Questions tagged [esp32]
A cheap and low-power microcontroller family using Tensilica Xtensa LX6 CPU cores with integrated WiFi and dual-mode bluetooth.
937 questions
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ESP32C6 + PN532 NFC Reader (HW-147C) SPI Communication Not Working - "Didn't find PN53x board" [closed]
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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ESP32 LEDC "hpoint" - Parameter
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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A fatal error occurred: Failed to connect to ESP32-S2: Wrong boot mode detected (0x13)! The chip needs to be in download mode [closed]
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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Missing data when communicating over UART
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:
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Is there a c++ library for the GitHub API and Arduino compatible?
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 ...
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How to adapt this ESP32 + TMC2240 stepper controller design to my project?
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....
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ESP32-S3 continuous reboot after flashing larger firmware
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 ...
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problem with scripts in Arduino Lab for MicroPython
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 ...
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How does a sensor data move from physical layer to application layer
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 ...
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Reassigning GPIOs 6-11 on a 30 pin ESP Wroom 32
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 ...
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How to receive data from an Rasberry Pi on ESP32-Cam?
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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Timer's interrupt is not working in ESP32S2 board
C:\Users\Admin\AppData\Local\Temp\.arduinoIDE-unsaved2024610-7740-sfbutd.e9d77\sketch_jul10a\sketch_jul10a.ino: In function 'void setup()':
C:\Users\Admin\AppData\Local\Temp\.arduinoIDE-unsaved2024610-...
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ESP32 LED PWM fade not working?
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, ...
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Can't sync ESP32 with Blynk
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 ...
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ESP32-S3 Does not read BME680 Data
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 <...
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