Questions tagged [faq]
Frequently Asked Questions
7 questions
184
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"avrdude: stk500_getsync(): not in sync: resp=0x00," aka Some Dude Named Avr Won't Let Me Upload My Program
I made an awesome program the other day, and I wanted to upload it to my Arduino. After clicking the upload button, some mean dude named avr came along and stopped me, saying:
avrdude: ...
- 5,302
0
votes
4
answers
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Strange compiler error (Segmentation Fault)
You're getting a compiler error. It happens in strange parts of code that really shouldn't be having a problem. The error looks something like:
C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8....
0
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3
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I have made a Nano send 4 pot values to an Uno please help with code
Happy New Year!
So I have made a Nano send 4 pot values to an Arduino Uno over serial but I have a problem: I don't know how to separate these values. Here's the code:
Master:
int Pot = A0;
...
1
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3
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My Arduino isn't showing up on my computer. What should I do?
You have your spangly new Arduino board, you've installed the software, and you plug it in. Nothing happens. Diagnosing problems may be a little tricky for the beginner, so what hoops should you go ...
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3
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Analog input draws current when Arduino is turned off
I am using a Arduino Pro Micro from SparkFun (similar to Arduino Leonardo, cpu: Atmega 32u4). It has a analog input: A0, which I use to keep track of the battery voltage in my battery powered project (...
- 13
4
votes
2
answers
332
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Why do people complain when I call my functions voids?
I have posted questions about "my void loop" or "my void setup" and people complain that they aren't really voids. But they are! See this example code:
void setup() {
pinMode(13, OUTPUT);
}
void ...
- 38.9k
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1
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Why my ISR is giving impossible values?
I have a very simple ISR:
const uint32_t PATTERN_A = 0xFF00FF00;
const uint32_t PATTERN_B = 0x00FF00FF;
volatile uint32_t count = 0;
volatile uint32_t toggle = PATTERN_A;
// My ISR
void callback(...
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