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Unanswered Questions

589 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
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
9k views

How do I interpret the esp8266 "boot mode" message?

Everytime the chips resets, we get the reason and the next boot mode. ets Jan 8 2013,rst cause:XXX, boot mode:(YYY,ZZZ) For XXX we can check the meaning here. For YYY and ZZZ I am not sure but I ...
4 votes
2 answers
732 views

Bluetooth communication not working with DC power but works with USB power?

I am running an HM-10 Bluetooth Low Energy (BLE) module to transmit serial data (using SoftwareSerial) from an analog sensor onboard my Arduino Uno to a serial terminal app on my Android phone. When I ...
4 votes
0 answers
206 views

How to filter out "jumpy" readings sent using Bluetooth

I'm using App Inventor to continuously send orientation values (as strings) to my Arduino, which are read using Serial.parseInt(). Using simple IF statements (if value > threshold), I'm trying to turn ...
4 votes
2 answers
137 views

Turn ESP8266 into an Arduino IDE-like "sketch uploader" (over hardware serial)

I have an ESP8266 module which has downloaded a hex file for an Arduino Mega2560. This hex file (call it mega2560.hex) is sitting in the ESP's SPIFFS file system. What I want to do is basically ...
3 votes
1 answer
165 views

Error trying to play audio through an ESP8266 using the 'ESP8266Audio' library

I am attempting to use an esp8266 to play an .mp3 audio file through a connected speaker using the 'ESP8266Audio' library. I have tested that the hardware setup is correct (e.g. I have been able to ...
3 votes
0 answers
74 views

Why RTU bridge timeout even though answer is received?

I'm testing the following code as a bridge between https://sourceforge.net/projects/qmodmaster/ and https://pypi.org/project/pyModSlave/. As hardware, I'm using a NodeMCU 1.0 and a USB/TTL converter. ...
3 votes
0 answers
32 views

is it possible for a client esp8266 to control the esp8266 that set as an access point?

Im creating a project where i need to set one of my esp as a hotspot or access point but i would like to put a function where i could control the connected esp8266 client using the esp8266 that set as ...
3 votes
0 answers
208 views

ESP8266 01 doesn't react after baud rate change

Hello guys I have my ESP8266 connected to my Arduino. Then I typed in AT in the serial monitor. It confirmed this command with OK. After that I typed in AT+UART=9600, 8, 1, 0, 0 which gave me the ...
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
3k views

Getting a Wemos D1 Mini to work with a M1 Mac

The Wemos D1 mini won't show up on the new M1 Mac. I know it's related to the drivers but I just can't find a viable solution to the problem. Has anyone solved this?
3 votes
0 answers
703 views

OTA updating the ESP32 from a separate server

I have an ESP32 project which I'd like to be able to update OTA. The trouble is that it is in deep sleep for approximately 15 minutes before waking up, connecting to WiFi sending an MQTT packet then ...
3 votes
0 answers
4k views

Converting between NEC and HEX values from IR receiver

I jacked one of the IR receivers from my LED strip and hooked it up to my ESP8266 NodeMCU (running Arduino code). I found a great library called IRremoteESP8266. With this library, I can basically ...

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