Top "Arduino-uno" questions

The Arduino Uno is a microcontroller board based on the ATmega328 and created by Massimo Banzi.

How to read temperature using arduino uno board with PT100 RTD sensor?

I am new to arduino programming. And almost inexperienced. I am looking to program my arduino Uno board to read 2/3/4 …

arduino arduino-uno temperature rtd
OSError: [Errno 13] Permission denied: '/dev/ttyACM0' - using pyserial from Python to Arduino

Environment Linux Mint 17.1 Python 2.7 pyserial 2.7 Arduino UNO rv3 Desired Behaviour I'm trying to send three values from a Python application …

python-2.7 pyserial linux-mint arduino-uno
arduino suddenly shows "avrdude: ser_open(): can't open device "\\.\COM3" after last upload

I am using arduino uno to make a sound detector. I uploaded a program, found error in the code that …

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Mac + Uno + avrdude: stk500_recv(): programmer is not responding

I'm trying to upload .hex file to Arduino. I don't have any problems with uploading code through an IDE (like …

arduino avrdude arduino-uno
Arduino doesn't get recognized

I'm not certain this is the right place to ask, but I've seen other Arduino threads on stackoverflow, so I …

arduino arduino-uno
Cannot upload sketches to Arduino Uno R3 -- avrdude: stk500_recv(): programmer is not responding

Update: I have been told (in the first answer to this question) that I should install the Windows drivers for …

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How to find Co2 and O2 level using MQ135 with Arduino

How to find Co2 and O2 level or any other parameters using MQ135 with Arduino, I just sensed ppm data …

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Getting NAN-Readings from DHT-11 Sensor

I am trying to read temperature and humidity from a DHT-11 sensor with a arduino uno R3 #include <DHT.…

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Splitting a comma separated string through serial (Arduino)

So my arduino is receiving a string from serial, comprising of three values separated by commas, I'm trying to separate …

arduino arduino-uno comma
convert HEX string to Decimal in arduino

i have an Hex String like this : "0005607947" and want to convert it to Decimal number , i test it on this …

arduino hex decimal arduino-uno