After sooo many different suggestions.. things STILL will not work.

I can NOT get these super-mini ESP32-S3 boards to compile.. ( I believe it happened once..somehow? random button clicking from many different threads/searches).. but even after the '(I believe)' upload.. it was still blinking the led..

And now after so many attempts. things will just NOT compile. Looking for some help on how to get this stupid Arduino IDE compliant to work with these boards.

Tried different UPLOAD speed/settings (was told this is not an issue after reading about it so many times?)

IDE has been acting very weird. Sometimes COM3, sometimes COM3 with jTAG.. and now COM3 ESP32 family device?

I am confused on where things are to even be installed/put?

Originally: user/documents/Arduino >

Sometimes: C:\program files (x86)\Arduino

So I am very unclear on WHAT is to be here.. and WHERE it is to be placed/run..etc.

Current:

Arduino IDE
Board: ESP32S3 Dev Module
Port: COM3 (ESP32 Family Device)

Currently (after so much messing around)

I open IDE, I hit UPLOAD: (it takes forever to 'compile')...

I am now seeing this error?

xtensa-esp32s3-elf-g++ does not exist?????

What am I missing here?

Thanks!!

Or can only the apc220 transmit and recieve to another apc220? And if so, what are good options for cheaper rf modules while having about the same range?

Hello! I'm doing a project for my girlfriends christmas present and im trying to use a DF mini player to play a song and a rotary encoder to change the volume and pause/play when needed. So far I have this code but the rotary encoder has trouble being consistent when changing the volume or just starts acting on its own. I have done separate code where i use it just by itself and it works fine but when i group it with the DF mini and the 0.98" tft screen on the arduino it seems to start having the issues again if anyone could help i would greatly appreciate it and happy holidays!

#include <Wire.h>

#include <Adafruit_GFX.h>

#include <Adafruit_SSD1306.h>

#include <SoftwareSerial.h>

#include <DFRobotDFPlayerMini.h>

// OLED display settings

#define SCREEN_WIDTH 128

#define SCREEN_HEIGHT 64

#define OLED_RESET -1

Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

// DFPlayer Mini settings

SoftwareSerial mySoftwareSerial(10, 11); // RX, TX pins for DFPlayer Mini

DFRobotDFPlayerMini myDFPlayer;

// Rotary encoder and button settings

const int encoderPinA = 2; // CLK pin for rotary encoder

const int encoderPinB = 3; // DT pin for rotary encoder

const int buttonPin = 4; // SW pin for push button

int volume = 5; // Start volume at 5

int lastEncoderStateA = LOW;

int lastEncoderStateB = LOW;

bool rotating = false;

bool lastButtonState = HIGH;

bool buttonPressed = false;

// Time tracking

unsigned long songDuration = 283000; // Song duration in ms (4:43 = 283000 ms)

unsigned long songStartTime = 0;

int elapsedSeconds = 0;

int elapsedMinutes = 0;

// Debounce settings

unsigned long lastDebounceTime = 0;

unsigned long debounceDelay = 10; // debounce time; increase if needed

void setup() {

// Serial communication

Serial.begin(9600);

mySoftwareSerial.begin(9600);

// Pin configurations

pinMode(encoderPinA, INPUT);

pinMode(encoderPinB, INPUT);

pinMode(buttonPin, INPUT_PULLUP);

// Initialize DFPlayer Mini

if (!myDFPlayer.begin(mySoftwareSerial)) {

Serial.println("DFPlayer Mini not detected!");

while (true);

}

Serial.println("DFPlayer Mini ready.");

myDFPlayer.volume(volume); // Set initial volume

myDFPlayer.play(1); // Play track 1

songStartTime = millis();

// Initialize OLED display

if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { // Address 0x3C for 128x64

Serial.println(F("SSD1306 allocation failed"));

while (1);

}

display.clearDisplay();

display.display();

// Show the initial image

displayImage();

}

void loop() {

// Handle rotary encoder for volume control

handleEncoder();

// Handle play/pause button

handleButton();

// Update elapsed time

updateElapsedTime();

// Update OLED display

updateOLED();

}

void handleEncoder() {

// Read the current state of the encoder pins

int currentStateA = digitalRead(encoderPinA);

int currentStateB = digitalRead(encoderPinB);

// Check if the state of A has changed

if (currentStateA != lastEncoderStateA) {

unsigned long currentTime = millis();

if ((currentTime - lastDebounceTime) > debounceDelay) { // Check if debounce delay has passed

rotating = true;

// Determine the direction of rotation

if (currentStateB != currentStateA) {

volume++; // Clockwise, increase volume

} else {

volume--; // Counterclockwise, decrease volume

}

// Constrain volume between 0 and 30

volume = constrain(volume, 0, 30);

// Update volume on DFPlayer Mini

myDFPlayer.volume(volume);

Serial.print("Volume: ");

Serial.println(volume);

// Update the last debounce time

lastDebounceTime = currentTime;

}

}

// Update the last known state

lastEncoderStateA = currentStateA;

rotating = false;

}

void handleButton() {

bool currentButtonState = digitalRead(buttonPin);

if (currentButtonState == LOW && lastButtonState == HIGH) {

delay(50); // Debounce delay

buttonPressed = !buttonPressed;

if (buttonPressed) {

myDFPlayer.pause();

Serial.println("Paused");

} else {

myDFPlayer.start();

Serial.println("Playing");

songStartTime = millis() - ((elapsedMinutes * 60 + elapsedSeconds) * 1000); // Adjust start time

}

}

lastButtonState = currentButtonState;

}

void updateElapsedTime() {

if (!buttonPressed) { // Only update time if playing

unsigned long currentTime = millis();

unsigned long elapsedTime = currentTime - songStartTime;

elapsedMinutes = (elapsedTime / 1000) / 60;

elapsedSeconds = (elapsedTime / 1000) % 60;

}

}

void displayImage() {

// Replace this with the bitmap you want to display

const unsigned char PROGMEM myImage[] = {

// Example bitmap data

0xFF, 0x81, 0x81, 0x81, 0xFF, 0x00, 0x00, 0x00, // Top line

// Add more rows for a full 128x64 image

};

display.clearDisplay();

display.drawBitmap(0, 0, myImage, SCREEN_WIDTH, SCREEN_HEIGHT, SSD1306_WHITE);

display.display();

}

void updateOLED() {

display.clearDisplay(); // Clear the display

// Animated Sound Waves

if (!buttonPressed) { // Only animate when playing

for (int i = 0; i < 5; i++) {

int barHeight = random(5, 20); // Randomized heights

display.fillRect(10 + (i * 8), 20 - barHeight / 2, 6, barHeight, SSD1306_WHITE);

}

} else {

// Static sound bars when paused

for (int i = 0; i < 5; i++) {

display.fillRect(10 + (i * 8), 10, 6, 10, SSD1306_WHITE);

}

}

// Song Progress Bar

unsigned long elapsedTimeMs = (elapsedMinutes * 60 + elapsedSeconds) * 1000;

int progress = map(elapsedTimeMs, 0, songDuration, 0, SCREEN_WIDTH - 20);

display.drawRect(10, 40, SCREEN_WIDTH - 20, 5, SSD1306_WHITE); // Outline

display.fillRect(10, 40, progress, 5, SSD1306_WHITE); // Fill bar

// Song Title ("Space and Time")

display.setTextSize(1); // Smaller text size for title

display.setTextColor(SSD1306_WHITE);

int titleWidth = 6 * 14; // "Space and Time" has 14 characters, each 6 pixels wide

display.setCursor((SCREEN_WIDTH - titleWidth) / 2, 32); // Center the title horizontally above the progress bar

display.println(F("Space and Time")); // Song title

// Time Indicators

display.setCursor(10, 48);

display.print(formatTime(elapsedMinutes, elapsedSeconds)); // Elapsed time

display.setCursor(SCREEN_WIDTH - 35, 48);

display.println("4:43"); // Fixed song duration

// Volume Indicator

display.setCursor(0, 0);

display.setTextSize(1);

display.setTextColor(SSD1306_WHITE);

display.print("Volume: ");

display.println(volume);

// Play/Pause Icon

if (buttonPressed) {

display.fillRect(60, 50, 4, 10, SSD1306_WHITE); // Pause bar 1

display.fillRect(68, 50, 4, 10, SSD1306_WHITE); // Pause bar 2

} else {

display.fillTriangle(60, 50, 60, 60, 70, 55, SSD1306_WHITE); // Play icon

}

display.display(); // Update the display

}

String formatTime(int minutes, int seconds) {

String timeString = String(minutes) + ":";

if (seconds < 10) timeString += "0"; // Add leading zero

timeString += String(seconds);

return timeString;

}

I know this channel is about Arduino but before implementing an Arduino in my project I needed some help.

I'm using DFPlayer Mini in my project but it doesn't always turn on when I turn on the switch and sometimes it turns off halfway through, how do I fix it?

https://reddit.com/link/1hiu0yp/video/hqbztw1dl28e1/player

I would like to know the value of the current when connecting a module to the 5V pin or an i/o pin without a resistor in between the board and the module.

To know the value of i, you need to divide V/R but I don't have a value for "R" because there is no resistor.

Could someone help me with this?

Thx in advance.

I ordered one of these boards due to its Wi-Fi and Bluetooth capabilities but I cannot seem to get it to work with Arduino IDE. I am fairly new to Arduino stuff in general but I was wondering if anyone knew anything about this and could help me out. Thank you.

Here is a link to the board that I bought:

https://www.amazon.com/gp/product/B0718T232Z/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

These are the error messages I receive:

COM Port 1 ---

A fatal error occurred: Failed to connect to ESP32: No serial data received.

For troubleshooting steps visit: https://docs.espressif.com/projects/esptool/en/latest/troubleshooting.html

Failed uploading: uploading error: exit status 2

COM Port 6 ---

A fatal error occurred: Could not open COM6, the port doesn't exist

Failed uploading: uploading error: exit status 2

COM Port 7 ---

A serial exception error occurred: Write timeout

Note: This error originates from pySerial. It is likely not a problem with esptool, but with the hardware connection or drivers.

For troubleshooting steps visit: https://docs.espressif.com/projects/esptool/en/latest/troubleshooting.html

Failed uploading: uploading error: exit status 1

My arduino Uno is running the prev code i upload now when i'm trying to upload a new code it says done uploading but the prev code still running

Very much a beginner question.

I am working towards a setup that is pretty similar to a diagram I found on github:

Leave out the servo, add some more motors and 2 batteries and that's what I am going for

I would like to add some leds, however I doubt I can connect them to the batteries without adding resistance. 2 White ones and 4 red ones with the following specifications:

https://preview.redd.it/qizau2yly08e1.png?width=247&format=png&auto=webp&s=0b48a59d64d9e58a3346f7bf0e8c61eb66d9a4d3

The battery pack should be around 5-7ish V as far as I am aware, which is the same as 2 white leds or 4 red leds added up, 5.6-7.2V and 6.2-9.2V (pure coincidence by the way).

Could I add them in 2 seperate loops, or will I need to add resistors to prevent the current from going far above 20mA per loop? If that is the case, where to the Sensor Shield should I add the, for a voltage that is in line?

I don't need them to interact with the arduino, always being on is fine. The brighter the better.

Thx :)

Hi, I'll start the EE Degree soon and I'd like to start getting hands on in very basics projects to get experience and be more familiar with the subfield of electronics and automatization since is the field that more interests me alongside with the telecommunications. So I wanted to ask what to build, where can I find some cool ideas to do, or maybe some YouTube channels that you recommend, some guides, etc.

Obviously I've searched info by my own but I'd like to read your recommendations for someone that is just starting in this world.

Ty!

Hi I have a STM32F373 are there any packages for arduino that supports it as the stmcore doesn't

Hello, I'm quite interrested in learning arduino for a long time but never had a project to work on until now.

I have a motorized wing on a project car.

Atm the DC motor is controlled via small boards/ relay / limit switch.

I could divide the project in different steps wich is good :

step 1 → (basicly same as is it is now) :

• push the up switch → move up 2sec (or hit limit-switch)
• push down switch → move down 2sec (or hit limit switch)

step 2 → One push switch + startup procedure :

• push the button switch → move to up position
• push the (same) button switch → move to down position
• Power on (car contact) → move to up position then to down position.
• Power off → move to down position

Step 3 → Air brake/active aero (quite easy step actually, juste need to had another limit-switch)

• push the button switch → move to up position
• push the (same) button switch → move to down position
• Power on (car contact) → move to up position then to down position.
• Power off → move to down position
• Push the brakes → if in up position → move to high up position (air-brake position)

step 4 → speed activated (Gps module?) :

• Speed over 70km/h → Up position
• Speed under 70km/h → Down position
• push the button switch (over-riding speed trigger) → move to up position
• push the (same) button switch (over-riding speed trigger) → move to down position
• Power on (car contact) → move to up position then to down position.
• Power off → move to down position
• Push the brakes → if in up position → move to high up position (air-brake position)

I have pretty good wiring/basic electronics knowledge working on car, as well in IT Building computers... But Zero knowledge in coding and that is the part I'm a bit afraid of...

Do you think it is a good starting project?

I heard AI works pretty good writing code now, is that true?

Thanks for your advices.

I've recently got some SG90 servo motors. I only had a vague idea of how to use them, but I still wanted to explore this whole new area of mechanical systems and controlling devices.

After a bit of research, I've learnt that powering them from the VIN pin of my Atmega board is a really bad idea, as they will try to draw too much current. I have an Atmega board (I believe it's a clone of an Arduino Nano) powered by a USB charger, so it provides 5V on the VIN pin.

Will it work if:

1. I power the Atmega board from a 12V DC power adaptor and connect that to the VIN pin (it looks like the board can handle up to 15V)?
2. I use this consverter to step the 12V down to 5V and power the servos from there?

Another question regarding the SG90: has anyone seen a version that comes with a differently sized servo arm? I've printed a few 3D models and it looks like the single-sided arm I received with the servo is larger and doesn't fit those models.

Any tips on where to buy a bunch of mounts for 9g servos in the UK? Or with cheapish shipping to UK. Can’t seem to find much online. I just want a simple cracked to keep it in place.

https://preview.redd.it/ov7b4zo0418e1.png?width=855&format=png&auto=webp&s=863ae0af41e08f94dbd368765c2f4df0c4034599

the module has a 8x8 LED matrix piloted by the MAX7219, i need it to make the whole matrix blink for test purposes.

When using the pin 7 as Chip Select (CS) everything works but when i change it to 12 the matrix won't do anything. Changinge the number on line 3 does not work and not even directly inserting 12 on pinMode and digitalWrite functions.

there is no external circuitry, only this module

//Clock=13,chip select=7, Data input=11
#include <SPI.h>
#define CS 7                 //I wish to change this to 12 and have it work
#define DECODE_MODE 9
#define INTENSITY 10
#define SCAN_LIMIT 11
#define SHUTDOWN 12
#define DISPLAY_TEST 16



void setup() {
  pinMode(CS,OUTPUT);
  SPI.setBitOrder(MSBFIRST); 
  SPI.begin(); 

  SendData(DISPLAY_TEST, 0x01); 
  delay(1000);
  SendData(DISPLAY_TEST, 0x00);
  SendData(DECODE_MODE, 0x00);
  SendData(INTENSITY, 0xff);
  SendData(SCAN_LIMIT, 0x0f);
  SendData(SHUTDOWN, 0x01);



}


void loop() {
  SendData(1,B11111111);
  SendData(2,B11111111);
  SendData(3,B11111111);
  SendData(4,B11111111);
  SendData(5,B11111111);
  SendData(6,B11111111);
  SendData(7,B11111111);
  SendData(8,B11110111);
  delay(1000);
  SendData(1,B00000000);
  SendData(2,B00000000);
  SendData(3,B00000000);
  SendData(4,B00000000);
  SendData(5,B00000000);
  SendData(6,B00000000);
  SendData(7,B00000000);
  SendData(8,B00000000);
  delay(1000);
}
void SendData (uint8_t address, uint8_t value){
  digitalWrite(CS,LOW);
  SPI.transfer(address);
  SPI.transfer(value);
  digitalWrite(CS, HIGH);
}

I'm new to Arduino and electronics for the sake of our thesis. I cannot upload libraries into the cloud and thus my sketches cannot be verified. It shows this this whenever I upload.

Selected file is not a valid library: library does not contain a library.proprties file.

The file I am uploading is a zip file. Im basically lost at this point there is no guides in youtube or anything that could help me. Without this library, I don't know how to proceed and thus it is important I can upload this on the cloud.

For context, I am needing to upload a library for an ACS712 current sensor. I hope anyone could help me fine alternatives as my thesis deadline is fast approaching. Thanks!

Hi,

For a project I’m working on, I need to read two analog inputs simultaneously (or as close to simultaneously as possible) during a mechanical action that lasts between 2 to 10 seconds. I need to send this data to my PC for analysis using a Python script.

I don’t need real-time data transfer to the PC; I can store the readings in the microcontroller’s memory and send them in a single batch when the mechanical action is complete.

A 12-bit resolution is sufficient (although 16-bit will be nicer), and I’d prefer not to reduce it to 8-bit. I estimate that I need about 100–200 samples per second from each analog input, for a total of around 500 Hz across both inputs togheter.

My current setup includes a Raspberry Pi Pico and an ADS1015 chip. I’m reading the analog signals using the Adafruit library and sending the readings directly to the PC , via Serial.print.

The USB baud rate is set to 1M. Under these conditions, I’m getting about 30 samples per second from each analog channel (60 samples per second total), which is lower than my target rate.

I’d like to increase the sampling speed. Are there any modifications I can make to my existing setup to achieve a higher sampling rate? Or should I consider a different approach, such as using a dedicated DAQ device? At this point, I’d prefer not to use an oscilloscope due to the cost.

Edit: Could be that the Bottleneck is in the Python code ? How should i test it ?

Thank you.

I'm absolutely new to coding and Arduino and I made a simple car at a workshop my school organized. They uploaded the code for me at the workshop but there were some issues with wrong buttons triggering the wrong motion. I have the code and I'm trying to upload it again to try and fix the issues but this shows up when I do:

Sketch uses 1878 bytes (5%) of program storage space. Maximum is 32256 bytes.

Global variables use 188 bytes (9%) of dynamic memory, leaving 1860 bytes for local variables. Maximum is 2048 bytes.

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0xd6

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0xd6

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0xd6

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0xd6

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0xd6

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0xd6

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0xd6

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0xd6

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0xd6

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0xd6

Failed uploading: uploading error: exit status 1

This is the code:

char t;
const int m1= 2;
const int m2= 3;
const int m3= 4;
const int m4= 5;
const int enA= 9;
const int enB= 10;

void setup() {
  Serial.begin (9600);
  pinMode(m1, OUTPUT);  //left motors forward
  pinMode(m2, OUTPUT);  //left motors reverse
  pinMode(m3, OUTPUT);  //right motors forward
  pinMode(m4, OUTPUT);  //right motors reverse
  pinMode(enA, OUTPUT);
  pinMode(enB, OUTPUT);
    digitalWrite(m1, LOW);
    digitalWrite(m2, LOW);
    digitalWrite(m3, LOW);
    digitalWrite(m4, LOW);
    analogWrite(enA, 0);
    analogWrite(enB, 0);
}


void forward(){
    digitalWrite(m1, HIGH);
    digitalWrite(m2, LOW);
    digitalWrite(m3, HIGH);
    digitalWrite(m4, LOW);
    analogWrite(enA, 200);
    analogWrite(enB, 200);
}

void backward(){
    digitalWrite(m1, LOW);
    digitalWrite(m2, HIGH);
    digitalWrite(m3, LOW);
    digitalWrite(m4, HIGH);
    analogWrite(enA, 200);
    analogWrite(enB, 200);
}

void left(){
    digitalWrite(m1, HIGH);
    digitalWrite(m2, LOW);
    digitalWrite(m3, LOW);
    digitalWrite(m4, HIGH);
    analogWrite(enA, 200);
    analogWrite(enB, 200);
}

void right(){
    digitalWrite(m1, LOW);
    digitalWrite(m2, HIGH);
    digitalWrite(m3, HIGH);
    digitalWrite(m4, LOW);
    analogWrite(enA, 200);
    analogWrite(enB, 200);
}

void stopp(){
    digitalWrite(m1, LOW);
    digitalWrite(m2, LOW);
    digitalWrite(m3, LOW);
    digitalWrite(m4, LOW);
    analogWrite(enA, 0);
    analogWrite(enB, 0);
}



void loop() {

    if (Serial.available()) {
    t = Serial.read();
    Serial.println(t);
  }

 if (t== 'F'){
void forward();
}

 if (t== 'B'){    
void backward();
}

 if (t== 'R'){
void right();
}

 if (t== 'L'){
void left();
}

 if (t== 'S'){
void stopp();
}
}


char t;
const int m1= 2;
const int m2= 3;
const int m3= 4;
const int m4= 5;
const int enA= 9;
const int enB= 10;


void setup() {
  Serial.begin (9600);
  pinMode(m1, OUTPUT);  //left motors forward
  pinMode(m2, OUTPUT);  //left motors reverse
  pinMode(m3, OUTPUT);  //right motors forward
  pinMode(m4, OUTPUT);  //right motors reverse
  pinMode(enA, OUTPUT);
  pinMode(enB, OUTPUT);
    digitalWrite(m1, LOW);
    digitalWrite(m2, LOW);
    digitalWrite(m3, LOW);
    digitalWrite(m4, LOW);
    analogWrite(enA, 0);
    analogWrite(enB, 0);
}



void forward(){
    digitalWrite(m1, HIGH);
    digitalWrite(m2, LOW);
    digitalWrite(m3, HIGH);
    digitalWrite(m4, LOW);
    analogWrite(enA, 200);
    analogWrite(enB, 200);
}


void backward(){
    digitalWrite(m1, LOW);
    digitalWrite(m2, HIGH);
    digitalWrite(m3, LOW);
    digitalWrite(m4, HIGH);
    analogWrite(enA, 200);
    analogWrite(enB, 200);
}


void left(){
    digitalWrite(m1, HIGH);
    digitalWrite(m2, LOW);
    digitalWrite(m3, LOW);
    digitalWrite(m4, HIGH);
    analogWrite(enA, 200);
    analogWrite(enB, 200);
}


void right(){
    digitalWrite(m1, LOW);
    digitalWrite(m2, HIGH);
    digitalWrite(m3, HIGH);
    digitalWrite(m4, LOW);
    analogWrite(enA, 200);
    analogWrite(enB, 200);
}


void stopp(){
    digitalWrite(m1, LOW);
    digitalWrite(m2, LOW);
    digitalWrite(m3, LOW);
    digitalWrite(m4, LOW);
    analogWrite(enA, 0);
    analogWrite(enB, 0);
}




void loop() {


    if (Serial.available()) {
    t = Serial.read();
    Serial.println(t);
  }


 if (t== 'F'){
void forward();
}


 if (t== 'B'){    
void backward();
}


 if (t== 'R'){
void right();
}


 if (t== 'L'){
void left();
}


 if (t== 'S'){
void stopp();
}
}

I'm using an Arduino UNO on version 2.3.4 of the IDE. I have tried using two different cables, on both the USB ports on my laptop.

Please help.

Hello, I recently bought this module (link) and I thought I could use it to power arduino with 3 18650 batteries and recharge them with solar power. The module itself works, batteries recharge correctly and all but if I attach an arduino board to it (through the 5V terminal not usb-c) the board powers up and runs for a minute and then shuts down. Is it because arduino isnt't consuming enough current, I am using the wrong terminal or is the module broken? Thanks for any help

Hi everyone, i'm building a PID controlled arduino car with TT motors and want to measure the input voltage into the motor. To do so, I connected a wire from the output screw terminal of the motor driver to a potential divider, before connecting the scaled down output into an analog pin. However, despite measuring the exact values of resistance of the resistor and providing a regulated 4.5V external AREF with a buck converter (all measured with multimeter), i can't obtain accurate values for input into the analog pin. I've tried a different pin as well with the same issue and the pin worked fine previously for an encoder input

When using the external AREF, i keep getting a constant 1023 from analogRead, despite the measured voltage at the pin being 3.6V, much lower than the 4.5V. |
When using the internal 5V reference voltage, measured to be 4.88V, the values are constantly off by about 1 Volt, with the actual voltage across motor being 5.4V and the measured and upscaled voltage being 6.4V. I suspect my resistors are 5% and not 1% resistors, but would that matter? As i measured the actual values for each resistor.

What are some possible causes for this? I don't think it is a wiring issue as when measuring the voltage directly at the analog pin and doing the potential divider calculations manually, I end up with a pretty accurate value. Or is this inaccuracy typical of measuring voltage this way and do i have any alternatives to measure the input voltage into the motor?

Would greatly appreciate any help and guidance. Cheers!

#include <Arduino.h>
#include <SoftPWM.h>
#include <PID_v1.h>
float runPeriod = 30; //seconds
// potential divider left: 5.11, A0, then 9.99k , right: 5.08k, A1, then 10.20k 
const int encoder0pinA = 1;//A pin -> the digital pin 1
const int encoder0pinB = 2;//B pin -> the digital pin 2
const int encoder1pinA = 3;//A pin -> the digital pin 3
const int encoder1pinB = 4;//B pin -> the digital pin 4

const int inAB = 5; //Motor A input B
const int inAA = 6; //Motor A input A
const int inBB = 9; //Motor B input B
const int inBA = 10; //Motor B input A


void setup() {
 Serial.begin(9600);
 pinMode(inAB, OUTPUT); 
 pinMode(inAA, OUTPUT);
 pinMode(inBB, OUTPUT);
 pinMode(inBA, OUTPUT);
 analogReference(EXTERNAL);
 SoftPWMBegin();
}
double readleftVolts() {
    double leftrawVolts = analogRead(A0) * (4.5 / 1023.0);
    return leftrawVolts * ((9.99+5.11) / 9.99); 
}
double readrightVolts() {
    double rightrawVolts = analogRead(A1) * (4.5 / 1023.0);
    return rightrawVolts * ((10.22+5.07) / 10.22); 
}
void advance(int s) { // Motor Forward
  // Motor A: Forward
  SoftPWMSet(inAB, 0); // Motor A Input B Low
  SoftPWMSet(inAA, s); // Motor A Input A High
  
  // Motor B: Forward
  SoftPWMSet(inBB, s); // Motor B Input B Low
  SoftPWMSet(inBA, 0); // Motor B Input A High
}

void loop() {
    advance(150);
    Serial.println(readrightVolts());

    if (millis() > (runPeriod * 1000)) {
    stop(); 
    Serial.println("stopped");
        while (true) {
        
        }
    }
    delay(100);
}

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https://preview.redd.it/00g1b4e9xv7e1.jpg?width=1280&format=pjpg&auto=webp&s=c7be33fc00a98eced0a6944af132363dca2a603b

https://preview.redd.it/zjwmfd6cxv7e1.jpg?width=1280&format=pjpg&auto=webp&s=c8db421b87593a3ffd1709c46f87c3d9c44b3fa8

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