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Unanswered Questions

455 questions with no upvoted or accepted answers
5 votes
0 answers
903 views

Internet in ESP32 is not working with IPv6

I am using ESP-WROOM-32D in STA mode with Arduino IDE(2.0.5) ESP32 board(2.0.9). I am trying to do http post request with ESP32. Router that provides internet supports only IPv6. Here I am getting ...
4 votes
0 answers
140 views

Arduino IDE v 2.2.1 log file not limited in size (on Ubuntu 23.04)

I was learning/building with a new Arduino Nano ESP32 yesterday and left the Arduino IDE running overnight on Ubuntu 23.04 and it used all the space on my hard drive to write log files which broke my ...
4 votes
0 answers
2k views

Is there a way to use ESP8266 in promiscuous(monitor) mode and see the the wifi packets?

I didn't find much documentation about ESP promiscuous mode (just from the espressif sdk although I'm using ArduinoIDE https://docs.espressif.com/projects/esp8266-rtos-sdk/en/latest/api-reference/wifi/...
3 votes
0 answers
1k views

How to use C++20 in Arduino IDE?

I'm writing a program for esp32 using the Arduino IDE that needs to count the number of '1' bits in a byte. I found a post elsewhere that says there's a nice function in the standard library to do it: ...
3 votes
0 answers
782 views

How can I connect my ESP32-WROOM-32 to Arduino IDE?

I'm using this 'ESP32-WROOM-32' but I can't find the correct board in the IDE. I see the esp32-wroom-DA (edit, i took it to the store where i bought it and it worked fine with theirs. they were on ...
3 votes
0 answers
608 views

PCA9685 - Hardware problem with diode?

I'm working on a project, where I need to run several high-torque servos. For that I bought come of these PCA9685 boards. I hooked everything up with my arduino and connected an external 5V - max 3A ...
3 votes
0 answers
5k views

String.format("%i",i) equivalent

How do I format an arduino String when I do not want to print it? I know that one can use printf() or other methods to print a formated string and unfortunately that's all I find with google. But that'...
3 votes
0 answers
957 views

Using CLion as Arduino IDE — Cannot find Libraries

I'm having a problem using CLion as Arduino IDE when integrating 3rd-party libraries: Here is the CMakeList.txt cmake_minimum_required(VERSION 2.8.4) set(CMAKE_TOOLCHAIN_FILE ${CMAKE_SOURCE_DIR}/...
3 votes
0 answers
328 views

Arduino IDE programs Leonardo but cannot open serial terminal

I'm using Arduino: 1.6.7 (Mac OS X 10.11.3), Board: "Arduino Leonardo". When I try to program my code, it works without problems. When I want to open the built-in Serial Monitor or Serial Plotter, ...
3 votes
0 answers
173 views

Seeeduino Motor Shield Power Supply

I'm looking to drive two DC motors (on a toy RC car) using a Seeeduino and Seeed Motor Shield V2, but can't manage to get the power scheme right. Right now, a 9V battery connected to the shield powers ...
3 votes
0 answers
331 views

Help to understand multiple PWM working together

I'm very new to arduino related stuff so this question might be really easy to answer. I don't understand how multiple PWM outputs are supposed to work. Look at the pic. In the first(1) case we are ...
3 votes
1 answer
5k views

Running two stepper motors with two rotary encoders

I'm really bad with this coding part of using two rotary encoders to control two stepper motors [using 28BYJ-48 stepper motor with the ULN2003 board]. This code works fine using one rotary encoder for ...
3 votes
1 answer
435 views

Multiple servos noise

I'm building an application that uses 20 servo motors, and i control then with an Arduino Mega. The servos are having some instability, to the point where they make small random swings. Im powering ...
2 votes
0 answers
52 views

I am trying to control 4 servos with a joystick, but after a few seconds, they start spinning and don't stop until the power source is cut

Here's my code. I don't know if the issue is the power source though. I only have access to my computer for a power source. #include <Servo.h> Servo servo1; Servo servo2; Servo servo3; Servo ...
2 votes
0 answers
127 views

What wrong with my Arduino code?

I have a rotary encoder (ppr = 600) and I want to write code to achieve the implementation to read current angle and direction. Here is my code. I think it is correct but it donot have any output on ...

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