Category "esp32"

CMAKE Esp32 using azure iot samples - what to check in into my repository

I am really new to iot/embedded world (I come from the b2b java world). Currently I am starting setting up an ESP32 based project. So far I tried esp-idf Hello

facing an issue while executing ethernet example given in espressif IDF release/v4.2

problem: I have used espressif esp32s ethernet example trying to build basic and build is successfuly generated now while executing it is throwing error as giv

After wiping out EEPROM with NULL, it later shows NBSP(255) instead of NULL(0)

So, I am a curious person. And been tinkling with NVS in ESP32 WROOM 32D for storage. What I did was simply write a formatting code to wipeout a few addresses i

Setting sdkconfig using platform.io for the ESP32

I was wondering if anybody managed to set the SDKConfig.h file for the ESP32 when using platform.io to upload code, and if so how it is done. Thanks in advance

How to generate a symmetric key in C or C++ the same way this script does?

I am implementing Azure DPS (device provisioning service) for my ESP32-based firmware. The bash script I use so far is as follows (where KEY is the primary key

Unable to compile ESP-IDF example project

I'm trying to compile my first ESP32 example project. I set up Visual Studio Code with all the latest tools. (Python, toolschain, etc). I'm not sure what exactl

How to add liquid pump and extrenal power supply part to fritzing?

I have a question regarding the power supply and the liquid pump. I have a project about automatic pump with ESP32. So, I want to try my solution in fritzing be

ESP32 - SoftwareSerial Library

I have a ESP32 and I need to work with more serial ports, but I can't be using the Software Serial Library into ESP32, because the Arduino IDE don't recognize t

ESP32-CAM stream in OpenCV Python

I am using AI Thinker ESP32-CAM with stream url http://192.168.8.100:81/stream. I have tried this and other techniques but nothing worked for me import numpy a

Not able to plot voltages graph (v1 vs v2) in a website using esp32 and arduino

I have started learning to build some good websites. In one of my projects, I wanted to display two voltages (named "POTvalue1" & "POTvalue2") on a website.

Deploy react on an esp32 with 32 character file name limit

I would like to deploy a react application on a web server on an esp32 micro controller, to control an api on that same micro controller. The web server is work

Control Relay by MQTT Publish Subcribe

sorry for my bad english, but i'll try my best i have a code like this void mqttCallback(char *topic, byte *payload, unsigned int length) { Serial.print("Mess

How to post image using Arduino HTTPClient

I am using arduino HTTPClient to do the post request in ESP32. Can anyone help me with the part where I will be able to post an image file along with some data.

ESP32 AWS IoT transportStatus=-1

I'm following the espressif docs for connecting a ESP32 to AWS IoT shadow. I'm using the example github.com/espressif/esp-aws-iot for shadow mqtt synchronisatio

ESP32 board_POST_Error_[E][WiFiClient.cpp:258] connect(): socket error on fd 56, errno: 113, "Software caused connection abort"

I need to send HTTP POST request using ESP32 module, to my REST API server which coded using python. But when running following code, an error comes. Running on

MCP3464 Micropython

I want to read the result of a conversion of the MCP 3464 with a ESP32 I can read registers and write registers. But when I want to read the result of conversio

ESP32-NODEMCU V1.1

I have the following error message occuring on the arduino IDE, Arduino: 1.8.15 (Windows 10), Board: "NodeMCU-32S, 40MHz, 921600, None" In file included fr

convert uint8_t array to string in c++

This can be marked solved. The problem was the print macro. ESP_LOGx can't put out c++ Strings. I'm trying to convert an uin8_t array to a string in c++. The a

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