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1 vote
1 answer
89 views

I want to make a device that will process the car's telemetry data in real time. I am using ESP32 DevKitC v4 + TWAI + SN65HVD230. Connected and unsoldered everything correctly. I wrote the code on ...
1 vote
1 answer
90 views

I have that code: #include <stdio.h> #include <stdbool.h> #include <unistd.h> #include "esp_system.h" #include "esp_timer.h" #include "freertos/projdefs.h&...
1 vote
1 answer
68 views

I have two ESP32S, each connected to a CAN driver (MCP2515 + TJA1050). One is constantly sending data, the other is constantly only receiving it. I want whoever receives the data to work in Listen-...
0 votes
1 answer
59 views

I'm new to C++, cmake and esp-idf coding. My code project is as per Expressif's structure. I found aC++ BLE library https://github.com/h2zero/esp-nimble-cpp/tree/master that I'd liketo include. Their ...
maresa's user avatar
  • 651
8 votes
0 answers
217 views

I'm working in an ESPHome / embedded C++ environment, where exceptions are disabled, so std::vector::resize() won't throw std::bad_alloc on allocation failure. I need to resize a std::vector to match ...
0 votes
1 answer
42 views

my project uses micro_ros_espidf_component which works fine with standard int32 messages, but we would like to use a custom message. To be fair I am not an expert in either cmake build system or esp-...
-4 votes
1 answer
302 views

I have an ESP32-S3-N16R8 devkit board with two USB ports and I have a device that communicates via Serial USB. I want to read serial data from ESP32 board and process it. So the ESP32 board should act ...
1 vote
1 answer
167 views

I'm using an esp32 s3 (dual core) and I'd like to transmit DMX signals. The thing is that I have set the resolution as such that each tick is 4us (should be) but what I am getting is bits with way ...
0 votes
1 answer
239 views

I'm using the Waveshare ESP32-S3 7" LCD with GT911 touch and a built-in SPI SD card. The kit has fixed wiring for the display, touch, and SD, so I can't change the pin mapping. Here's the issue: ...
0 votes
1 answer
114 views

I am still quite new to microcontrollers and ESP-IDF so I am not familiar with the ins and outs of the framework. I wrote a fairly standard code for logging button press and release: #include <...
1 vote
0 answers
150 views

I've been suffering with this problem for a few days and can't figure out if it's a bug in toolchain or a CMakeList.txt file problem I have search web for answers but no joy. I have a component (...
Timbo's user avatar
  • 11
0 votes
0 answers
118 views

I am building a project that uses esp_lcd,and the TSL2591 component from the component library. To my knowledge these are both well maintained and commonly used in the idf, and should be able to ...
1 vote
0 answers
158 views

Win10, Latest VSCode. For quite some time, I've been on ESP-IDF 5.0.2 and VSCode version from 2023. 5.0.2 version was installed manually with an offline installer from Espressif. Used it to program ...
0 votes
2 answers
106 views

All CMakeLists.txt files are fine, the code compiles fine after a lot of tries, but keeps on failing to connect to zenoh public server "demo.zenoh.io" which resolves to 212.71.244.198. the ...
0 votes
0 answers
71 views

I implemented a ping function for ESP-IDF 5.4.2, but sometimes I get the error: "E (185212) ping_sock: send error=0". I also tried using a SemaphoreHandle_t, but the result was worse than ...

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