Skip to main content
3,372 questions
Newest Active Bountied Unanswered
Filter by
Sorted by
Tagged with
-1 votes
1 answer
488 views

PROBLEM I'm starting to play with Arduino IoT (ESP32). I read the GPIO configuration from a file on the SD card. I have a problem with external interrupts. I need to count the number of interrupts on ...
Piotr Płaczek's user avatar
  • 610
10 votes
2 answers
7k views

I am trying to develop an IoT device that should provide some functionality using a HTTP/REST API. I decided to use the ESP32 chip (on "ESP32 dev board"). Now I want to implement an easy-to-use WLAN ...
Christoph Bimminger's user avatar
  • 1,018
2 votes
1 answer
1k views

I have Micropython v1.9.2 on an HTIT-wb32 ESP32 board. I can run code, connect to my router, etc. I have not been able to access the built-in OLED display through I2C. The OLED pin layout for the ...
RKirk's user avatar
  • 57
1 vote
2 answers
596 views

I have a structure that I don't understand: typedef struct { uint8_t ssid[32]; /**< SSID of target AP*/ uint8_t password[64]; /**< password of target AP*/ wifi_scan_method_t scan_method; /...
user2018761's user avatar
  • 320
3 votes
2 answers
11k views

I was trying to setup my first ESP32 board with Arduino IDE. It works fine with built-in LED but does not work with pins. Here is my code: int LED_BUILTIN = 2; // works fine int LED_OUT = 25; // not ...
Zhengqian Kuang's user avatar
  • 1,119
7 votes
1 answer
13k views

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 127.0.0....
Natalie's user avatar
  • 133
-1 votes
1 answer
2k views

I'm trying to turn the LED (pin 2) ON when I push the boot button on an esp32 ! Here is my code ! Any idea why this don't work ? // constants won't change. They're used here to set pin numbers: const ...
evergoo's user avatar
  • 36
0 votes
0 answers
105 views

I am new to AWS and using this GitHub example to get email notification. Working on a Mac system, I have followed all the steps mentioned in the example and have everything setup as instructed. ...
Vicky Arora's user avatar
  • 501
2 votes
5 answers
12k views

I'm fairly new to Atom / PlatformIO and tried using it for development with Arduino as an alternative to Arduino IDE. ~The Specs~ base code used: Arduino ESP sample code "WifiBlueToothSwitch.ino" ...
Jason's user avatar
  • 31
1 vote
2 answers
536 views

I'll start by saying I'm not a C++/Arduino expert but I've played enough with this issue and googled enough where I can't figure it out. I have some Arduino code that is calling a sensor library file ...
ADY's user avatar
  • 113
0 votes
1 answer
646 views

I'm working with the ESP32. Currently I am migrating my library from an ESP8266 codebase. I'm currently doing the following: m_pubSubClient.setCallback( std::bind(&CL::callbackHandler, this, ...
jaecktec's user avatar
  • 472
-1 votes
1 answer
178 views

I am trying to build iotivity-constrained Zephyr port on Linux for ESP32 but getting the following errors, drivers/built-in.o: In function `esp32_uart_init': /home/toolchains/zephyr/drivers/serial/...
ibrahimdanish's user avatar
  • 163
0 votes
1 answer
966 views

I'm trying to send a struct over UART (from an ESP32) to be processed by Python by using this guide. // we send this to the host, to be processed by python script struct package { uint8_t modifier;...
Constantino's user avatar
  • 2,401
1 vote
3 answers
4k views

I am trying to connect to AWS IoT using a basic pubsub example in my ESP32 board with the help of the Arduino IDE. As a basic example it does connect to AWS IoT and publishes messages, but when I ...
Saikiran Kallatti's user avatar
  • 11
8 votes
1 answer
25k views

I have a web server on an ESP32 and a homepage on that server. I would like to update sensor values on the homepage every x seconds automatically (without user input). I cannot access the file system. ...
carousally's user avatar
  • 545
0 votes
0 answers
1k views

I'm desperately trying to write HTML code in a string since I can't use the filesystem on ESP32. (info: The server has no internet access (AP-mode) and I cannot load any files on ESP32. So I need a ...
carousally's user avatar
  • 545
3 votes
1 answer
7k views

I'm building a distributed application with the ESP32 (a great platform btw) where all participants should communicate over UDP in it's simplest form: sending messages via broadcast and listening to ...
Joschka Sondhof's user avatar
  • 78
0 votes
1 answer
1k views

I was looking at the docs for the dev-esp32 branch, no docs for net? But I see in the sources there's a code file that defines it? How likely is it my 8266 code will run on the latest ESP32 firmware? ...
Mark McGinty's user avatar
  • 756
2 votes
1 answer
1k views

I am trying to use the libssh library on the ESP32. When I compile the program, I get lots of errors. The first error is "fatal error: sys/select.h: No such file or directory." I commented it out ...
user3735849's user avatar
  • 933
-1 votes
1 answer
529 views

Does anyone have experience with porting the kaa-client SDK, which supports only ESP8266, to the newer ESP32? I have started with adapting the TCP APIs.
Andy R.'s user avatar
  • 7
0 votes
1 answer
723 views

I use Arduino IDE to develop code for ESP8266 and ESP32 (that in fact doesn't matter, it's only the toolchain that's different than classic Arduino for Atmel AVRs). I've had a code that worked, had ...
kfeksa1's user avatar
  • 21
0 votes
2 answers
8k views

I'm working on an embedded ESP32 design using one of the web server examples included in the esp-idf examples. I'm able to get the device into soft AP mode and display a simple web page. Now that I ...
user7009351's user avatar
  • 55

1
…
64 65 66 67
68