Have a question on Arduino? Ask our expert Simon Monk

thanks for your help it's ver usefull.Now how can i upgrade the .hex files to my arduino? im using windows so i downloaded flip program am i gonna use that? and another problems comin when i upgrade the keyboard hex file to my arduino  how can i turn it back,i need a original arduino hex file ?

@josh - as far as getting the hex file onto your 16u2 goes, I believe, if you are a Windows user, you can program it using AVR Studio. I assume you have the C source as well? How are you compiling?

Alternatively, have a look at AVRDude: http://www.ladyada.net/learn/avr/avrdude.html

Thanks for your reply.I have ARDUINO UNO and an ATMEGA328(without boot loaded) IC.I need some reference for making it to be boot loaded or to program the arduino code into the ATMEGA 328 IC

@jagadeshwaran

http://arduino.cc/en/Hacking/Bootloader?from=Main.Bootloader

About Arduino IDE

I am using:

Ubuntu with Arduino IDE 1.0.1.

I have an Arduino ethernet board.

Loading the "webserver" sketch and compiling I get a couple failures:

Quote

/usr/share/arduino/libraries/Ethernet/Ethernet.cpp: In member function ‘void EthernetClass::begin(uint8_t*, IPAddress, IPAddress, IPAddress, IPAddress)’:

/usr/share/arduino/libraries/Ethernet/Ethernet.cpp:64: fout: no matching function for call to ‘W5100Class::setIPAddress(IPAddress::<anonymous union>&)’

/usr/share/arduino/libraries/Ethernet/utility/w5100.h:392: note: kandidaten zijn: void W5100Class::setIPAddress(uint8_t*)

/usr/share/arduino/libraries/Ethernet/Ethernet.cpp:65: fout: no matching function for call to ‘W5100Class::setGatewayIp(IPAddress::<anonymous union>&)’

/usr/share/arduino/libraries/Ethernet/utility/w5100.h:368: note: kandidaten zijn: void W5100Class::setGatewayIp(uint8_t*)

/usr/share/arduino/libraries/Ethernet/Ethernet.cpp:66: fout: no matching function for call to ‘W5100Class::setSubnetMask(IPAddress::<anonymous union>&)’

/usr/share/arduino/libraries/Ethernet/utility/w5100.h:376: note: kandidaten zijn: void W5100Class::setSubnetMask(uint8_t*)

quote

What is gone wrong. I have not make changes to the sketch. I just install that IDE including all other files.

The same problem with other ethernet sketches.

Thanks for your time.

Happy sunday.

Hi,

My first thought was that there is an old version of the Ethernet library. But you say this is a fresh install.

I am not a Linux user, so I don't know if any other Linux people out there can shed any light on it.

Could it be a relative path type thing? Do you start Arduino IDE from the command line?

Sorry not to be of more help.

Simon could be right if the W5100class references are external to

the source file: /usr/share/arduino/libraries/Ethernet/Ethernet.cpp

This would be the case if the file pointed to by a  #include is missing or misplaced or misnamed.

The other possiblility is a typo has somehow been put into the file: /usr/share/arduino/libraries/Ethernet/Ethernet.cpp and the W5100class functions are present (inside the Ethernet.cpp) but cannot be found due to the presumed typo.

If that is the case; you should try to fix the punctuation and/or spelling to effect the correction.

Have you read/searched over at http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1290209328/all?

Hope this helps you.

lets say i have a wild picture in my harddrive,  how do i use arduino to get to file, and print words on the picture, and save it elsewhere?

@ang. This isn't really a task for an Arduino. It does not have nearly enough memory to store a whole image and manipulate it like that.

I would not be surprised to find some PC application that would do what you want.

I dont understand the concept of booleans and how to use them.and also can you explain to me how to use a 7 segment display??