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I'm trying to read an SSID using preferences.h but getting a compile time error which doesn't seem to make sense to me. According to the Arduino docs, preferences.getString() can return either a char* ...
Fat Monk's user avatar
  • 2,275
0 votes
0 answers
333 views

I'm a beginner trying esp now for the first time. I have two Adafruit QT Py ESP32-C3 boards and I'm trying to make one board send a message, and the second board print on serial that it received the ...
WKGuy's user avatar
  • 129
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0 answers
81 views

I want to connect my xiao esp32 sense board to my phone using my own app to get camera picture. I tried bluetooth only, it work. But if i add camera support i cannot see the board. I tested on "...
sulianoar's user avatar
  • 1
2 votes
0 answers
141 views

I want to generate two signals on the DAC outputs of ESP32, the sine and cosine ones, thus shifted by 90 deg. But I have the same signal on both DAC outputs. From the Espressif documentation I found ...
Andrei Krivoshei's user avatar
  • 561
1 vote
1 answer
125 views

I want to generate two signals on the DAC outputs of ESP32, the sine and cosine ones. But I have no signal on the DAC outputs. Please, do not offer answers for the Cosine Wave Output mode (Cosine Mode)...
Andrei Krivoshei's user avatar
  • 561
1 vote
0 answers
43 views

I'm now trying to write to the Control Point Characteristic according to the ANCS - Apple Notification Center Service using an Arduino ESP32. This is my current definition for the notification ...
Đức Thanh Nguyễn's user avatar
  • 9,485
0 votes
1 answer
101 views

Using a ESP32 BLE connected to Arduino IDE, I'm now trying to Get Notification Attributes by sending command to Control Point of Apple Notification Center Service (ANCS). This is the code static void ...
Đức Thanh Nguyễn's user avatar
  • 9,485
0 votes
0 answers
146 views

I'm playing around with this library and reading through the Apple Notification Center Service(ANCS) but still have a hard time getting message and title of an iOs notification forwarded to my esp32 ...
Đức Thanh Nguyễn's user avatar
  • 9,485
2 votes
0 answers
88 views

I'm struggling with an ESP32 library. As premise, the ESP32 module I'm using has a 2 MB PSRAM on-board. I wrote a test code to verify it's working: void setup() { Serial.begin(115200); while (!...
Mark's user avatar
  • 5,355
1 vote
0 answers
104 views

I am working on a project using an ESP32-CAM to detect humans and control appliances like a fan and a light based on Al inference. For this, I am using the Chirale_TensorFlowLite library to run a ...
Kamal Medhi's user avatar
  • 11
0 votes
0 answers
254 views

I'm working on a project where I need to capture audio data from an INMP441 microphone on an ESP32, encode it as Base64, and send it over a WebSocket to a Node.js server for transcription using Google ...
michael lai's user avatar
  • 1
0 votes
1 answer
435 views

I have recently purchased a ESP32-C3 1.28 Inch Round Display. No documentation nor reference were provided with the hardware :( I made a nice UI on SquareLine studio to be run on my ESP32-2424S012. I ...
colletjb's user avatar
  • 301
1 vote
0 answers
305 views

I’m working on interfacing a ZTW523A touch controller with an ESP32 via I2C, but I’m facing issues with I2C timeouts (Wire.h error 5: timeout) and I am unable to detect the device using an I2C scanner....
ChrisM's user avatar
  • 11
0 votes
1 answer
135 views

I am trying to get the German Umlaute ÄÖÜäöü and ß to be displayed on a standard SSD1309 OLED Display. I used the Adafruit GFX Font customizer to get the byte code for the extra letters. After trying ...
Lipe's user avatar
  • 71
0 votes
1 answer
66 views

My objective is to turn on my microcontroller (esp32-devkit-v1) and have it reconnect to the last wifi it was connected to prior to being turned off. If that SSID isn't in range, scan for new ones and ...
Eduardo Isla Venegas's user avatar
  • 95
0 votes
1 answer
209 views

I'm trying to make an OTA on my ESP32. The cpp is OK and manually triggering the update works fine but when I click on VS Code on the "Upload" button, it defaults to "COMx" instead ...
Ñhosko's user avatar
  • 825
1 vote
1 answer
132 views

Apologies for the length of this thread. Essentially, I've managed to set up an active connection between my ESP32 and a local XAMPP server. This server stores a captured image from the ESP32, which ...
Kingwebbie001's user avatar
  • 31
-1 votes
1 answer
72 views

I have a CERES PCB and i need to communicate with this PCB as Slave using SPI bus. The problem is I very low on knowledge regarding any types of communication. Below is the command list i need to do. ...
hisyamuddin hamzaini's user avatar
  • 1
0 votes
0 answers
139 views

Hardware: ESP32-C3-DevKitM-1 IDE: Arduino IDE OS: Windows 11 Issue: When I run ESP32C3 Dev Module example project RMakerSwitch and RMakerCustom, it shows the following error. It's an example code, why ...
Steven Wang's user avatar
  • 19
0 votes
1 answer
74 views

I'm working on a project where a Mixer mixes the perfect drink for you. However I used every digital pin for sensors and now I thought I could just use the Analog Pins to control the Relays for the ...
Inuri's user avatar
  • 11
0 votes
1 answer
494 views

I have two ESP32 boards connected back to back through a serial cable, using pin 16 for Rx and 17 for Tx. They exchange simple hello world messages through the serial2 hardware port on the ESP32. The ...
Raja's user avatar
  • 1,319
1 vote
0 answers
53 views

I need help with an issue, I am making a custom flight controller using an esp32 based on this repository: https://github.com/pratikPhadte/ESP32-Flight-controller-.git, I adapted the code to try and ...
Juanan2402's user avatar
  • 11
0 votes
2 answers
329 views

We upgraded our custom PCB to ESP32-S3 and thus I am upgrading my firmware too. Unfortunately, the BLE connecting to it, I got a crash in the BTC_TASK (See below for extended information) By looking ...
Stéphane de Luca's user avatar
  • 13.7k
4 votes
1 answer
139 views

I'm trying to stream video using the IP address but what I get when I access the browser (Google Chrome) is a white screen. I have been using the board for capturing pictures (using the same code ...
DM10's user avatar
  • 51
1 vote
0 answers
219 views

I'm trying to display graphics using tft_espi while doing wifi stuff, but it seems that turning on the wifi module causes display updates to cease working. I've tried rewriting the code using FreeRTOS ...
Zico's user avatar
  • 255
0 votes
1 answer
235 views

I have a Arduino script running for a few years now. Recently I wanted do some minor updates, but I've been running into problems ever since. Even when I run the older version (the version running ...
Paul Heuts's user avatar
  • 11
0 votes
0 answers
73 views

It is advertised/part of the defined parameter list that esp_deep_sleep takes in a uint64_t as a parameter, representing the amount of microseconds to sleep the ESP32, however I believe this is a bug. ...
reZach's user avatar
  • 9,569
0 votes
1 answer
265 views

I'm using the Web Serial API to read data from an ESP32 device via a USB connection, but I consistently encounter the error "BufferOverrunError" in my browser when trying to read data. Setup:...
Julien's user avatar
  • 1
0 votes
0 answers
80 views

I am doing a project where I need to measure small differences in weight (like 0.01g differences). Right now I am using this load cell (with 300g of max capacity), with this HX711 amplifier and this ...
Francisca Lima's user avatar
  • 1
1 vote
0 answers
329 views

I tried to compile TimerInterruptTest.ino example from library ESP32TimerInterrupt. I'm not sure but it looks like that because of library update. But, when I try to compile it throw me this error: In ...
Византија Исток's user avatar
  • 11
0 votes
0 answers
93 views

I programmed an ESP32 as an I2C slave. I was using arduino IDE to program the ESP32 and the version installed in the boards manager is 2.0.17. When I tested it with a master, the data order was ...
Umer's user avatar
  • 588
0 votes
1 answer
254 views

I am a bit of a newbee on this but I have managed this ESP8266 socket server used to publish AIS/GPS data on my boat-network. This cannot serve multiple clients. Clients do not send anything. Just ...
Aad Bloem's user avatar
  • 1
0 votes
0 answers
157 views

After submitting the values in web server,the wifi will turn into OFF state.After that im getting this error.This error causes esp32 starts rebooting and starts running from beginning of program Tried:...
Charan kalidindi's user avatar
  • 1
0 votes
0 answers
33 views

I am trying to use the #include <WiFi.h> but it is not working. I am using the blynk. I have also used the temperature which is needed in this project. When I remove the <WiFi.h> then it ...
DURVESH NIRANJAN GANGAN's user avatar
  • 1
1 vote
0 answers
468 views

I'm trying to build a sketch in Arduino IDE with LittleFS to work on my ESP32-S3. and got an error about corrupted LittleFS My code: #include <EEPROM.h> #include <DNSServer.h> #include <...
Mamedov_A.'s user avatar
  • 51
0 votes
2 answers
266 views

I have been trying to use a code to calculate the volume of the liquid in a horizontal cylindrical tank. I will use an esp32 micro controller to take sensor data and calculate the volume of water in ...
Hansie's user avatar
  • 17
0 votes
0 answers
222 views

I'm trying to make a module that both works with WiFi and SIM7600 module. The module receives a long (~300 KB) JSON file from an HTTPS server and saves it to flash memory. The function that works with ...
Barkın Sarıkartal's user avatar
  • 1
1 vote
0 answers
208 views

I'm trying to send a command to ESP32. I'm using Xampp to run my Laravel project which is outside my xampp htdocs. My Laravel Project works fine even if its outside htdocs but when I try to give ...
mona molina's user avatar
  • 11
0 votes
1 answer
65 views

I dont understand why this is not working... will try to explain the best I can: in main I need an object of class Sim800Cls. Sim800Cls on the other hand, needs an object of class Prueba. both ...
patsy2k's user avatar
  • 745
2 votes
1 answer
624 views

I keep getting the error in the title when trying to upload a sketch. I have tried to switch to different USB ports, resetting the ESP32 camera wrover, resetting the IO extension board and the UNO and ...
nathan-blackburn's user avatar
  • 33
0 votes
1 answer
115 views

I have this code: #include <Arduino.h> #include "esp_timer.h" //volatile int iCounter; <-- Uncommenting this line makes iCounter update in myTestFn() class Test { public: ...
Michael Hanagan's user avatar
  • 33
0 votes
0 answers
87 views

I have this code in my esp32-cam there is no error, but when 20 seconds of video is recorded, an AVI file is created in the SD card, and it has no size, it is 0 KB and it doesn't show anything. No ...
Mr.Programmer's user avatar
  • 11
0 votes
0 answers
97 views

I hope you are all doing great. As the title says, I'm using an ESP32 and when I try to call the WiFi.begin method within a class's constructor, the ESP32 watchdog is triggered and reboots the device ...
Juan_David's user avatar
  • 136
0 votes
0 answers
163 views

I have a project on Arduino IDE that uses an ESP32, and it uses BLE and BT (Bluetooth). I decided to move my project to platfromIO using the VSCode extension as it is easier to manage and I copied my ...
user26881429's user avatar
  • 1
1 vote
1 answer
804 views

I need to see some feedback in my setup() code within Arduino framework, and am using a simple Serial.println(), but it never appears unless I add a delay. Sometimes even the Serial.println() in loop()...
AndrewCSP's user avatar
  • 63
-4 votes
1 answer
42 views

This is my first project that I make an Android app and my app always stop when i run it, this error below I found in Logcat 2024-08-13 16:11:02.769 13034-13034 System com.example....
user23049825's user avatar
  • 1
1 vote
1 answer
514 views

Environment ESP32-WROOM-32UE. I need to run WiFi.scanNetworks() asynchronously for my project. My sample code returns a list of discovered networks however the output during WiFi.scanComplete() does ...
Perthboy's user avatar
  • 327
-1 votes
1 answer
471 views

I can't flash esp32-cam because gives up error of command "WiFi.onEvent(WiFiPointConnected, SYSTEM_EVENT_AP_STACONNECTED);". SYSTEM_EVENT_AP_STACONNECTED is built-in parameter in Arduino IDE....
Idea Softworks's user avatar
  • 11
0 votes
1 answer
89 views

Probem: Esp32-cam don't create access point after flashing, and repeats attempt connection code, because can't execute command "WiFi.softAP("ESP");". Does anyone know how to solve ...
Idea Softworks's user avatar
  • 11
0 votes
1 answer
282 views

I have been trying to connect my ESP32, which is connected to SIMCOM's SIM7600 GSM Module, to Azure IoT Service. Connecting to Azure IoT Service over WiFi was rather easy because there were already ...
İsmail Altay Ataman's user avatar
  • 13

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