So, looking at eBay, I
see things around $5-8 shipped, that have (according to description) an Atmel Atmega32u4 microcontroller ... This is the thing that makes the Teensy so valuable, right?
But close examination of the board shows they've attached it differently; the pins have different meanings to the microcontroller.
Lets say (hypothetically
) I bought one of these things ... how hard is it to make a keyboard out of them?
just software re-writes, or since they seem to move the ground around would I for-sure need a cross wired standoff to match the Teensy's layout (assuming an off-the-shelf PCB like a phantom or something)
If the test subject were to then cross wire it to where the PCB honestly thought it was a Teensy, would existing firmware work? Funky case options at that point, I can only guess but it would save $10 on the project.
For someone who's never written a device driver in his ilfe (and didn't get too far through 'C for dummies' either) is there a decent tutorial, or has someone collected together other people's tutorials to take a project from "you have a breakout knockoff in your hands" through to "you have a keyboard you're using to post to the internet with" ...?