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It is almost a week that I'm trying to find a ready to use cloud solution for my IoT projects which mostly are based on ESP32 hardware. My Ideal is that I develop the embedded system with Arduino ...
AKTanara's user avatar
  • 254
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0 answers
49 views

I'm a bit stuck as I've written some code for an ESP32 which is supposed to do two things: Retrieve some JSON from an HTTP source, and parse it with ArduinoJSON - this works in isolation; Display ...
blurbm's user avatar
  • 1
-4 votes
1 answer
171 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 ...
Alex's user avatar
  • 67
1 vote
0 answers
92 views

I decided to program a PWM using an ARDUINO UNO R4 WIFI. I tried to configure the RENESAS RA4M1 microcontroller with the FSP libraries through the Arduino IDE. What I want to do is generate a PWM and ...
Victor Prosper's user avatar
  • 11
1 vote
0 answers
104 views

I’m working on an ESP32 project that uses WiFiManager (https://github.com/tzapu/WiFiManager). The first connection works fine: when there are no saved credentials, the ESP32 starts an Access Point, I ...
nima's user avatar
  • 13
1 vote
1 answer
102 views

I’m building an analog clock on an ESP32 Wrover Kit with a TFT LCD using the TFT_eSPI library. The clock displays the correct time using NTP, but I have a problem with the hands: When the hands move, ...
nima's user avatar
  • 13
0 votes
0 answers
143 views

I am currently facing a problem that I run out of idea. I have a waveshare ESP32-S3-Touch-LCD-2 (https://www.waveshare.com/wiki/ESP32-S3-Touch-LCD-2) that features a display, SD cardslot and camera. ...
bennnil's user avatar
  • 35
0 votes
2 answers
103 views

I've got an ESP32-POE running a web server as well as publishing MQTT to a broker. I want to publish MQTT every 60s but sticking that delay into void loop(void){} means server.handleClient(); is also ...
Spags's user avatar
  • 19
0 votes
2 answers
115 views

I built a custom PCB with an ESP32-WROVER-IE-N8R8 to read a pressure difference in a filtration system. The data is then send via MQTT to a MQTT Broker (Mosquitto) on a Linux Server. This happens ...
ThoryF's user avatar
  • 11
0 votes
1 answer
101 views

I'm using an ESP32-based µC board (Olimex ESP32-SBC-FabGL) together with the Arduino 1.8.19 IDE. Now I'd like to access the GPIO and I²C pins on the CH32V003 on-board port expander. Using FabGL ad the ...
Neppomuk's user avatar
  • 1,222
2 votes
1 answer
105 views

When I've developed for the ESP32, I've always included the linker attribute IRAM_ATTR when I've declared functions called from interrupts. This is based on https://docs.espressif.com/projects/esp-idf/...
axlan's user avatar
  • 1,013
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82 views

I try to setup a 10bit pwm with analogWriteResolution(LED_R, 10); but I get the following output: [esp32-hal-ledc.c:793] analogWriteResolution(): analogWrite resolution cant be set due to selected ...
vlad_tepesch's user avatar
  • 7,027
0 votes
1 answer
68 views

I have an ESP32C3 application based on platformio with secure boot enabled, i.e., after booting I read out the following information from the partition table: Partition Name: nvs Type: 0x01 - Subtype:...
Jens's user avatar
  • 6,518
0 votes
2 answers
77 views

I'm trying to connect a fingerprint sensor (Adafruit type) to my ESP32 (DOIT ESP32 Devkit V1), but the Serial Monitor remains completely blank, even though I'm using Serial.begin(9600) and printing ...
R T's user avatar
  • 19
0 votes
0 answers
90 views

ESP32, Arduino Framework, using these libraries: lib_deps= ESP32Async/AsyncTCP ESP32Async/ESPAsyncWebServer https://github.com/guestisp/ESP32AsyncDNSServer.git here the relevant code: #...
Mark's user avatar
  • 5,355
0 votes
1 answer
135 views

I'm fighting with this code to make it work... The aim of it is to control a LoRa module from the hspi pins of the esp32 while the vspi pins will be used by an sd module (not provided in this code). I ...
Jeremy Cools's user avatar
  • 3
0 votes
1 answer
648 views

I hope someone can help we with some errors I get from the ESP-IDF Watchdog Timer functionality. What I'm trying to do I'm trying to use an ESP32-CAM to post messages on the Mastodon social network. ...
Ralph's user avatar
  • 23
0 votes
0 answers
209 views

My LilyGO TTGO T-SIM-A7670E R2 ESP32 - ESP32-WROVER sudddenly couldn't access my Azure Function App anymore. It has been functioning non stop for more then 2 months. Without a problem. And then, out ...
Rikkert's user avatar
  • 75
0 votes
0 answers
51 views

I have troubles with a mysterious delay on ESP32s. It makes my project work incorrectly. For example, to exclude another reason, I show it on empty project. This is the code: loop() { Serial.print(&...
Tim Y's user avatar
  • 1
0 votes
0 answers
89 views

I am trying to compile some C code for the ESP32-S3-DevKitC-1 using timers in VS Code. I am trying to use the new(?) hardware/timer code in version 3 of the Arduino ESP32 extension, but my VS Code ...
user1045680's user avatar
  • 935
1 vote
1 answer
146 views

I am trying to get a hardware timer in an ESP32 to start and stop based on states in a FSM.I have read quite a few ESP32 Timer Howtos, and I am still not getting it to work. The timer functions ...
user1045680's user avatar
  • 935
0 votes
0 answers
121 views

I am trying to upload code to my ESP32, but I keep getting the following error: A fatal error occurred: Failed to connect to ESP32: Download mode successfully detected, but getting no sync reply: The ...
Yax Patel's user avatar
  • 1
2 votes
0 answers
64 views

I am coding an RC car in the Arduino IDE. Here are the specs of what I use: Arduino Nano esp-32 Wifi protocol: esp-now Motor: AL-2835-10 The receiver and the sender are both the same Arduino and are ...
Timo's user avatar
  • 21
0 votes
1 answer
53 views

I have a VFD display and I'm trying to control it via an esp32. The display manufacturer provided an official Arduino code that works well, but when I try to port this code to ESP-IDF I cannot make it ...
Jozef Cipa's user avatar
  • 2,227
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0 answers
22 views

I'm currently getting an issue when sending data per frame, the last thing sent sometimes doesn't appear on the device. I have a feeling there might be something on the Arduino side of things that I ...
Darin Palermo's user avatar
  • 1
1 vote
1 answer
157 views

In the setup form of an ESP32 device the Update button works in one card only. For the setup page jquery, ajax, bootstrap and arduino jsonformer libraries are used. The dialog is mainly generated by ...
autoguider's user avatar
  • 35
0 votes
1 answer
205 views

like the title suggests, I am using an esp32 and want to output a mp3 file from an SD-card via the i2s-Amp MAX98357a. To begin with, I was trying to get an example from the library running, but it ...
Sera's user avatar
  • 1
0 votes
0 answers
53 views

I encounter this error whenever I try to connect to the InfluxDB Server Version 2.x that is locally hosted in my network. I've been looking for a solution but can't find any. I use an ESP32 without ...
Geierhoppjo's user avatar
  • 1
1 vote
0 answers
43 views

I am trying to initialize and use the NittoBend's 2-axis Bending sensor with the ESP32 Feather (coded in Arduino IDE). I have the circuit setup correctly (GND to GND, VCC to 3.3V, nDRDY to GPIO 32, ...
user29732056's user avatar
  • 11
0 votes
1 answer
95 views

I am writing a 'universal menu' for an ESP32 WROOM, with a Waveshare 240x240px round LCD and a rotary encoder. To ensure it is universal, I have externalised some JSON that describes the menu ...
Greg's user avatar
  • 377
2 votes
0 answers
96 views

I'm using platform IO for my project. When I define my characteristics, only the first one defined and added to the service will be displayed by nRF. I did the tests by swapping the two features and ...
Matteo's user avatar
  • 21
0 votes
1 answer
109 views

I am running a BLE server on an ESP32 which is sending the value of time periodically. This code is being run on Arduino IDE. On the other hand, I have a Python code running on my PC which needs to ...
Mobi Zaman's user avatar
  • 645
0 votes
0 answers
65 views

I'm using the Espressif Arduino BLE library on an ESP32C3. The ESP32 acts as a central device and connects to a peripheral Raspberry PI running Linux. I am attempting to send a relatively large amount ...
MrSomeone's user avatar
  • 182
0 votes
0 answers
114 views

I have a problem with writing code for the ESP32 WROOM to process a signal from an ELRS PWM receiver and subsequently control two motors using a driver. The code compiles, but the system monitor shows ...
GenykS's user avatar
  • 1
0 votes
0 answers
36 views

This is the code I have written to connect my Xiao Seeed ESP32-S3 board to a mobile hotspot #include <WiFi.h> const char* ssid = "rrrr"; const char* password = "rrrrrrrr"; ...
RIDDHIDIPTA PAL's user avatar
  • 1
0 votes
0 answers
89 views

I am trying to make a "pairing mode" with my ESP32 BLE server, where I want the previously paired device to be able to join whenever no devices are connected, but when the user presses a ...
Nv7's user avatar
  • 436
0 votes
1 answer
251 views

I am trying to do a mini tank that is controlled by a webserver in my local WiFi (hosted by PC). I am fighting with one main problem - when camera stream is active websockets stops answering and after ...
KamilG's user avatar
  • 1
0 votes
0 answers
290 views

I am trying to use a pressure sensor on an ESP32 and then plot a live updating graph. The code I used worked perfectly when using my home network but when making the switch to creating my own network ...
Agasthya Valluri's user avatar
  • 9
1 vote
1 answer
161 views

I need to write a code to send data via UART. I wrote a test code on Arduino IDE in a .ino file and it worked perfectly. Now I trying to shift the code to a .c file. My code is as follows: #include &...
Mobi Zaman's user avatar
  • 645
2 votes
1 answer
599 views

Got myself an esp32, compiled and flashed the first code with my laptop, everything worked fine. Tried to flash a different code on the same laptop, and it gave a pretty scary error, it doesn't want ...
SuperCarrot's user avatar
  • 53
1 vote
0 answers
345 views

I’m working on an ESP32 project using the Arduino IDE, and occasionally, the Serial Monitor displays garbled characters instead of the expected output. The baud rate in the Serial Monitor is set to ...
0xdeadbeef's user avatar
  • 607
1 vote
0 answers
40 views

The wifi client returns no data when I add in print statements on the library. The issue happens right after I add this line to the loop. success = nfc.readPassiveTargetID(PN532_MIFARE_ISO14443A, uid, ...
devvin's user avatar
  • 11
-1 votes
1 answer
95 views

I am trying to get an ESP32 (sender) to send a http get Request to a second esp32(receiver) via WiFi. For that i want the sender to be in WIFI_AP_STA mode and connect to the receiver (AP-Mode) and ...
Nils Haverkamp's user avatar
  • 1
0 votes
0 answers
59 views

We are using a XIAO Seeed ESP32S3 board as a microcontroller. We have managed to make the fan run but it only runs in either 0 speed or 100% speed (the speed control is not working). The D2 Pin of the ...
RIDDHIDIPTA PAL's user avatar
  • 1
0 votes
0 answers
173 views

I’m trying to use an MQ2 gas sensor with my ESP32, but I’m having some issues. I've already done the preheating process for the MQ2 sensor, but the analog reading from the sensor always shows 0 in the ...
HannTu's user avatar
  • 1
0 votes
0 answers
61 views

i am trying to connect my logitech to g27 and configure it and read values from it but im have trouble doing so , i setup my esp32-s3 using platformIO espidf and the board be esp32OTG , tried the ...
Talal owaid's user avatar
  • 1
0 votes
1 answer
96 views

I am using an ESP32-WROOM-32E with 2 MB PSRAM. If I comment out the begin of the vspi, the code will not crash. (Any help would really be appreciated!) vspi = new SPIClass(VSPI); vspi->setHwCs(...
Daniel Winsor's user avatar
  • 1
0 votes
0 answers
127 views

I've started a personal project. The idea is to output PWM on pin 8 (GPIO8) of a ESP32-C3 using LEDC peripheral on an ESP32-C3 using assembly language (RISC-V) with ESP-IDF. I've started by ...
Léo Dupuy's user avatar
  • 1
0 votes
0 answers
109 views

I'm trying to make a small web server for my ESP32 using the Arduino environment. I would like to switch from Arduino's WebServer to ESP-IDF's esp_http_server because it has useful features like ...
Maxime's user avatar
  • 5
0 votes
0 answers
31 views

I am trying to integrate an imu with my 3 wheel omni drive. Individually the imu yaw correction part works and individually the drive movement part works but for some reason which I am not able to ...
Chirayu Vyas's user avatar
  • 1

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