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Old 06-05-2010, 03:44 PM   #521 (permalink)
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I changed all serialWrite and serialRead for Serial.write and Serial.read but now the problem is "Sketch too big; see Arduino - Troubleshooting for tips on reducing it.".

Binary sketch size: 15494 bytes (of a 14336 byte maximum)

Anyone is having the same problem?


Last edited by daok; 06-05-2010 at 03:58 PM..
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Old 06-05-2010, 04:49 PM   #522 (permalink)
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Quote:
Originally Posted by daok View Post
I changed all serialWrite and serialRead for Serial.write and Serial.read but now the problem is "Sketch too big; see Arduino - Troubleshooting for tips on reducing it.".

Binary sketch size: 15494 bytes (of a 14336 byte maximum)

Anyone is having the same problem?
Do you have Atmega328 chip?
youre out of memory
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Old 06-06-2010, 09:41 AM   #523 (permalink)
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Are you sure you are using OBDuino32K.pde and not the original one?
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Old 06-06-2010, 10:04 AM   #524 (permalink)
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I have an Arduino Duemilanove that has a ATmega168 (the normal one).

Compiled with the latest version (Arduino v0.18)

EDIT: I compiled with my old version of Arduino v0.12 (with Serial.write, serial.read instead of that is in the code) and I had a success to send the code without going over limit.

Thanks, not trying to solder that little chip of the iso... soo freaking small haha

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Old 06-06-2010, 12:13 PM   #525 (permalink)
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1) I have build the whole setup and uploaded the code. When I plug in into the USB I see ISO 14... Failed. So I know that the code work and the LCD can light up.

2) When I try with the car, the LCD doesn't even raise up. I have check the the Multimeter (I am newby) and if I put the probe to the 9v and to its ground I see 0.785 (I have put the Multimeter to 20). When I try to check the 5V of Arduino the number are very small!... seem to be a power problem somewhere...

Edit: I have plug a 9v battery instead of the power of the car and the LCD open but I have a message that it fails. It seems that the problem is between the car and the electronic because 1) not enought power 2) transmission fail.

If anyone have some tips I will be glad to hear.

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Old 06-06-2010, 07:05 PM   #526 (permalink)
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Make sure you have the 12V from the car on the OBD2 plug and that it goes to the Arduino?
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Old 06-07-2010, 09:26 AM   #527 (permalink)
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Quote:
Originally Posted by Magister View Post
Make sure you have the 12V from the car on the OBD2 plug and that it goes to the Arduino?
I have check the pin of the OBD2 and I have all pin like you guys.



If I put a wire direct in the pin of the power and the ground (Pin 1 and 9):



I have 0.7 Volts... I do not get it why it's not the full 9V

It doesn't even open the LCD cause I guess the power is not enough.
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Old 06-07-2010, 10:09 AM   #528 (permalink)
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Pin 1 and 9 are on the RS232 port (DB9 plug, like a COM port), try to take a measure between pin 5 and 16 directly on the OBD2 plug under the dash?
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Old 06-07-2010, 06:20 PM   #529 (permalink)
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I have some measure from the OBD2 plug.

If I take the Multimeter:

pin 7 has 12 volts
pin 14 has 4.73 volts
pin 16 has 0.44 volts
pin 4, 5, 12, 9 = 0 volts

why it's not the pin 16 like you?

I have a CIVIC LX 2003...

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Old 06-07-2010, 08:39 PM   #530 (permalink)
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wow no clue, it's a 2003 so it must be OBD2, did you try a scangauge or an ELM327 interface from someone else?
pin 16 must be 12V, this is very strange...

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