Virtual Wire Problem

Projects Programming
1

I'm kind've new to arduino, i was using an example code off sparkfun but i can't seem to get it to upload.. it keeps giving me an error saying that "____ was not declared in this scope"

Sparkfun's example code

#include <VirtualWire.h>

void setup()
{
    Serial.begin(9600);	  // Debugging only
    Serial.println("setup");

    // Initialise the IO and ISR
    vw_set_ptt_inverted(true); // Required for DR3100
    vw_setup(2000);	 // Bits per sec
        vw_set_tx_pin(3); 
        
        pinMode(8, INPUT);
        pinMode(9, INPUT);
        pinMode(10, INPUT);
        pinMode(11, INPUT);

digitalWrite(8, HIGH);
digitalWrite(9, HIGH);
digitalWrite(10, HIGH);
digitalWrite(11, HIGH);

}

void loop()
{
  char *msg;
  
  if(digitalRead(8) == LOW){
    char *msg = "1";
      digitalWrite(13, true); // Flash a light to show transmitting
    vw_send((uint8_t *)msg, strlen(msg));
    vw_wait_tx(); // Wait until the whole message is gone
    digitalWrite(13, false);}
  if(digitalRead(9) == LOW){
    char *msg = "2";
      digitalWrite(13, true); // Flash a light to show transmitting
    vw_send((uint8_t *)msg, strlen(msg));
    vw_wait_tx(); // Wait until the whole message is gone
    digitalWrite(13, false);}
  if(digitalRead(10) == LOW){
    char *msg = "3";
      digitalWrite(13, true); // Flash a light to show transmitting
    vw_send((uint8_t *)msg, strlen(msg));
    vw_wait_tx(); // Wait until the whole message is gone
    digitalWrite(13, false);}
  if(digitalRead(11) == LOW){
    char *msg = "4";
      digitalWrite(13, true); // Flash a light to show transmitting
    vw_send((uint8_t *)msg, strlen(msg));
    vw_wait_tx(); // Wait until the whole message is gone
    digitalWrite(13, false);}
  }

Error code:

In file included from transmitter.ino:1:
E:\arduino\arduino-1.0.3\libraries\VirtualWire/VirtualWire.h:59: error: variable or field 'vw_set_tx_pin' declared void
E:\arduino\arduino-1.0.3\libraries\VirtualWire/VirtualWire.h:59: error: 'uint8_t' was not declared in this scope
E:\arduino\arduino-1.0.3\libraries\VirtualWire/VirtualWire.h:63: error: variable or field 'vw_set_rx_pin' declared void
E:\arduino\arduino-1.0.3\libraries\VirtualWire/VirtualWire.h:63: error: 'uint8_t' was not declared in this scope
E:\arduino\arduino-1.0.3\libraries\VirtualWire/VirtualWire.h:67: error: variable or field 'vw_set_ptt_pin' declared void
E:\arduino\arduino-1.0.3\libraries\VirtualWire/VirtualWire.h:67: error: 'uint8_t' was not declared in this scope
E:\arduino\arduino-1.0.3\libraries\VirtualWire/VirtualWire.h:71: error: variable or field 'vw_set_ptt_inverted' declared void
E:\arduino\arduino-1.0.3\libraries\VirtualWire/VirtualWire.h:71: error: 'uint8_t' was not declared in this scope
E:\arduino\arduino-1.0.3\libraries\VirtualWire/VirtualWire.h:76: error: variable or field 'vw_setup' declared void
E:\arduino\arduino-1.0.3\libraries\VirtualWire/VirtualWire.h:76: error: 'uint16_t' was not declared in this scope
E:\arduino\arduino-1.0.3\libraries\VirtualWire/VirtualWire.h:90: error: 'uint8_t' does not name a type
E:\arduino\arduino-1.0.3\libraries\VirtualWire/VirtualWire.h:98: error: 'uint8_t' does not name a type
E:\arduino\arduino-1.0.3\libraries\VirtualWire/VirtualWire.h:104: error: 'uint8_t' does not name a type
E:\arduino\arduino-1.0.3\libraries\VirtualWire/VirtualWire.h:107: error: 'uint8_t' does not name a type
E:\arduino\arduino-1.0.3\libraries\VirtualWire/VirtualWire.h:112: error: 'uint8_t' does not name a type
transmitter.ino: In function 'void setup()':
transmitter:10: error: 'vw_set_ptt_inverted' was not declared in this scope
transmitter:11: error: 'vw_setup' was not declared in this scope
transmitter:12: error: 'vw_set_tx_pin' was not declared in this scope
transmitter.ino: In function 'void loop()':
transmitter:33: error: 'vw_send' was not declared in this scope
transmitter:39: error: 'vw_send' was not declared in this scope
transmitter:45: error: 'vw_send' was not declared in this scope
transmitter:51: error: 'vw_send' was not declared in this scope
2

Where did you put/install the virtualwire library?

3

In C:\Users\bobby-PC\Desktop\arduino-1.0.3\libraries

4

That does not look like your sketch folder. It needs to be in the sketch folder under libraries. If there is no libraries folder, make one.

5

i'm pretty sure it's in the right folder because it's the only library folder in there with all the other libraries.. ex: wire, servo, eeprom etc...

6

No, those are core libraries. The virtual wire library is not a core library, so it needs to go in the sketch folder => libraries.

7

the only folders i have are drivers, examples, hardware, java, lib, libraries, reference, and tools... and i went through every single one of them and the only folder that virtualwire would go under would be libraries... but i'm not too sure either...

8

There are two folders, arduino - 1.0.3(program folder) and arduino(sketch folder). The Arduino sketch folder is usually in your "my documents". In that folder should be a "libraries" folder, it goes in there.

9

it put it into this folder C:\Users\bobby-PC\Documents\Arduino\libraries and it still gives me the same problems

10

What happens when you compile one of the virtual wire examples?

11

it put it into this folder C:\Users\bobby-PC\Documents\Arduino\libraries and it still gives me the same problems

So, now you have:
C:\Users\bobby-PC\Documents\Arduino\libraries\it
?

Perhaps you could show what you really have.

Did you restart the IDE after installing/moving the library?

12

I didn't know what HazardsMind was referring to, i thought he was just talking about the libraries in the arduino program folder... i didn't know that there was a Documents\Arduino\libraries folder until me metioned it... but no it still doesn't work. but i decided to just move on to xbee... sorry for the trouble