Questions tagged [arduino-esp32]

491 questions
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Esp32 sn65hvd230: I can't get it to read in real time

I am working on a project based on the ESP32 processor and Arduino framework, which communicates with another board via CANBUS protocol. The bitrate is 125k so it is presumably "fast". I am using the Sandeep Mistry library or also known as…
WikiLift
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FTDI adapter esp32 hardware serial port doesn’t seem to work?

I am converting a project that formerly used an Arduino Pro along with a Sparkfun Basic FTDI adapter to an ESP32 platform (DOIT DEVKIT V1). The serial adapter is not used to program/debug the target but rather as the data exchange channel…
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I need help bypassing the 50 day limit of millis() function

I am trying to make an incubator. I want it to run some intake and exhaust fans every couple of minutes. For that I decided to use the millis() function, but I also came to know its 50 day limit. Will the code that I have written below work despite…
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How can i list all partitions available on a Flash SPI ESP32 microcontroller

I have an ESP32 pcb electronics and I need to list all partitions the onboard SPI Flash has. I've googled it however I could not find it to this date.
Miguel Tomás
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How to stop blinking relay in arduino

Concept : There is container and it is attached 4 water monitoring sensors.They should turn on when there is water in the container and turned off when there is no water.For sucking water there is 5v mini submerged motor.The water level is…
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Difference in the output between the C code and the Arduino IDE

Why there is difference in the output of pointer size between the C code and the Arduino IDE
lena
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how to solve else/if statement issue?

#include #include "DFRobot_LCD.h" DFRobot_LCD lcd(16, 2); //16 characters and 2 lines of show #define PH_PIN 25 float voltage,phvalue,temperature = 25; float acidVoltage = (1990); //buffer solution at 4.o float neutralVoltage =…
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