So I'm building a couple of custom keyers (http://i.imgur.com/eHos1yi.jpg), but I've run into a problem with the circuitry. I can explain how it's supposed to work as a keyer if need be.
My idea was to use one of the smaller arduinos (nano or micro, I forget which) in one of the keyers while the other simply had a multi-in, single-out ic that would go down the line of keys, thanks to a timer, and send them through RF to the keyer with the microcontroller.
Essentially, one controller sends a hex value to the controller constantly and if there's a 1, it's a keystroke. But what specific circuitry do I need? How do I get the timer to make the MISO to cycle through the keys, what capacitor do I need so the timing is right, what program do I use to simulate this, where do I ground it all?! It's madness.
So yeah, besides hooking up the keys, I'd like to integrate an optic mouse so I don't have to take my hand off of the keyer to move the mouse, but that's just an extra feature. if I can even fit it onto the arduino board.
My idea was to use one of the smaller arduinos (nano or micro, I forget which) in one of the keyers while the other simply had a multi-in, single-out ic that would go down the line of keys, thanks to a timer, and send them through RF to the keyer with the microcontroller.
Essentially, one controller sends a hex value to the controller constantly and if there's a 1, it's a keystroke. But what specific circuitry do I need? How do I get the timer to make the MISO to cycle through the keys, what capacitor do I need so the timing is right, what program do I use to simulate this, where do I ground it all?! It's madness.
So yeah, besides hooking up the keys, I'd like to integrate an optic mouse so I don't have to take my hand off of the keyer to move the mouse, but that's just an extra feature. if I can even fit it onto the arduino board.