User Majenko - Arduino Stack Exchange

41 votes

Are global variables evil in Arduino?

answered Jul 11, 2017 at 13:19

40 votes

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Addressable RGB strip works fine individually but cannot set all LEDs to full white

answered Oct 28, 2019 at 0:08

30 votes

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deprecated conversion from string constant to 'char*'

answered Jul 14, 2015 at 15:10

28 votes

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NodeMCU - Vin pin as 5V output?

answered Apr 16, 2018 at 8:30

28 votes

How many times can I upload a program or sketch to my Arduino Uno Clone Board?

answered Jun 18, 2018 at 17:41

27 votes

Why does Serial.print print only a value for 0-84 for a 100 integer array?

answered Apr 19, 2018 at 11:16

26 votes

Using String instead of C string, yet another attempt to touch a loaded issue

answered Jul 13, 2021 at 17:41

22 votes

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Difference between these two NodeMCU boards?

answered Jul 21, 2018 at 16:33

20 votes

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Does an Arduino get worn out by too much command execution?

answered May 20, 2017 at 13:16

20 votes

Why use an int variable for a pin when const int, enum or #define makes much more sense

answered Aug 14, 2015 at 9:12

18 votes

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How to avoid that my arduino clicks eternally?

answered Jun 15, 2015 at 17:09

18 votes

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Can the Arduino interface with USB devices without the USB host shield?

answered May 13, 2016 at 16:02

18 votes

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Convert int to char[]

answered Jul 24, 2017 at 20:26

17 votes

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What to do with Arduino floating pins?

answered Feb 24, 2020 at 18:22

17 votes

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Why can't I define the constant A0 (some pin) to something?

answered May 15, 2017 at 12:31

16 votes

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Burning Arduinos one after another

answered Jul 31, 2017 at 15:14

16 votes

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Can I force Arduino not to be powered by USB?

answered Feb 19, 2018 at 16:28

15 votes

What is the best technique to design a 20 push button circuit

answered Aug 17, 2021 at 11:00

15 votes

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Which C++ standard does the Arduino language support?

answered Oct 10, 2021 at 10:58

15 votes

Why connect a diode between the reset pin of Arduino and 555 timer?

answered Feb 7, 2018 at 14:39

15 votes

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Is it possible to print a custom object by passing it to Serial.print()?

answered Jun 19, 2018 at 14:32

15 votes

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What does the line "while (! Serial);" do in an Arduino program?

answered Oct 11, 2014 at 16:52

14 votes

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Analog read not working while using WiFi

answered Jun 26, 2021 at 16:55

14 votes

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Can you use Serial Port as a variable?

answered Oct 19, 2020 at 15:52

14 votes

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ATMEGA328P-U vs ATMEGA328-PU

answered Jun 29, 2019 at 10:37

14 votes

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Why is Serial.Write that slower when writing x+1 characters than when it is writing x characters?

answered Sep 10, 2018 at 18:49

14 votes

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Two batteries sharing ground?

answered Apr 4, 2018 at 15:11

13 votes

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How to output a true analog voltage at output pin

answered Nov 28, 2016 at 10:26

13 votes

Use all pins As digital I/O

answered Aug 21, 2015 at 14:33

13 votes

Accepted

Low Power library messing up serial text

answered Aug 21, 2015 at 15:08

Stack Exchange Network

3,719 Answers

Are global variables evil in Arduino?

Addressable RGB strip works fine individually but cannot set all LEDs to full white

deprecated conversion from string constant to 'char*'

NodeMCU - Vin pin as 5V output?

How many times can I upload a program or sketch to my Arduino Uno Clone Board?

Why does Serial.print print only a value for 0-84 for a 100 integer array?

Using String instead of C string, yet another attempt to touch a loaded issue

Difference between these two NodeMCU boards?

Does an Arduino get worn out by too much command execution?

Why use an int variable for a pin when const int, enum or #define makes much more sense

How to avoid that my arduino clicks eternally?

Can the Arduino interface with USB devices without the USB host shield?

Convert int to char[]

What to do with Arduino floating pins?

Why can't I define the constant A0 (some pin) to something?

Burning Arduinos one after another

Can I force Arduino not to be powered by USB?

What is the best technique to design a 20 push button circuit

Which C++ standard does the Arduino language support?

Why connect a diode between the reset pin of Arduino and 555 timer?

Is it possible to print a custom object by passing it to Serial.print()?

What does the line "while (! Serial);" do in an Arduino program?

Analog read not working while using WiFi

Can you use Serial Port as a variable?

ATMEGA328P-U vs ATMEGA328-PU

Why is Serial.Write that slower when writing x+1 characters than when it is writing x characters?

Two batteries sharing ground?

How to output a true analog voltage at output pin

Use all pins As digital I/O

Low Power library messing up serial text