a way to rewire something in a different way so it could work? Because I read multiple forums where people connect their sensor in 3.3v pin and it works just fine. Thanks.

jim-p · April 21, 2024, 10:30am

Post the code you are using so I can see what you have so far
In the Arduino IDE click on EDIT the click on Copy for Forum.
Come back and Paste your code here

rastislav1 · April 21, 2024, 10:47am

#include<Wire.h>
#include <LiquidCrystal_I2C.h>          //Liraries for LCD display
#define button 4

const int MPU_addr=0x68;  // I2C address of the MPU-6050
float AcX,AcY,AcZ,GyX,GyY,GyZ,Tmp;

int trigPin = 3;
int echoPin = 2;    //Digital pin input value

float count_shot = 0;
float made_shot = 0;
float field_pct = 0;
int button_pos = 0;
float toll = 0.05;
float normal_z = 0;

LiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE); 

void setup(){
  Wire.begin();
  Wire.beginTransmission(MPU_addr);
  Wire.write(0x6B);  // PWR_MGMT_1 register
  Wire.write(0);     // set to zero (wakes up the MPU-6050)
  Wire.endTransmission(true);
    
  Serial.begin(9600);
  pinMode(button, INPUT);
  
  pinMode(trigPin, OUTPUT);                 //Ultrasonic Pins
  pinMode(echoPin, INPUT);
  
  
  lcd.begin(20, 4);
  lcd.clear();

  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("Shot Tracker");
  lcd.setCursor(0, 1);
  lcd.print("Field Goal:");   //LCD Print
  lcd.setCursor(0, 2);
  lcd.print(made_shot, 0);
  lcd.setCursor(1, 2);
  lcd.print("-");
  lcd.setCursor(2, 2);
  lcd.print(count_shot, 0);
}

void loop(){
  for(int ind = 0; ind < 5; ind++) {
    Wire.beginTransmission(MPU_addr);
    Wire.write(0x3B);  // starting with register 0x3B (ACCEL_XOUT_H)
    Wire.endTransmission(false);
    Wire.requestFrom(MPU_addr,14,true);  // request a total of 14 registers
  
    AcX=Wire.read()<<8|Wire.read();  // 0x3B (ACCEL_XOUT_H) & 0x3C (ACCEL_XOUT_L)   
    AcY=Wire.read()<<8|Wire.read();  // 0x3D (ACCEL_YOUT_H) & 0x3E (ACCEL_YOUT_L)         //X, Y, Z output realing calculations
    AcZ=Wire.read()<<8|Wire.read();
    Tmp=Wire.read()<<8|Wire.read();  // 0x41 (TEMP_OUT_H) & 0x42 (TEMP_OUT_L)
    GyX=Wire.read()<<8|Wire.read();  // 0x43 (GYRO_XOUT_H) & 0x44 (GYRO_XOUT_L)
    GyY=Wire.read()<<8|Wire.read();  // 0x45 (GYRO_YOUT_H) & 0x46 (GYRO_YOUT_L)
    GyZ=Wire.read()<<8|Wire.read();  // 0x47 (GYRO_ZOUT_H) & 0x48 (GYRO_ZOUT_L)// 0x3F (ACCEL_ZOUT_H) & 0x40 (ACCEL_ZOUT_L)
  
    float normal_z = AcZ/16384;
  }
  
  Wire.beginTransmission(MPU_addr);
  Wire.write(0x3B);  // starting with register 0x3B (ACCEL_XOUT_H)
  Wire.endTransmission(false);
  Wire.requestFrom(MPU_addr,14,true);  // request a total of 14 registers

  AcX=Wire.read()<<8|Wire.read();  // 0x3B (ACCEL_XOUT_H) & 0x3C (ACCEL_XOUT_L)   
  AcY=Wire.read()<<8|Wire.read();  // 0x3D (ACCEL_YOUT_H) & 0x3E (ACCEL_YOUT_L)         //X, Y, Z output realing calculations
  AcZ=Wire.read()<<8|Wire.read();
  Tmp=Wire.read()<<8|Wire.read();  // 0x41 (TEMP_OUT_H) & 0x42 (TEMP_OUT_L)
  GyX=Wire.read()<<8|Wire.read();  // 0x43 (GYRO_XOUT_H) & 0x44 (GYRO_XOUT_L)
  GyY=Wire.read()<<8|Wire.read();  // 0x45 (GYRO_YOUT_H) & 0x46 (GYRO_YOUT_L)
  GyZ=Wire.read()<<8|Wire.read();  // 0x47 (GYRO_ZOUT_H) & 0x48 (GYRO_ZOUT_L)// 0x3F (ACCEL_ZOUT_H) & 0x40 (ACCEL_ZOUT_L)

  float ac_x = AcX/16384;
  float ac_y = AcY/16384;
  float ac_z = AcZ/16384;
  float gy_x = GyX/131;
  float gy_y = GyY/131;
  float gy_z = GyZ/131;

  double duration, distance;
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(1000);
  digitalWrite(trigPin, LOW);          //Inputs on Ultrasonic distance sensor
  duration=pulseIn(echoPin, HIGH);

  double dist = (duration/2.0/29.1);         //Calculation for distance

  if (dist < 22 or ac_z < (normal_z - toll) or ac_z > (normal_z + toll)) {
    count_shot += 1;

    if (dist < 22) {
      made_shot += 1;
      delay(2000);
    } else {
      bool flag = 0;
      double time1 = millis();
      double time_diff = 0;
      while (flag == 0 and time_diff <= 2000) {
        double duration, distance;
        digitalWrite(trigPin, HIGH);
        delayMicroseconds(1000);
        digitalWrite(trigPin, LOW);          //Inputs on Ultrasonic distance sensor
        duration=pulseIn(echoPin, HIGH);

        double dist = (duration/2.0/29.1); 

        if (dist < 22) {
          made_shot += 1;            //Calculation for whether shot actually went into hoop
          flag = 1;
          delay(2000 - time_diff);    
        }

        double time2 = millis();
        time_diff = time2 - time1;
      }
//      int extra_time = 2000 - time_diff;
//      delay(extra_time);
    }

//    Serial.print("Field Goal: ");
//    Serial.print(made_shot);
//    Serial.print(" / ");
//    Serial.println(count_shot); 
//    delay(1000); 

    if(count_shot > 0) {
      field_pct = made_shot / count_shot * 100;      //Field Goal % Calculation
    } else {
      field_pct = 0;
    }
    
    lcd.clear();
    lcd.setCursor(0,0);
    lcd.print("Shot Tracker");        //LCD display intially
    lcd.setCursor(0, 1);
    lcd.print("Field Goal:");
    
  
    if(made_shot < 10) {
      lcd.setCursor(0, 2);
      lcd.print(made_shot, 0);
      lcd.setCursor(1, 2);
      lcd.print("-");
      lcd.setCursor(2, 2);
      lcd.print(count_shot, 0);
    } else if(made_shot < 100 and made_shot >= 10) {       
      lcd.setCursor(0, 2);
      lcd.print(made_shot, 0);
      lcd.setCursor(2, 2);
      lcd.print("-");
      lcd.setCursor(3, 2);                                       //LCD Print field goals made / attempted
      lcd.print(count_shot, 0);
    } else {
      lcd.setCursor(0, 2);
      lcd.print(made_shot, 0);
      lcd.setCursor(3, 2);
      lcd.print("-");
      lcd.setCursor(4, 2);
      lcd.print(count_shot, 0);
    }
    
    lcd.setCursor(19, 2);
    lcd.print("%");                                    //LCD print % sign for field goal percentage
    lcd.setCursor(14, 2);
    lcd.print(field_pct, 1);
  }

  //field goal percentage logic

//  Serial.println(field_pct);
  //lcd code
//  LiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE); 
//  LiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE); 
  

  //reset button code
  button_pos = digitalRead(button);
  if(button_pos == 1) {
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("RESET");

    made_shot = 0;
    count_shot = 0;
    field_pct = 0;
    delay(2000);
    lcd.clear();
    lcd.setCursor(0,0);
    lcd.print("Shot Tracker");                //LCD print for if reset button is pressed
    lcd.setCursor(0, 1);
    lcd.print("Field Goal:");
    lcd.setCursor(0, 2);
    lcd.print(made_shot, 0);
    lcd.setCursor(1, 2);
    lcd.print("-");
    lcd.setCursor(2, 2);
    lcd.print(count_shot, 0);
  }
}

I also tested the mpu6050 sensor and its working :

The problem now is hc-sr04 sensor is counting a scored hoop almost every second without movement(its too sensitive?) and a mpu6050 sensor is doing nothing.

jim-p · April 21, 2024, 12:54pm

How did you conect the MPU6050 wihout a voltage translator?
Which Liquid Crystal library are you using?

rastislav1 · April 21, 2024, 1:16pm

I connected MPU6050 like this : VCC to 3.3V
GND to GND
SCL/SDA with LCD display to A4 and A5
ADO pin to breadboard VCC MPU6050 pin
It lights up a green light.

2.I use this library:
NewLiquidCrystal-master.zip (2,2 MB)

jim-p · April 21, 2024, 1:48pm

Leave that disconnected, see if it works.

rastislav1 · April 21, 2024, 3:01pm

Still the same thing mpu6050 is on, but it dosent do anything and the hc-sr04 sensor is counting without movement. I think there is a problem in code that makes mpu not active.

jim-p · April 21, 2024, 3:09pm

I have one more thing you can try.

rastislav1 · April 21, 2024, 3:10pm

I am listening.

jim-p · April 21, 2024, 3:47pm

This program uses a software version for I2C

MPU6050 connections:
VCC --> 3.3V
GND --> GND
SCL --> 7
SDA --> 6

Go to this library and follow the installation instructions.
Click on the <> code button near the top to download the zip file.

Run my program (it's a modification of your program)

#include <Wire.h>
#include <LiquidCrystal_I2C.h>          //Liraries for LCD display
#include <SoftI2C.h>
#define button 4

const int MPU_addr=0x68;  // I2C address of the MPU-6050
int AcX,AcY,AcZ;

const int trigPin = 3;
const int echoPin = 2;    //Digital pin input value

float count_shot = 0;
float made_shot = 0;
float field_pct = 0;
int button_pos = 0;
float toll = 0.05;
float normal_z = 0;

LiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE); 
// LiquidCrystal_I2C lcd(0x27, 20, 4); 

SoftI2C SoftWire = SoftI2C(6,7); // SDA, SCL

void setup(){
  Wire.begin();
  SoftWire.begin();
  SoftWire.beginTransmission(MPU_addr);
  SoftWire.write(0x6B);  // PWR_MGMT_1 register
  SoftWire.write(0);     // set to zero (wakes up the MPU-6050)
  SoftWire.endTransmission(true);
    
  Serial.begin(9600);
  pinMode(button, INPUT);
  pinMode(trigPin, OUTPUT); //Ultrasonic Pins
  pinMode(echoPin, INPUT);
  
  
  lcd.begin(20, 4);
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("Shot Tracker");
  lcd.setCursor(0, 1);
  lcd.print("Field Goal:");   //LCD Print
  lcd.setCursor(0, 2);
  lcd.print(made_shot, 0);
  lcd.setCursor(1, 2);
  lcd.print("-");
  lcd.setCursor(2, 2);
  lcd.print(count_shot, 0);
}

void loop(){
  for(int ind = 0; ind < 5; ind++) {
    SoftWire.beginTransmission(MPU_addr);
    SoftWire.write(0x3B);  // starting with register 0x3B (ACCEL_XOUT_H)
    SoftWire.endTransmission(false);
    SoftWire.requestFrom(MPU_addr,14,true);  // request a total of 14 registers
  
    AcX=SoftWire.read()<<8|SoftWire.read();  // 0x3B (ACCEL_XOUT_H) & 0x3C (ACCEL_XOUT_L)   
    AcY=SoftWire.read()<<8|SoftWire.read();  // 0x3D (ACCEL_YOUT_H) & 0x3E (ACCEL_YOUT_L)         //X, Y, Z output realing calculations
    AcZ=SoftWire.read()<<8|SoftWire.read();
  
    float normal_z = float(AcZ/16384);
  }
  
  SoftWire.beginTransmission(MPU_addr);
  SoftWire.write(0x3B);  // starting with register 0x3B (ACCEL_XOUT_H)
  SoftWire.endTransmission(false);
  SoftWire.requestFrom(MPU_addr,14,true);  // request a total of 14 registers

  AcX=SoftWire.read()<<8|SoftWire.read();  // 0x3B (ACCEL_XOUT_H) & 0x3C (ACCEL_XOUT_L)   
  AcY=SoftWire.read()<<8|SoftWire.read();  // 0x3D (ACCEL_YOUT_H) & 0x3E (ACCEL_YOUT_L)         //X, Y, Z output realing calculations
  AcZ=SoftWire.read()<<8|SoftWire.read();

  float ac_x = float(AcX/16384);
  float ac_y = float(AcY/16384);
  float ac_z = float(AcZ/16384);

  double duration, distance;
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(12);
  digitalWrite(trigPin, LOW);          //Inputs on Ultrasonic distance sensor
  duration=pulseIn(echoPin, HIGH);

  double dist = (duration/2.0/29.1);         //Calculation for distance

  if (dist < 22 or ac_z < (normal_z - toll) or ac_z > (normal_z + toll)) {
    count_shot += 1;

    if (dist < 22) {
      made_shot += 1;
      delay(2000);
    } else {
      bool flag = 0;
      double time1 = millis();
      double time_diff = 0;
      while (flag == 0 and time_diff <= 2000) {
        double duration, distance;
        digitalWrite(trigPin, HIGH);
        delayMicroseconds(12);
        digitalWrite(trigPin, LOW);          //Inputs on Ultrasonic distance sensor
        duration=pulseIn(echoPin, HIGH);

        double dist = (duration/2.0/29.1); 

        if (dist < 22) {
          made_shot += 1;            //Calculation for whether shot actually went into hoop
          flag = 1;
          delay(2000 - time_diff);    
        }

        double time2 = millis();
        time_diff = time2 - time1;
      }
//      int extra_time = 2000 - time_diff;
//      delay(extra_time);
    }

//    Serial.print("Field Goal: ");
//    Serial.print(made_shot);
//    Serial.print(" / ");
//    Serial.println(count_shot); 
//    delay(1000); 

    if(count_shot > 0) {
      field_pct = made_shot / count_shot * 100;      //Field Goal % Calculation
    } else {
      field_pct = 0;
    }
    
    lcd.clear();
    lcd.setCursor(0,0);
    lcd.print("Shot Tracker");        //LCD display intially
    lcd.setCursor(0, 1);
    lcd.print("Field Goal:");
    
  
    if(made_shot < 10) {
      lcd.setCursor(0, 2);
      lcd.print(made_shot, 0);
      lcd.setCursor(1, 2);
      lcd.print("-");
      lcd.setCursor(2, 2);
      lcd.print(count_shot, 0);
    } else if(made_shot < 100 and made_shot >= 10) {       
      lcd.setCursor(0, 2);
      lcd.print(made_shot, 0);
      lcd.setCursor(2, 2);
      lcd.print("-");
      lcd.setCursor(3, 2);                                       //LCD Print field goals made / attempted
      lcd.print(count_shot, 0);
    } else {
      lcd.setCursor(0, 2);
      lcd.print(made_shot, 0);
      lcd.setCursor(3, 2);
      lcd.print("-");
      lcd.setCursor(4, 2);
      lcd.print(count_shot, 0);
    }
    
    lcd.setCursor(19, 2);
    lcd.print("%");                                    //LCD print % sign for field goal percentage
    lcd.setCursor(14, 2);
    lcd.print(field_pct, 1);
  }

  //field goal percentage logic

//  Serial.println(field_pct);
  //lcd code
//  LiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE); 
//  LiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE); 
  

  //reset button code
  button_pos = digitalRead(button);
  if(button_pos == 1) {
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("RESET");

    made_shot = 0;
    count_shot = 0;
    field_pct = 0;
    delay(2000);
    lcd.clear();
    lcd.setCursor(0,0);
    lcd.print("Shot Tracker");                //LCD print for if reset button is pressed
    lcd.setCursor(0, 1);
    lcd.print("Field Goal:");
    lcd.setCursor(0, 2);
    lcd.print(made_shot, 0);
    lcd.setCursor(1, 2);
    lcd.print("-");
    lcd.setCursor(2, 2);
    lcd.print(count_shot, 0);
  }
}

rastislav1 · April 21, 2024, 3:55pm

Wow Jim, the hc-sr04 sensor works perfectly now. Only problem now is that the mpu6050 dosent count misses but acts as a second sensor (it counts makes not misses when I touch it). Is there a fix for that ?

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