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[on:]

Hey, I was trying to programme Attiny85 with mine arduino v3.0, and  when i try to test code or upload it to attiny85 i always get error ""serial" was not declared in the scope". Maybe there is some way to fix this or other way to upload this code into attiny85? Please help. Here is code:

Code:

#include <IRremote.h>

int RECV_PIN = 11;
IRrecv irrecv(RECV_PIN);
decode_results results;

void setup()
{ pinMode(12, OUTPUT);
  pinMode(13, OUTPUT);
  Serial.begin(9600);
  irrecv.enableIRIn();
}

void loop()
{
  if (irrecv.decode(&results)) {                                                                                                                              
    if (results.value==0x086){digitalWrite(12, HIGH); delay(1000);}  
    if (results.value==0x481){digitalWrite(13, HIGH); delay(1000);}  
    if (results.value==0x886){digitalWrite(12, LOW); delay(1000);}  
    if (results.value==0xC81){digitalWrite(13, LOW); delay(1000);}  
    irrecv.resume();                                                                                
  }
}

and error is looks like this :

'Serial' was not declared in the scope

Code:

IRrecvDemo_Bulb.ino: In function 'void setup()':
IRrecvDemo_Bulb:12: error: 'Serial' was not declared in this scope

Moderator edit: [code] [/code] tags added.

[Reply #1 on:]

The ATtiny85 does't have a hardware serial port so the 'core' doesn't include the Serial object.  Since you don't seem to be using the Serial object, just remove "Serial.begin(9600);" from your setup().

[Reply #2 on:]

I did this, and now i get this "error compiling"

Code:

C:\Users\Pukis\Documents\Arduino\libraries\IRremote\IRremote.cpp: In member function 'virtual void IRsend::mark(int)':
C:\Users\Pukis\Documents\Arduino\libraries\IRremote\IRremote.cpp:172: error: 'TCCR2A' was not declared in this scope
C:\Users\Pukis\Documents\Arduino\libraries\IRremote\IRremote.cpp:172: error: 'COM2B1' was not declared in this scope
C:\Users\Pukis\Documents\Arduino\libraries\IRremote\IRremote.cpp: In member function 'virtual void IRsend::space(int)':
C:\Users\Pukis\Documents\Arduino\libraries\IRremote\IRremote.cpp:180: error: 'TCCR2A' was not declared in this scope
C:\Users\Pukis\Documents\Arduino\libraries\IRremote\IRremote.cpp:180: error: 'COM2B1' was not declared in this scope
C:\Users\Pukis\Documents\Arduino\libraries\IRremote\IRremote.cpp: In member function 'void IRsend::enableIROut(int)':
C:\Users\Pukis\Documents\Arduino\libraries\IRremote\IRremote.cpp:198: error: 'TIMSK2' was not declared in this scope
C:\Users\Pukis\Documents\Arduino\libraries\IRremote\IRremote.cpp:198: error: 'TOIE2' was not declared in this scope
C:\Users\Pukis\Documents\Arduino\libraries\IRremote\IRremote.cpp:207: error: 'TCCR2A' was not declared in this scope
C:\Users\Pukis\Documents\Arduino\libraries\IRremote\IRremote.cpp:207: error: 'WGM20' was not declared in this scope
C:\Users\Pukis\Documents\Arduino\libraries\IRremote\IRremote.cpp:208: error: 'TCCR2B' was not declared in this scope
C:\Users\Pukis\Documents\Arduino\libraries\IRremote\IRremote.cpp:208: error: 'WGM22' was not declared in this scope
C:\Users\Pukis\Documents\Arduino\libraries\IRremote\IRremote.cpp:208: error: 'CS20' was not declared in this scope
C:\Users\Pukis\Documents\Arduino\libraries\IRremote\IRremote.cpp:211: error: 'OCR2A' was not declared in this scope
C:\Users\Pukis\Documents\Arduino\libraries\IRremote\IRremote.cpp:212: error: 'OCR2B' was not declared in this scope
C:\Users\Pukis\Documents\Arduino\libraries\IRremote\IRremote.cpp: In member function 'void IRrecv::enableIRIn()':
C:\Users\Pukis\Documents\Arduino\libraries\IRremote\IRremote.cpp:224: error: 'TCCR2A' was not declared in this scope
C:\Users\Pukis\Documents\Arduino\libraries\IRremote\IRremote.cpp:229: error: 'TCCR2B' was not declared in this scope
C:\Users\Pukis\Documents\Arduino\libraries\IRremote\IRremote.cpp:229: error: 'CS22' was not declared in this scope
C:\Users\Pukis\Documents\Arduino\libraries\IRremote\IRremote.cpp:230: error: 'CS21' was not declared in this scope
C:\Users\Pukis\Documents\Arduino\libraries\IRremote\IRremote.cpp:231: error: 'CS20' was not declared in this scope
C:\Users\Pukis\Documents\Arduino\libraries\IRremote\IRremote.cpp:234: error: 'TIMSK2' was not declared in this scope
C:\Users\Pukis\Documents\Arduino\libraries\IRremote\IRremote.cpp:234: error: 'TOIE2' was not declared in this scope
C:\Users\Pukis\Documents\Arduino\libraries\IRremote\IRremote.cpp:236: error: 'TCNT2' was not declared in this scope
C:\Users\Pukis\Documents\Arduino\libraries\IRremote\IRremote.cpp: In function 'void TIMER2_OVF_vect()':
C:\Users\Pukis\Documents\Arduino\libraries\IRremote\IRremote.cpp:266: error: 'TCNT2' was not declared in this scope

Moderator edit: [code] [/code] tags added.

[Reply #3 on:]

The IRremote remote library uses timer 2.  The ATtiny85 processor does not have a timer 2.  I have no idea if there is an alternative library.

[Reply #4 on:]

Than maybe there is other kind of microcontroller that would support these libraries and i could upload programm to it with arduino?

[Reply #5 on:]

The ATtiny85 is quite capable of being used in an IR remote controller - I've just built a remote using an ATtiny45. It doesn't have timer 2, but it has timers 0 (8-bit) and 1 (16-bit). I used timer 1 to generate the 38kHz signal in my design.

[Reply #6 on:]

maybe there is some tutorial how to set my attiny85 to work with timer 1?

[Reply #7 on:]

If it were me, I'd start by making a copy of the IRremote library and call it IRremoteTiny.  Then change all the references to Timer2 registers to work with Timer1.  That should bring the number of compile errors down to a reasonable number. Debug from there.

[Reply #8 on:]

I am new in programming and I don't really know how to change TIMERs in library, i have changed TIMSK2 to TIMSK0 and few others but it doesn't make any good. Maybe someone has IRremote library modified to work with attiny? :/

[Reply #9 on:]

Maybe this one :

http://blog.tkjelectronics.dk/2012/03/attinyremote/

[Reply #10 on:]

THX but this didn't help :/