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A cheap and low-power microcontroller family using Tensilica Xtensa LX6 CPU cores with integrated WiFi and dual-mode bluetooth.

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I'm trying to get an NFC reader (PN532 module, HW-147C model) working with my ESP32C6 using SPI. I tried using multiple libraries (seeed-studio, Adafruit, and some on github, but nothing worked). This ...
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When using the ESP-IDF, there are the LEDC-drivers. Basically, you initialize a timer and a channel, so a matching PWM for your LED is the result. ledc_channel_config_t.hpoint ...
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So I am working on an Arduino project and have trouble communicating over UART. I have a SIM7600G-H 4G Module from Waveshare and hooked it up to an Arduino Nano ESP32. The connections are as follows: ...
Bjarne Voigtländer's user avatar
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This error is presenting in Windows 11 because I run this device in PC with Windows 10. How to resolve this issue? A fatal error occurred: Failed to connect to ESP32-S2: Wrong boot mode detected (...
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I'm logging some data using an ESP32 board, and I need the data logged to be uploaded from the ESP32 to one of my repositories on GitHub. Are there any C++ libraries for the GitHub API compatible with ...
Miguel Tomás's user avatar
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I’m trying to build a wireless stepper motor controller using an ESP32 with a TMC2240 driver. I came across this reference design: Wireless Stepper Motor Controller with ESP32 and TMC2240 https://www....
user31256271's user avatar
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I am trying to set up an Arduino Nano ESP32 so that I can code in MicroPython. I successfully installed Arduino Lab for MicroPython and flashed the firmware onto the device, but when I try to run the ...
ehalstea's user avatar
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I am trying to wire up the ESP 32 based Crunch-E keychain synth (gituhub repo with wiring diagram here). In my case I am using a 30 pin ESP Wroom 32 board with pinout diagram here. The Crunch-E wiring ...
ben's user avatar
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I’m facing a persistent reboot issue on one of my ESP32-S3 boards after flashing a larger firmware binary. Here’s a breakdown of the problem: 🔧 What’s Happening After flashing my project (which ...
dev_eng's user avatar
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I am experiencing a delay in receiving the HTTP POST request body when sending data over a TCP connection using the TinyGSM library with a SIM7000G and an ESP32 (LilyGo T-SIM7000G). Below is my ...
NRav's user avatar
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My use case is an ESP32-cam that serves two purposes: HTTP feed (accessed by a Raspberry Pi 5 which processes stream and provides a response) Servo Motor microcontroller: Receives response from ...
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I bought a few Waveshare ESP32C6 Touch LCD 1.47 boards and have had a hell of a time trying to get my sketch uploaded. I somewhat understand that PIO doesn't support esp32c6 because: The ESP32 Core ...
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I have used Arduino IDE to program a IOT gateway using ESP32 and W5500 ethernet module to use them as a ethernet webserver. I wanted to know for educational purpose, I know that sensor belong to ...
Deepak Kumar's user avatar
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Not sure if this belongs more in an electronics SE, but I'll give this a try. I'm trying to use an ESP32-C3 and an NPN transistor (2N5551) to PWM drive an LED (values below). I'm trying a simple fade, ...
Lorenzo's user avatar
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Disclaimer: I'm a programmer, not an electronics expert. I built this car using an Arduino Uno, and now I want to add a camera to it. I’ve tried researching online, but I couldn’t find much ...
Carina's user avatar
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I'm trying to calibrate my MMC5603 magnetometer using MotionCal and the Adafruit SensorLab Jupyter notebook, but my readings seem off. The raw magnetometer values appear to be spread out oddly even ...
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I was trying to display the readings of my dht11 sensor on the Blynk dashboard but I am struggling a lot. A little help would be really appreciated. #define BLYNK_PRINT Serial /* Fill in information ...
KnightRiderDutt's user avatar
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I am trying to run following code: #include <WiFi.h> void setup() { //int16_t scanNetworks(bool async = false, bool show_hidden = false, bool passive = false, uint32_t max_ms_per_chan = 300,...
Kosmada's user avatar
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I have been using Open Weather and Weather Undground APIs for some time. I recently learned the National Weather Service has an API for alerts. I can print out the raw data but not able to parse it. ...
DAVID T.'s user avatar
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I've looked and looked on forums, wrote prompt after prompt in DeepSeek and ChatGPT but I've hit a roadblock. I'm currently working on a project where I want to write numbers in the air using a ...
Bobba's user avatar
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I’m trying to upload code to my ESP32 board using the Arduino IDE, but I’m consistently getting the following error: A fatal error occurred: Failed to connect to ESP32: No serial data received. For ...
Wilson Agene's user avatar
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I want my device/project to encourage others to get into embedded development. I will do this by making the device open source and hackable. Its ESP32 based so that it can be programmed with the ...
Marcus Lechnology's user avatar
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I have a project that uses a GY-53 BMP180 and ESP32. Each time I connect ESP32 to USB after uploading, I get this error: 22:27:27.352 -> rst:0x8 (TG1WDT_SYS_RESET),boot:0x13 (...
Amirali Benvidi's user avatar
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I am running a project where I have multiple ESP32s communicate over WebSockets and I am using the Arduino IDE 2.3.4 for it. The communication primarily uses JSON and sends it as strings. To work with ...
Joel's user avatar
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I have two RFP602 sensors that I use. One connected to GPIO2, the other to GPIO4, each connected to a 1Mohm resistance. The sensor connected to GPIO2 reads the data how I want it, I have to press a ...
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There is a simple PlatformIO sketch (arduino format) that has the following main.cpp file: #include <Arduino.h> #include "esp_camera.h" #include "camera_pins.h" #define ...
Broteen Das's user avatar
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With an ESP8266 it's pretty easy to pass a custom bundle; eg: BearSSL::WiFiClientSecure client; BearSSL::CertStore certStore; int numCerts = certStore.initCertStore(FSTYPE, "/certs.idx", &...
Stephen Harris's user avatar
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I build a PCB using ESP32-S3-WROOM-1-N16R2 Controller. I programmed a BME680 sensor with this MCU. My pinouts are, BME_SCK 38 BME_MISO 19 BME_MOSI 15 BME_CS 5 This is my Arduino code, #include <...
Kuralmozhi's user avatar
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I have created a sketch that updates 195 variables : 16xString variables, 34xfloat, 52xint, 107xbool. Notice : I'm using the IDE tool instead of the included Cloud IoT compile (because I have a pb ...
christophe Hanotte's user avatar
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I have a project where I'd like to have two esp32s communicate using ESP-NOW, but both running on battery. I'd like for both to be in deep sleep, wake up and communicate, and go back to sleep, repeat. ...
user1661890's user avatar
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I'm working on a project where I need to connect my ESP32 (WROOM) to a 3.5-inch, 480x320 resolution LCD designed for the Raspberry Pi, which uses the ILI9486 driver (as suggested by the lcd wiki). I’m ...
fine line's user avatar
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I'm trying to get a reliable hash from a fingerprint scanner to use as a encryption key. According to this post here: https://crypto.stackexchange.com/questions/103693/can-you-restore-a-private-key-...
Ezlanding's user avatar
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Hi, I am using p10 Led display and trying to make digital clock. it works fine but after 2 or more weeks later without any switch off there is a overlaying start on characters. why this happening I ...
mehmet's user avatar
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I am compiling TFT_eSPI library for Arduino ESP32 in 8 bit parallel mode, When I Compile it in SPI mode then no error occurs, but when I select 8-bit parallel mode in User Setup File, then it shows ...
Adil Ahmed's user avatar
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I'm new in using ESP32 boards. For some reasons, the servo motor is not working when RGB LED code is used. I have looked everywhere and I did not see any solution for this. Any help is appreciated. ...
rover cj's user avatar
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I have NodeMCU ESP32s and I am using Arduino framework. I want the ESP to connect to local Wifi, so I set AP on ESP and send to it UDP packet with WIFI credentials. I am doing it in a loop until sent ...
NeverDoomedEnough's user avatar
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I am working on a code for ESP boards that can be used on either ESP32 or ESP8266 and I want to make sure I include the correct libraries. I know I can check if ESP32 OR ESP8266 are defined, but I ...
SagiZiv's user avatar
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I want to control a stepper motor using my esp32 and an USB connection. I seem to have some issue understanding why the stepper motor runs very slowly - I suspect it's because power to the motor is ...
user2305193's user avatar
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I have an ESP32 controller and am using AT24C1024 for communication. In my code, I am trying to access an external EEPROM at positions writing data from 0 to 10000 position data is = '1'. However, ...
Gopal's user avatar
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On my ESP32 I am trying to connect to my HomeAssistant server using ArduinoHA library. I can easily connect when hard-coding the credentials: mqtt.begin("server", "username", "...
SagiZiv's user avatar
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I'm trying to move my hard-coded wifi SSID/password credentials to an SD card so they can be more easily changed, but when passing the SSID to the WiFi.begin() function, I'm getting a status code 1 - &...
radioloko's user avatar
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On my esp32 project, I use Preferences.h to store some values over rebooting. I have the issue that mypref.begin("nameSpc", false); returns 0 in one case, but works in a other part of the ...
MM_303's user avatar
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I'm trying to use PSRAM with the TFT_eSPI library, but it fails because CONFIG_SPIRAM_SUPPORT isn't defined. In Arduino -> Tools -> PSRAM I selected OPI PSRAM as the board manufacturer (the ...
Dakkaron's user avatar
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re. ESP32 Partition size and maximum program size Further to the above issue: The above is a neat little program. However, is there any way I can reference/extract the "app0” “partition->...
Rob's user avatar
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I have an Esp32-E from Firebeetle and LoRa from SBComponents. On both of these devices there are RX and TX pins. I believe that LoRa pins are just an extension of pins found on the Firebeetle. My ...
Roiskam's user avatar
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I am working on a project using a 5v Arduino Pro Mini. To save power I have it power down and wake up every about 15 minutes to check on the battery strength and then power down again. This cycle runs ...
user1114881's user avatar
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I am trying to connect an ESP32 to an Arduino Mega via Serial Communication using the UART 2 ports on both microcontroller boards. There needs to be a common ground between the ESP32 and Arduino. ...
timmy george's user avatar
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The problem is, the following code doesn't work. If I am not using the if to check if there is a signal at GPIO 16, then the code is working. I'm using a ESP32-CAM module. It doesn't save a picture to ...
vukstudent's user avatar
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So I recently bought two Xiao ESP32-C6 from SeeedStudio; they work with Arduino code out of the box. Now I want to flash the CircuitPython bootloader from here https://circuitpython.org/board/...
Clóvis Fritzen's user avatar
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I am learning ESP32 network programming and I started by writing a simple telnet server. It uses a WiFiServer object to listen on port 23 and just log anything it receives to the serial monitor. ...
John Rennie's user avatar
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