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rubano
April 3rd, 2014, 01:17 AM
I have an old machine wrapping electronic cards using programs written on a paper tape, I want to acquire the data from the tape drive perforated with Arduino Uno translate ASCII, then stored in a file on pc directly control the machine with this pc without using perforated strips. I have already started to connect the card reader via the DB25 connector strip with Arduino Uno but I'm stuck in the part of the program concerning the synchronization pulses generated by "sprocket holes".

Do you have any idea on the signal generated by SPKT "sprocket holes"? ie does the data change or not at the time of activation SPKT signal or not?
My tape drive has a reference Eeco.
18109

DaveH
April 27th, 2014, 12:22 PM
Hi, the sprocket hole is smaller and in the center of the data holes so you can latch the data at the leading edge of the sprocket hole, thats what the tape reader on my PDP8 does.
Cheers
Dave