Category "esp32"

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