I am using ESP32 DEVKIT link and Adafruit VS1053 Codec + MicroSD Breakout - MP3/WAV/MIDI/OGG Play + Record - v4 link to record and then play the sound. I am using Arduino IDE for coding. I am faci...

I keep getting error as I upload my code to my AI thinker esp 32 cam. I connect it using microusb and it always has this error: A fatal error occurred: Failed to connect to ESP32: No serial data re...

My Arduino Uno is plugged in with mac USB port. But Arduino IDE is not showing any port. (macOS- Catalina)

I was trying to build a simple IoT product using a nodemcu, an LED, and the blynk app. This is the most basic thing you can do with a nodemcu. However, when I was uploading the example from the Bly...

I am trying to add a cpp file to arduino project that has the following setup... project --folder --foo.h --foo.cpp --project.ino I have a #include "folder/foo.h at the top of project.ino. Ho...

I've this code: Serial.print("x:"); Serial.print(x); Serial.print(" y: "); Serial.println(y); and works fine. There's an example of the output: x:41 y: 31 but I wonder if there's a way to...

In the Arduino GUI on windows, if I click on Sketch --> Import Library, at the bottom of the menu there is a section called "Contributed". Unfortunately, I had misclicked and added a library I did...

I use the 1.6.7 Arduino IDE and I’ve installed the "Arduino SAM Boards (32-bits ARM Cortex-M3)" item for my DUE board, and it works fine. However, I would like to tune some build parameters in my...

I am trying to use NOD MCU ESP8266WiFi with Arduino IDE When I run this code: #include <ESP8266WiFi.h> #include <BlynkSimpleEsp8266.h> char auth[] = "YourAuthToken"; char ssid...

I can see FTDI module in system report But in arduino it doesn't show up I read that iOS comes with USBSerial.kext which can handle this but I don't see it working for me. I have tried installing...

My Arduino IDE (ver 1.8.12 on Win10) crashes when I launch it. Running the arduino_debug.exe I get this error message. C:\Program Files (x86)\Arduino>arduino_debug.exe Set log4j store directory...

I'm new to arduino and I have stumbled upon a problem. I want to send data via my esp8266 to my php page. But I don't know how to join my data with this GET request. Here is my code: String card ...

I do have a small Arduino programming that simply stops after first loop. I might overlook something...but I'm simply clueless about what is happening. Here is the code int led = 13; //int led = ...

Is it possible at all to use map with ESP8266 for Arduino package? Here is my code: #include <map> typedef std::map<int, int> Items; void setup() { Items items; items[2]=5; //ite...

I am writing a small code to enable a buzzer when a sensor reading is above certain threshold. To enable the buzzer for one second, I gave a delay of 1000ms by calling this function : delay(1000). ...

I'm working on creating a geofence using GPS & Arduino. I want to implement the Haversine Formula to find the distance between two points, in order to compute it with the radius. The problem is...

The Arduino docs explain yield() at https://www.arduino.cc/en/Reference/Scheduler with regards to the Due. Apparently it is part of the Scheduler library: #include <Scheduler.h> However, I...

I'm currently working on a project using Arduino 1.0.6 IDE and it does not seem to accept C++11 std::array. Is it possible to change the compiler flag to make this work?

I have made a simple Node.js local server to receive POST requests from ESP32 and put it in a database. The server is working fine as I tested it using postman. The server is listening to port 127....

I have searched for solution for this issue for quite a long time with no luck. I would like NodeMCU to look for an open wifi network and connect to it. As long as the connection is available use ...

I am making a library for a specific board for the Arduino IDE. The library works great and now I'm taking a step back to add OO. The Library is a mix of .c and .cpp files. I know in order to add c...

My Arduino Uno was all set up and was working fine. Project: Arduino controls a 9v motor depending on the command given. As the Arduino only provides 5v, I added a 9v battery to it through a trans...

I installed this SHA library: https://github.com/Cathedrow/Cryptosuite. I want to implement HMAC256 using Arduino IDE 1.6.7 installed on Win. 10 and the controller is ATMEGA328. I copied the exam...

Blue led is blinking after powering up the module, the red one stays on, I can even connect to it via wifi. But I cannot program it. I tried Arduino IDE, different firmware flashers (Like NodeMCU, ...

The code below gives the error: sketch_jul05a:2: error: variable or field 'func' declared void So my question is: how can I pass a pointer to a struct as a function parameter? Code: typedef s...