All Questions
17 questions
0
votes
1
answer
113
views
Serialise a struct containing a flexible array
I want to serialise and deserialise a struct containing a flexible array.
I did find a working code but wondering if it is the most elegant and optimum way to do it.
This is my first attempt below ...
- 155
0
votes
1
answer
2k
views
Getting error invalid conversion from 'const char*' to 'const uint8_t*
I have written this sketch, and I am trying to populate the array of wifi hotspots to set the value in html select using javascript dynamically.
#include <Arduino.h>
#include <Hash.h>
#...
- 575
1
vote
1
answer
10k
views
Length of uint8_t* const array
I've an array of type uint8_t* const with 6 items, defined like this
uint8_t* const neighbourSet[] = {PEER1, PEER2, PEER3, PEER4, PEER5, PEER6};
Whereas each element in this array is static uint8_t ...
- 191
0
votes
2
answers
56
views
Error array value after passed to a function
I would like to ask about a weirdness in my program. This is my program:
void setup() {
Serial.begin(9600);
}
void loop() {
workout_Text();
}
void workout_Text() {
int woT_x[] = {1, 4, 8, 12,...
- 139
0
votes
1
answer
9k
views
Why using static volatile for variables and only static for arrays in TWI library?
I want to know why to declare variables with static volatile and arrays with only static in TWI library?
For example;
static uint8_t twi_masterBuffer[TWI_BUFFER_LENGTH];
static volatile uint8_t ...
- 283
0
votes
2
answers
5k
views
Max length of char arrays?
I'm running the following Sketch on my Arduino Uno:
const boolean verbose = true;
void debug(const char *s){
if(verbose){
char buf[8 + sizeof(s)] = "[DEBUG] ";
strcat(buf, s);
...
- 117
0
votes
1
answer
2k
views
Set array to array passed as parameter in constructor
I have a constructor which looks like this:
Preset::Preset(char* presetName, MIDICommand* MIDICommands[])
_presetName = presetName;
_MIDICommands = MIDICommands;
}
_MIDICommnads is declared like ...
- 111
2
votes
0
answers
91
views
Arduino -> Processing conversion: creating mux channels
As the title alludes to, I'm in the process of converting an Arduino sketch to a Processing sketch. So far, mostly pretty straightforward.
I'm running into an issue with creating an array of ints for ...
- 267
0
votes
2
answers
153
views
What is the opposite of this data operation?
If I store in an array a double-value in this format, in which format I should be able to read the same double out?
double myDouble = 12.123456;
byte myArray[] = {0x00, 0x00, 0x00, 0x00};
myArray[0] ...
- 515
3
votes
3
answers
25k
views
How can I concatenate multiple byte Arrays into one Array
I have three byte arrays. I first change their values during runtime and after that I want to combine them into one bigger 4th array.
byte a1[] = { 0x01, 0x00, 0x01 };
byte a2[] = { 0x00, 0x11, 0x01 }...
- 515
1
vote
2
answers
278
views
Push to 2D array (log) but last value pushed is everywhere
I have this simple that is supposed to keep a log for me with a fixed number of entries. When I add to the log the oldest replaced is by the second oldest etc and the new entry added. Except when I ...
- 123
0
votes
1
answer
109
views
Pass custom element of an array from an inherited class to main sketch
I'm building a base class that creates color patterns using FastLed's CRGB structure. I use the base class as inheritance for another more specific class that modifies a vector of colors (Pixels[]) ...
0
votes
1
answer
2k
views
Storing integer into character buffer
I have my Arduino code as below.I am trying to send Serial request and get response for it. I can able to send request mentioned in Setup function and also able to switch cases. Problem i am facing ...
- 467
0
votes
1
answer
4k
views
Arduino: put string through variable in array
I have a problem and I can't fix it.
I'm busy with an java to arduino project.
Java writes a string using writeString();
Arduino reads the serial monitor and put the incoming string into a function.
...
- 103
0
votes
2
answers
8k
views
How do I pass an Int Array into void for a foreach loop?
I know its probably an odd question...but I found a workaround for a foreach loop in C. I have a whole bunch of int arrays that I would like to be able to pass into a void, which has that foreach loop ...
- 147