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I'm having a problem with connecting to my ESP32S dev board using Thonny. When I connect to the board using the board's USB-to-serial port, I get a whole lot of rubbish output (as shown in the below ...
Agi Hammerthief's user avatar
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76 views

I am having troubles with making this setup work consistently. Sometimes it gives a final reading of negative even though it theoretically should be positive. The values should read about 0.6 - 0.8 ...
QDqrk's user avatar
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Hi im using the AD5933 module to gather simple impedance, im using it on the skin. My code works almost perfectly initially when i had a pre-calibrated it through code. However, i added relays between ...
king cannibal's user avatar
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2 replies
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I want to preface this by saying I am a complete amateur to web development of any kind and this is my first foray into web development of any kind, so please forgive any dumb questions or assumptions ...
Colby Johnson's user avatar
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1 answer
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I am creating a project for an ESP32. I'm quite new to ESP and C++ coding. I use PlatformIO inside VSCode. It's a robot that will be driving around. It has Ultrasonic sensors to detect any obstacles. ...
Ben Scheid's user avatar
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2 replies
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im trying to download the esp32 library on arduino ide for my laptop but is max storage, i have a 32gb that i store apps on it, how to change the esp32 package to the 32gb storage (i installed the ...
i_am_newdv's user avatar
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0 answers
41 views

I used this code, but speaker just playing some dont understandble sounds I connected: ESP32 → pin 26 → LIN PAM8406 GND ESP → GND PAM8406 PAM8406 L+ L- → speaker PAM8406 VCC GND → POWER SUPPLY 5V ...
THE COOLEST PRO's user avatar
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Tooling
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1 replies
54 views

I am aware that the default build system of the IDF is Ninja, but out of curiosity, is it supposed be possible to be built when I have cmake generate Makefiles for traditional make, 'out of the box' ? ...
zrx8's user avatar
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0 answers
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I am developing a Flutter app to communicate with an ESP32 acting as an Access Point (AP). The ESP32 has a static IP 192.168.1.1 and is running an HTTP server and a WebSocket server on port 80. The ...
Encuesta Satisfaccion's user avatar
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3 votes
1 answer
226 views

I have a small microprocessor device called an M5Dial from M5Stack. It features a small 240px x 240px screen, though the visible area is circular, not square. It uses the ESP32S3 architecture. I am ...
halfer's user avatar
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5 replies
146 views

Look at the following code for a smart thermostat state machine and tell me which coding practices have not been followed in the design of this state machine and what can be its fallouts? What should ...
Imran Mumtaz's user avatar
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4 votes
0 answers
154 views

Im trying to make a smart clock with eez studio. My board ist esp32p4 smart 86 box. I have this simple code with lvgl adapter: #include <esp_lcd_panel_dev.h> #include <esp_lcd_panel_commands....
binchilling100's user avatar
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76 views

I am debugging an ESP32-S3 project using Espressif IDE (Eclipse) + ESP-IDF. I can attach, halt, set breakpoints, and disassemble, but stepping is painful because the debugger always enters functions ...
0___________'s user avatar
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1 vote
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I am trying to initialize an AXS15231B display (model JC3248W535EN) connected via QSPI on an ESP32-S3 using ESP-IDF v5.5.2. The backlight turns on correctly, but the display does not show anything. I ...
Miguel Garcia Silvestre's user avatar
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0 votes
1 answer
120 views

I am trying to build my own ESL to display item data on it. Got the Esp32-c3 working perfectly with a Weact 2.9 inch epaper display BUT I want to get the data out of a mssql database (data is being ...
Thierry Martens's user avatar
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2 replies
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I've got an ESP32 devkit 1 board connected to the wifi, reading data from a google sheet cell 1:1 every 10 minutes. This gives a crude form of remote control, allowing to send data to the device ...
Noideas's user avatar
  • 141
1 vote
1 answer
122 views

Trying to control my program time flow with a IRQ, all supervised from a WDT (watchdog) set at 1 min, if program doesn't reset the WDT, system resets. After boot (NVS and FS data fetching), a TIMER is ...
Daniel Riofrio's user avatar
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1 replies
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I am writing a system for esp32 with esp-idf that must communicate with an ADC and an SD card over the same SPI bus. Ideally, the ADC reads would be consistently timed, so that if the SD card stalls ...
bbqribs's user avatar
  • 51
1 vote
1 answer
150 views

I want to make a device that will process the car's telemetry data in real time. I am using ESP32 DevKitC v4 + TWAI + SN65HVD230. Connected and unsoldered everything correctly. I wrote the code on ...
Губин Егор's user avatar
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0 answers
51 views

Maybe someone has a code example or knows how to switch the frequency on akk alpha via esp32. I currently have VTX akk alpha 25w. I have already tried all possible options, but I got to the point that ...
Сергій Сергійович's user avatar
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1 vote
0 replies
90 views

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
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Advice
0 votes
3 replies
113 views

I'm facing Internal server error Error code 500 while running the arduino IDE or downloading any library. Is it my system error or some error on the official website server.
Sardar Farhan's user avatar
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Best practices
1 vote
3 replies
150 views

I am using esp-tflite-micro to make some inferences, but it is taking too much time to finish a single inference; enough to trigger the watchdog of the idle tasks. I know I may increase the watchdog ...
Rafael Santiago Altoé's user avatar
  • 79
0 votes
0 answers
91 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
0 votes
0 answers
70 views

ESP-IDF 5.3.4, No Arduino, Win10. I've loaded an official "station" example which demonstrates how to connect ESP32 to a home wifi access point. Made only 2 changes: .ssid and .password in ...
Noideas's user avatar
  • 141
-4 votes
1 answer
556 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
2 votes
1 answer
311 views

The ESP32 cant find the NFC module (Pn532). I used the I2C and SPI without any promising results. I used the Example code and edited the Pins Every time I only Get this result: Serial.print("Didn'...
Moritz Ende's user avatar
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0 votes
0 answers
126 views

I’m trying to connect an ESP32 + SX1262 node to my ChirpStack 1.1 server in IN865 region using RadioLib (LoRaWAN 1.1 OTAA), but OTAA fails with error -1116 (RADIOLIB_ERR_NO_JOIN_ACCEPT). Setup ESP32 ...
Harshit Kumar Shakya's user avatar
  • 1
1 vote
1 answer
201 views

I'm using an esp32 s3 (dual core) and I'd like to transmit DMX signals. The thing is that I have set the resolution as such that each tick is 4us (should be) but what I am getting is bits with way ...
Mart's user avatar
  • 542
0 votes
1 answer
260 views

Is it possible that VSCode code completion only offers those elements in the list that I have already used, but does not read the header files of glibc and the given environment? I use the Espressif ...
zamek 42's user avatar
  • 873
-1 votes
1 answer
397 views

I'm using the Waveshare ESP32-S3 7" LCD with GT911 touch and a built-in SPI SD card. The kit has fixed wiring for the display, touch, and SD, so I can't change the pin mapping. Here's the issue: ...
amirre's user avatar
  • 29
0 votes
0 answers
97 views

While serving a web interface on ESP32 controllers, I find it useful to fall back providing an on-device AP, if the configured WiFi AP is not available after some timeout. This way the device can ...
dronus's user avatar
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1 vote
0 answers
81 views

I want to send data to esp32 via WiFi using UDP, but it'S returning 0 bytes (as 0 bytes sent) For Esp32 I tried with another device (different mobile app), and it's working fine.(Esp32 is OK) Here is ...
Sanjay's user avatar
  • 21
0 votes
0 answers
73 views

I have a google cloud run function that I need to connect to using my ESP32 so that I can obtain a token. But unfortunately, it always gives me connection refused error. I have added the google root ...
Lakindu Muhandirumge's user avatar
  • 1
0 votes
1 answer
127 views

I am still quite new to microcontrollers and ESP-IDF so I am not familiar with the ins and outs of the framework. I wrote a fairly standard code for logging button press and release: #include <...
shah110's user avatar
  • 1
1 vote
0 answers
171 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 votes
1 answer
231 views

I implemented a decision tree with if-else statements involving unsigned 16-bit variables (features) and constants (thresholds), as shown below: static inline int16_6 tree(const uint16_t *input) { ...
Jefferson Cavalcante's user avatar
  • 33
0 votes
0 answers
104 views

I'm trying to connect an ESP32 (as Bluetooth master) to an Arduino Uno that has an HC-05 Bluetooth module attached. My goal is to send serial data between the ESP32 and the Uno. Setup: Arduino Uno ...
Osama Tharwat's user avatar
  • 1
0 votes
0 answers
123 views

I am trying to write data to an SD card on an ESP32-WROOM. My function for file creation is: bool create_file(const char *file_path, const char *data) { if (!file_path || !data) { printf(&...
mauli02k's user avatar
  • 81
1 vote
0 answers
60 views

It seems there was some confusion on what I was asking. The actual question is: What can I do to build a WifiController and return it from a function without needing to create the init_handle outside ...
chw21's user avatar
  • 8,160
1 vote
1 answer
125 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
163 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
2 votes
0 answers
158 views

I am using an ESP32-C3 Dev Module on Windows 11 with Arduino IDE (ESP32 package 3.3.0). Minimal sketches, such as the following, immediately trigger a watchdog reset during startup: void setup() { ...
Luis Silva's user avatar
  • 21
0 votes
0 answers
134 views

I am building a project that uses esp_lcd,and the TSL2591 component from the component library. To my knowledge these are both well maintained and commonly used in the idf, and should be able to ...
LambdaLantern's user avatar
  • 11
0 votes
0 answers
59 views

I am fairly new to programming so I have no idea if what I am doing is right here. This is the datasheet page 71 is most helpful I think, or 71-75. Which I have been following, as well as some ...
Anon's user avatar
  • 1
1 vote
0 answers
207 views

Win10, Latest VSCode. For quite some time, I've been on ESP-IDF 5.0.2 and VSCode version from 2023. 5.0.2 version was installed manually with an offline installer from Espressif. Used it to program ...
Noideas's user avatar
  • 141
0 votes
2 answers
132 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
146 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
290 views

My application using Zephyr RTOS v4.1.0 on ESP32-WROVER-IE and ESP32-S3-WROOM-1 to implement MCUmgr over Bluetooth (SMP transport) based on the smp_svr sample builds successfully, but flashing results ...
Sude's user avatar
  • 13
2 votes
0 answers
70 views

I recently built myself a ham radio repeater and used ESP32 for its control unit. I added Telegram control capabilities to get some status info and force some actions remotely. Using FreeRTOS made ...
Javier López's user avatar
  • 21

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