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Questions tagged [esp32-s3]

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What is the most efficient/fastest way to send a float from one task to another?

I am controlling a motor and also writing to an LCD screen. I am drawing a dot around the edge of the screen based on the rotation of the motor. The motor requires fast operation to run smoothly, so I ...
Jordan Klaers's user avatar
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ESP32S3 DevModule HTTP Update Failed

I am trying Esp32HTTPUpdate.h library in ESP32S3 DevModule. I used the example code of that library with simple modifications like servername, WiFi ssid and password. /** * httpUpdate.ino * * ...
EDExpert's user avatar
1 vote
2 answers
74 views

Heltec WiFi LoRa 32 (V3) - Encode/decode packets to binary (make message shorter)

I'm using Heltec WiFi LoRa32 boards (ESP32-S3 + SX1262). Could you please help me how to encode data e.g. from temperature and humidity sensor into binary or hexadecimal form - to make the LoRa packet ...
iotdeveloper's user avatar
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1 answer
84 views

Compressing grayscale image with ESP32-S3-WROOM Freenove

I have a ESP32-S3-WROOM module by Freenove which has a camera and a micro SD card module. I can take a snapshot as a PIXELFORMAT_JPEG photo. However, when I change the pixelformat to "...
BehicMV's user avatar
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2 answers
2k views

How to use an external 32kHz crystal for ESP32 S3 with Arduino IDE?

I want to use an external 32kHz crystal for RTC with ESP32 S3, but I didn't see any example or tutorial for Arduino IDE, Even when I asked ChatGPT, it gave me some example but the code gave library ...
mehmet's user avatar
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0 answers
503 views

ESP32 S3 Same code works on Serial1 but NOT on Serial0 for RS485 module

I have designed a test board to understand ESP32-S3 working pins. I am using USB interface D+, D- for programing so Serial0 is free to use. This is my test circuit for testing an RS485 converter. For ...
mehmet's user avatar
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91 views

ESP32 Camera driver VSYNC query

We are new to ESP32 and Camera. We are facing issue in getting VSYNC event. We observed that if we change fb_count (frame buffer count) value the VSYNC behavior is changing. Our understanding is, ...
Abhay Kondru's user avatar
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194 views

Image capture at QSXGA resolution by OV5640 in ESP32s3

// Include necessary libraries #include "WiFi.h" #include "esp_camera.h" #include "Arduino.h" #include "soc/soc.h" // Disable brownout problems #...
Vikas Sinha's user avatar
2 votes
1 answer
640 views

Is it possible to use UART0 freely when connecting ESP32 s3 via USB (D+, D-)?

I've designed a test PCB that utilizes an ESP32 S3 and testing pins. During program uploads, I use the USB interface over GPIO20 and GPIO19 as D+ and D-. Everything works fine in this configuration. ...
mehmet's user avatar
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2 votes
1 answer
163 views

Limit of EthernetClient connections

I'm working on a project on which I need to have multiple EthernetClient connections to different servers. All of these connections must be kept alive simultaneously and by this I mean I cannot stop ...
Mazaetos's user avatar
1 vote
2 answers
538 views

Why Arduino IDE is brignging wrong board name for ESP32 S3

I am designing a pcb for ESP32 S3 wroom-1 for testing pins which are safe to use. My PCB look like this: I program ESP32 S3 via USB interface gpio19 "D-" gpio20 "D+". When I plug ...
mehmet's user avatar
  • 287