Thank you MicroController for your reply. I will have a look the xTimer queue and command.
The circuit has a rc filter and a schmitter trigger for debouncing and the firmware checks if two consecutive interrupts is within 20ms.

ESP_Sprite wrote: ↑

Sun Jul 09, 2023 1:33 am

Close is a posix function; if it returns -1, there has been an error. I think you can do this to get the specifics:

Code: Select all

#include <stdio.h>

[...]

if (close(..)==-1) {
	perror("close");
}

Thank you. I will try your code.

I'll try thank you for your advice

We have several robots have wonky limit switches which always pull high. So I put some code that when the robot move away from the end stop(limit switch from triggered state to release), I start a timer and wait for the release of the switch(interrupt). If robot detects the release(interrupt), it st...

ctrl + e + b then ctrl + e + f
or
you can write a custom task using compound tasks
https://code.visualstudio.com/docs/edi ... ound-tasks

Is there a way to display how long the compilation took?
One way I could thinks about is use idf.preBuildTask and idf.postBuildTask to record start and end time. Is there better way? Or idf.py already have build-in functions I didn't found
thanks.

I saw in programming guide about esp_wifi_connect(): 3. The scanning triggered by esp_wifi_scan_start() will not be effective until connection between ESP32 and the AP is established. If ESP32 is scanning and connecting at the same time, ESP32 will abort scanning and return a warning message and err...

I am new to socket programming. what is the return value of sockect close() function. I could not find in https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-guides/lwip.html?highlight=lwip. I always get -1 as return of close(). I have SO_REUSEADDR enabled. Is it safe to reconnect use th...

seems new macos update deleted python 2.7 so the extension_env can not find it.
I deleted files in .espressif/python_env and then the idf extension could be reconfiged

I have same problem. I am on Mac and the extension version is 1.4.0
log is attached