Skip to main content

Unanswered Questions

621 questions with no upvoted or accepted answers
5 votes
0 answers
903 views

Internet in ESP32 is not working with IPv6

I am using ESP-WROOM-32D in STA mode with Arduino IDE(2.0.5) ESP32 board(2.0.9). I am trying to do http post request with ESP32. Router that provides internet supports only IPv6. Here I am getting ...
4 votes
0 answers
140 views

Arduino IDE v 2.2.1 log file not limited in size (on Ubuntu 23.04)

I was learning/building with a new Arduino Nano ESP32 yesterday and left the Arduino IDE running overnight on Ubuntu 23.04 and it used all the space on my hard drive to write log files which broke my ...
4 votes
0 answers
2k views

Is there a way to use ESP8266 in promiscuous(monitor) mode and see the the wifi packets?

I didn't find much documentation about ESP promiscuous mode (just from the espressif sdk although I'm using ArduinoIDE https://docs.espressif.com/projects/esp8266-rtos-sdk/en/latest/api-reference/wifi/...
4 votes
0 answers
76 views

Can I use regular pins (Example: D2, A3, etc...) as serial (RX, TX)?

Python/Arduino Beginner here... I have a DFplayer I am trying to hook to my Arduino and I want to hook it up through the regular pins instead of the RX and TX pins, but I've not been able to find ...
4 votes
0 answers
343 views

Is Arduino WiFi101 library fully compatible with Arduino MKR1000 with WiFi HW?

Will all the classes in this library work with the MKR1000 with wifi hardware? The guide mentions "wifi shield". So, does the library work exactly the same with the Arduino MKR100 (with the onboard ...
3 votes
0 answers
1k views

How to use C++20 in Arduino IDE?

I'm writing a program for esp32 using the Arduino IDE that needs to count the number of '1' bits in a byte. I found a post elsewhere that says there's a nice function in the standard library to do it: ...
3 votes
0 answers
782 views

How can I connect my ESP32-WROOM-32 to Arduino IDE?

I'm using this 'ESP32-WROOM-32' but I can't find the correct board in the IDE. I see the esp32-wroom-DA (edit, i took it to the store where i bought it and it worked fine with theirs. they were on ...
3 votes
0 answers
78 views

nano 33 BLE problems with reading RC signal

I'm using an Arduino Nano 33 BLE and a L293D motor driver to control a three-wheeled RC robot. The sketch I'm using worked fine with my Uno Rev3, but I've moved to the Nano for size/weight reasons, ...
3 votes
0 answers
2k views

How to correctly synchronize time with NTP server?

I want to synchronize time with NTP server once in some time. I am using DOIT ESP32 DEVKIT V1, I tried with getLocalTime() function but it returned true even without wifi, but as I know without wifi ...
3 votes
0 answers
105 views

My port is grayed out?

Hello I have a question on why my port is grayed out when I go to upload? I’ve watched so many YouTube videos on what’s the problem and have been trying to do everything but just nothing seems to work!...
3 votes
0 answers
1k views

ESP8266 Webserver does not respond

I am trying to reach the webserver running in my Wemos D1 Mini compatible board. I am trying one esp8266 example using Arduino examples "WifiManualServer" code below. I have replaced the SSI ...
3 votes
0 answers
3k views

Using or creating Wi-Fi Direct (P2P) connection on ESP8266

I want to make a Wi-Fi Direct connection with an android device using my ESP8266. According to ESP8266WiFi Documentation and ESP8266 datasheet, the board has a SoftAP mode which is I think what is ...
3 votes
0 answers
713 views

Getting atsam3x8e (Arduino Due) to work

I decided to make a pcb based on the atsam3x8e (microcontroller used in Arduino Due). For the design I copied most of the layout that I found on this site and looked at the official Arduino Due ...
3 votes
0 answers
5k views

String.format("%i",i) equivalent

How do I format an arduino String when I do not want to print it? I know that one can use printf() or other methods to print a formated string and unfortunately that's all I find with google. But that'...
3 votes
0 answers
601 views

Do software SPI read from a register using shiftin()

How to read from a register using software SPI, presumably shiftin()? It works using the builtin SPI library + hardware SPI. I seem to be able to write but not read using manual shiftin()/shiftout()...

15 30 50 per page
1
2 3 4 5
42