My Library Is Not Working!

Projects Programming
1

I am trying to make a library which will make my complicated code easier to read and make new programs out of. But when I verify my library, it throws up an error:

exit status 1
request for member 'Listen123' in 'robocar123', which is of non-class type 'Robocar()'

Can anybody help?

I've probably done something really dumb, but for the life of me I can't figure it out.

Robocar.cpp (3.93 KB)

Robocar.h (406 Bytes)

2

Sounds like your sketch has declared something wrong. What does your sketch say? What is the full error message?

This is what I get when I try to include your library in the minimal sketch:

In file included from /Users/john/Documents/Arduino/sketch_sep11b/sketch_sep11b.ino:1:0:
/Users/john/Documents/Arduino/libraries/Robocar/Robocar.h:4:20: fatal error: EasyVR.h: No such file or directory
 #include <EasyVR.h>
                    ^
compilation terminated.
exit status 1
Error compiling for board Arduino/Genuino Mega or Mega 2560.
3

Reedsmout:
class Robocar {
public:
void Setup();
void Listen();

Methods and variables conventionally start with a lowercase letter, types start with an uppercase.

If your "listen" method does what I think it does, I usually call that method "loop()" because arduino programmers are probably familiar with the idea.

It's a good idea to bracket your debugging output with

#ifdef DEBUG
  Serial.println(:my debigging");
#endif

and to #define DEBUG at the top of the .h file.

But as to your bug: the class "Robocar" does not have a method named "Listen123". If you have a variable of type Robocar named robocar123, then you invoke its listen method as robocar123.Listen().

4

Your library compiles fine (only one warning) with this sketch:

#include "Robocar.h"

Robocar robocar123;

void setup() {
  // put your setup code here, to run once:
  robocar123.Setup();
}

void loop() {
  // put your main code here, to run repeatedly:
  robocar123.Listen();
}

The warning is:

/Applications/Arduino 1.6.10.app/Contents/Java/libraries/Servo/src/avr/Servo.cpp:184:39: warning: unused parameter 'timer' [-Wunused-parameter]
 static void finISR(timer16_Sequence_t timer)
                                       ^

If that function is used as an ISR it should have no arguments.

5

Thanks for that everyone, It turns out I solved it with different methods, but thanks for all the help!

6

Reedsmout:
I am trying to make a library which will make my complicated code easier to read and make new programs out of. But when I verify my library, it throws up an error:

exit status 1

request for member 'Listen123' in 'robocar123', which is of non-class type 'Robocar()'




Can anybody help?

I've probably done something really dumb, but for the life of me I can't figure it out.

Nope nothing dumb about it , the compiler message is coded - it means - there is no member named Listen123.
Do "find" for "listen" with "ignore case" option to find the offender.