Most popular questions

220 Can I program for Arduino without having a real board? 2014-02-12T06:15:47.017

128 "avrdude: stk500_getsync(): not in sync: resp=0x00," aka Some Dude Named Avr Won't Let Me Upload My Program 2014-02-12T00:08:14.933

96 How can I handle the millis() rollover? 2015-06-12T11:16:30.810

95 Have I bricked my Arduino Uno? Problems with uploading to board 2015-07-09T05:46:30.023

93 C++ vs. The Arduino Language? 2014-03-19T14:34:30.793

88 What are the other IDEs for Arduino? 2014-02-12T04:22:30.253

85 How to organize my Arduino projects' structure for easy source control? 2014-02-22T07:31:10.457

70 How can I create multiple running threads? 2014-02-18T15:11:41.877

61 How do I split an incoming string? 2014-03-31T06:35:44.493

58 How do you use SPI on an Arduino? 2015-09-26T01:06:58.590

53 Is there a way to have more than 14 Output pins on arduino? 2014-02-12T16:42:31.307

52 Is there any way to download a sketch from an Arduino? 2014-02-13T21:23:36.390

52 Is using malloc() and free() a really bad idea on Arduino? 2014-03-09T09:00:25.003

49 What are the 5V and VIN pins for? 2014-10-04T18:26:16.630

48 How do I print multiple variables in a string? 2014-02-13T19:22:59.960

48 How to trigger an alarm when toilet paper is low? 2014-03-02T20:18:51.180

48 What happens if I power the Arduino with both the USB and external power voltage simultaneously? 2014-03-24T10:22:29.783

46 How high of a baud rate can I go (without errors)? 2014-02-19T03:16:57.470

45 Is an Arduino capable of running 24/7? 2014-02-11T22:24:09.530

44 Mac OSX Yosemite no serial ports showing for Uno R3 2015-05-25T19:10:38.890

41 What are (or how do I use) the power saving options of the Arduino to extend battery life? 2014-02-11T22:48:30.837

41 Difference between Arduino.cc and Arduino.org 2015-05-14T11:10:23.023

40 Serial data plotting programs 2014-04-15T09:08:11.743

40 Serial.begin(): Why not always use 28800? 2014-09-06T17:19:55.333

39 Programming an Arduino using Python, rather than C/C++ 2014-02-12T15:31:17.143

36 Why does starting the serial monitor restart the sketch? 2014-02-25T22:51:03.030

33 What is the difference between Serial.write and Serial.print? And when are they used? 2015-04-15T07:13:49.997

32 What are the AREF, IOREF, and the unlabeled pin next to IOREF on the Uno R3? 2014-02-13T00:17:38.463

31 How to get HTTPS on Arduino? 2014-02-11T22:43:08.173

31 How can I connect to an Arduino using WiFi? 2014-02-25T06:50:47.410

30 Arduino as USB HID 2014-02-27T14:37:49.173

30 Most compact method of powering Arduino from wall socket 2014-03-19T14:26:44.540

30 Whats the difference between RF options (wifi, xbee, NRF24L01) 2014-07-12T13:31:50.530

29 What can I do if I run out of Flash memory or SRAM? 2014-02-15T01:09:33.157

29 Is it better to use #define or const int for constants? 2014-02-28T09:46:51.437

29 Arduino Nano uploading gives error: avrdude: stk500_recv(): programmer is not responding 2014-03-18T21:01:57.920

29 How does the Arduino handle serial buffer overflow? 2014-05-24T16:19:58.203

28 What does it take to compile Linux on Arduino, if at all possible? 2014-02-11T23:44:46.803

27 How can I get a unique ID for all my Arduino boards? 2014-02-17T22:27:42.840

27 Arduino USB Power vs External Power Supply 2014-03-17T17:55:17.447

26 Are global variables evil in Arduino? 2017-07-11T13:07:11.960

25 Project Showcase '14 2014-03-23T03:14:19.210

25 What is Serial.begin(9600)? 2014-05-17T20:48:05.950

25 First time set up- permission denied to usb port- ubuntu 14.04 2016-02-29T07:32:01.090

24 How to compile, upload and monitor via the Linux command line? 2015-09-07T19:13:34.227

24 Warning when verifying sketch with VS code 2017-10-06T08:13:16.437

23 What happens to the Arduino if you don't use a resistor with an LED? 2014-02-14T12:06:10.727

23 What is the real lifetime of EEPROM? 2014-02-15T04:09:14.367

23 ATtiny85: Power consumption vs clock speed 2015-08-05T21:39:22.100

23 Why use an int variable for a pin when const int, enum or #define makes much more sense 2015-08-14T07:22:30.677