Questions tagged [arduino-ide]
This is for questions about the official IDE. The open-source IDE makes it easy to write code and upload it to any Arduino board. It runs on Windows, macOS and Linux.
1,581 questions
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Connect Arduino + ESP8266 to Azure IoT Hub Device via X509 certificate
I would like to connect ESP8266 with Azure IoT Hub Device via X509 certificate. Currently, I can connect using the symmetric key connection to my device, but I have devices that I want to authenticate ...
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How do you remove a number of characters from a parsed string?
Using this code - advertisedDevice.getServiceDataUUID().toString().c_str()); returns the following string -
0000feaa-0000-1000-8000-00805f9b34fb
How can I adjust the code to do that it omits the first ...
- 101
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Define a custom baudrate in Serial Monitor
Is there a way to define a different baud rate from the ones we are shown in the dropdown menu of the Serial Monitor? I want to define a custom value.
- 209
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Will the atmega8-U2 work with Arduino IDE
I use a homemade board that hosts a PIC16F1829 and an ATmega328P on the same board. We use the ATmega328P with the Arduino IDE and the PIC with the MPLABX IDE for about 100 EE students a semester at ...
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2
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Where should unit tests go in the Arduino IDE
I have an Arduino project where the file structure looks like this
myProject/
myProject.ino
ImportantClass1.hpp
ImportantClass1.cpp
ImportantClass2.hpp
ImportantClass2.cpp
...
- 71
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ESP8266 - Can't upload or use Serial Monitor - Ubuntu 22.04 LTS
When trying to use the ESP8266 Node MCU or Multiple Feather Huzzah's I get the following error. I can program Arduino Uno & Mega without issue.
warning: espcomm_sync failed
error: espcomm_open ...
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Requires accurate RGB color values by the tcs3200 RGB color sensore
I used the TCS3200 sensor to read the RGB color values.First, I calibrated the sensor with white and black colors.The sensor detects red, blue, and green correctly, but does not give an accurate value....
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How to do multiple serial.read()
first of all im new here and im really sorry if there's some mistakes when im making this question. So im trying to make a program to calculate using serial read, and im going to input a lot of values....
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2k
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Nema 17 stepper motor speed problem
This code is quoted from here. May I know how to increase the speed of the NEMA 17 stepper motor further? I tried to increase the step speed to 2000rpm but it does not even work. It only works for ...
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ESP32: why does malloc can only alloc 126888 bytes with 402540 bytes heap?
I need a buffer of the size 153600 bytes in my ESP32 project, but I could not create a static buffer in code nor can I malloc the buffer.
The ESP32 itself reports:
ESP.getHeapSize() // = 402540
...
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Can no longer select a port in Arduino IDE on Linux?
I am trying to upload to my Elegoo Mega 2560. I previously had it set up properly with the board installed and selected and the port automatically detected.
Now when I go to Tools and hover my mouse ...
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1
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Can I flash hoodloader2 or HEX files on Arduino Simulators?
I want to make a HID Keyboard out of Arduino UNO, in UNO board the script runs perfectly fine, but the UNO board requires me to flash it every-time I want to put in a new script in it, so can I do the ...
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Can you write c code in arduino ide?
So i know that the native arduino language is written in c/c++, but does that mean that i can write pure c code in the arduino ide, or that i have to use the arduino specified language? I’m new to ...
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VSCode vs. Arduino IDE - same program, different behavior
I've got this simple program for testing DS18B20 temperature sensors.
#include "OneWire.h"
#include "DallasTemperature.h"
#define ONE_WIRE_BUS D3
// Setup a oneWire instance to ...
- 261
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Is there accurate connection procedure for connection between an esp32 and ultrasonic sensor(HC-SR04)? [closed]
I am currently working on a project which integrates esp32 and HC-SR04 and send the data from HC-SR04 to my own domain. The connection diagram is this
And the code which I use is this,
const int ...
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2
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uint8_t issues when linking libraries outside of INO file
I've been trying to start my project out split into multiple files, knowing it will grow. I was templating it off of how I've done C++ files in the past: classes in an individual .h/.cpp pair and ...
2
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2
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1k
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Read & Write to EEPROM
I need to implement EEPROM Read & Write functionality to my project.
I've been learning how to use the EEPROM on the last few days, however I'm struggling to Read & Write Strings to EEPROM.
...
user70243
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1
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445
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passing variable to function
I have the following code to turn on or off led. I would like to modify the function to pass the pin as well. what should X be substituted with?
#define BIN_LED 2
#define PIN_LED 3
void led(uint8_t x,...
-2
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1
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198
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How can I get an external program to change values inside the Arduino C++ code? [closed]
How can I get some constantly changing values from a separate C++ program entered and uploaded into the Arduino?
I notice when I upload code to the Arduino in the IDE it takes about a second to start ...
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891
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avrdude: ser_open(): can't set com-state for "\\.\COM4" [duplicate]
My Arduino code is not getting uploaded. It gives me "avrdude: ser_open(): can't set com-state for "\.\COM4" error. It worked literally 5 mins ago. now it doesn't work. I updated the ...
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1
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Why i am not getting the decimal number as output? The code is explained with the help of comments
// Defined three array arr0,arr1,arr2
int arr0[] = {0, 0, 0, 0, 0, 0, 0, 0};
int arr1[] = {0, 0, 0, 0, 0, 0, 0, 0};
int arr2[] = {0, 0, 0, 0, 0, 0, 0, 0};
//cord function takes binary number array as ...
0
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1
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how to put whitespace in long Serial println() input [closed]
I have this long, Serial.println() that is in quotes, on multiple lines.
Arduino IDE warns: "Missing terminating character".
I am certain there is a way to break the lines up, while having ...
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Arduino IDE Java error
I'm running IDE version 1.8.16 under Windows 10.
Frequently I get the error message. The situation is solved only when exiting the IDE. Afterwards the compilation may be finished with or without ...
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1
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195
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String operations printing random character on Serial Monitor
I want to extract the file name MyFile.txt out of a path which is stored in a string "C:\\MyDirectory\\MyFile.txt";
I found a simple c code which does the job.
string filename = "C:\\...
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0
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817
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Nodemcu Lolin v3 Timeout error
I am getting the Arduino console error "the selected serial port serial.serialutil.SerialTimeoutException: Write timeout
does not exist or your board is not connected". I recently upgraded ...
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