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Newest 'esp32' Questions - Arduino Stack Exchange
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Learn more about TeamsQuestions 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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-1
votes
0
answers
43
views
Breadboard alternatives [closed]
I'm trying to build an Arduino IDE project using ESP32. The basic idea is that i'm using 2 ultrasonic sensors to open a servo gate, and sending the data to a database. Right now i'm using a Breadboard ...
0
votes
0
answers
68
views
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 ...
0
votes
0
answers
80
views
How to setup the configuration (User_Setup) of TFT_eSPI for ILI9225 176x220 TFT with esp32?
I was trying to interface my 2 inch 176x220 reslolution tft display having a ILI9225 driver with esp32 using TFT_eSPI library.This is the User_Setup file of the TFT_eSPI library, i edited this to ...
0
votes
0
answers
48
views
ESP32 - SIM7000G and TinyGSM response from server stuck/delayed with multipart/form-data POST request
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 ...
0
votes
1
answer
48
views
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 ...
1
vote
0
answers
46
views
Can't get ESP32C6 to work in PlatformIO. Error is "unsupported ISA substring '_zicsr_zifencei'"
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 ...
0
votes
2
answers
90
views
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 ...
2
votes
1
answer
159
views
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, ...
1
vote
1
answer
61
views
Connect ESP32-CAM to L293D
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 ...
1
vote
2
answers
82
views
Trouble calibrating MMC5603 Magnetometer with MotionCal and Adafruit SensorLab – readings seem off
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 ...
user118038
1
vote
2
answers
72
views
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 ...
1
vote
1
answer
75
views
ESP32 scanNetworks compile error: call of overloaded 'BSSID(int)' is ambiguous
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,...
0
votes
1
answer
42
views
Problem Parsing NWS Severe Weather Alert API using Arduino_JSON.h [closed]
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. ...
-1
votes
2
answers
80
views
How can you trace out the short-term trajectory of a 6DOF IMU
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 ...
0
votes
0
answers
293
views
ESP32 Upload Fails: “Failed to connect to ESP32: No serial data received” (Worked Previously)
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 ...
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