Hi there.
I'd like make my diecimila write packets over a parallel cable to a device on the other end. It only needs to write packets, not read anything.
Any thoughts on to how to set up the hardware to do this?
Thanks in advance!
I think you need to be a little more specific about your project and the device you want to communicate with.
Is it a device that would normally be controlled via a parallel port on a computer ?
What kind of "packets" do you need to send ?
If its a device that would normally communicate with a computer over a parallel (printer) port you need to know how it communicates. A computer parralel port has 8 datalines (output only) and a handfull of control lines some of which can be bidirectional. You need to know how the device uses these lines.
These links might be helpful: Parallel Port information links.
--Phil.
Is it a device that would normally be controlled via a parallel port on a computer ?
What kind of "packets" do you need to send ?
If its a device that would normally communicate with a computer over a parallel (printer) port you need to know how it communicates. A computer parralel port has 8 datalines (output only) and a handfull of control lines some of which can be bidirectional. You need to know how the device uses these lines.
So I have a remote control toy that I've modified based on things people have posted on the web. Instead of receiving commands via the remote control it is now able to receive commands over a parallel cable.
The toy accepts data on pin 2 of the parallel cable. All I need to do is modulate it for different time periods to send some data, which I've already written a sketch for. (I have a protocol already).
Mostly I'm just curious where to hook up the wires on the Diecimila :). Do I just use any digital pin + the ground?
yes