Category "arduino-uno"

serial.serialutil.SerialException: could not open port 'COM3': FileNotFoundError(2, 'The system cannot find the file specified.', None, 2)

i'm making a web server that can contro an arduino with python and i get this error: serial.serialutil.SerialException: could not open port 'COM3': FileNotFound

Data are not saved in the Arduino SD

I have created a code that takes temperature measurement data and saves it in a variable. Now I would like to save the data in a .txt file inside an SD card con

Arduino uno SD Card storage problems

I am not able to format my SD card SanDisk ultra 64GB for unknown reasons. Regardless, I have the SD card module and Arduino Uno setup as follows: SCK -> PIN

Problem with Arduino OV7670 content display

Recently I tried to use Arduino UNO with OV7670 camera and ST7789 display. Plan was to fill screen with camera content and with red color over camera bounds. Co

why are my first and second LED not lighting up? is it a problem with the for loops?

When I power my Arduino it only lights up the 2-5 and leds and skips the 1st and the 6th led. I tried seeing what's the problem by giving a check on the value o

Multi Threading from a function to another function and back to the main function

currently this is my setup, python in PyCharm, and an Arduino Uno with MAX30100 sensor for heart rate. I am currently able to transmit data via pyserial into my

Why is VS Code throwing this error (ARDUINO)?

Okay, so I'm trying to code & upload to an Arduino with VS Code (Visual Studio Code). When I try to upload or verify my Arduino code, this error pops up: I

Arduino Uno - minimize memory usage

I have a Weather Meter, and I am able to read data from it. My problem occurs, when I try to use the library UnoWiFiDevEd.h send the data to store the informat

Arduino Uno - minimize memory usage

I have a Weather Meter, and I am able to read data from it. My problem occurs, when I try to use the library UnoWiFiDevEd.h send the data to store the informat

Error on sending AT+CWJAP_DEF commands to ESP8266

I am trying to send AT commands to ESP8266 to get connected with internet with the Wifi. When I am sending AT and AT+RST command on serial monitor then I am ge

Controlling relays through webserver with an arduino and ethernet shield but can't add more than four buttons, HTML page doesn't load

I have a software problem, I'm controlling relays through ethernet shield and arduino. I got a code from the net which works great and i can control the relays