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One of the activities I would like to do with the Arduino is to read various memories and dump them over serial. Is there already a utlity that will take the data sent over serial and save it as a purely hex file on the computer?
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Maybe this will help you. http://arduino.cc/forum/index.php?topic=51910.0
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Unfortunately not. That is dumping the internal memory of the Arduino and printing it in the terminal in human readable form. What I am looking for is a serial terminal that will capture the data coming in a serial port and save it as binary. I thought Realterm was going to do it, but the captured output is ASCII representation of Hex.

There must be something out there.
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You can save data with Processing  then copy and past said data into an excel file for analysis. Not sure if this is what your after though.
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What I am looking for is a serial terminal that will capture the data coming in a serial port and save it as binary.

i think the arduino sends bytes when the write method is used. Also a terminal program that can save something as a file will just have the binary in the file, such as sending/receiving a .jpg file.
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Got it. Realterm will do it. I just had the wrong settings.
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