Custom volume/media macro mini keyboard

[Noogie]

I know this has been asked but I'm having trouble finding something really solid I can follow. I want to build an 8 key macro pad. I was thinking using a Pro Micro as the controller, but I'm not entirely sure how to wire it or code it. Please help!! Could I just solder all the switches straight to the Pro Micro making coding it easy? Thanks!

[tris0908]

I'd suggest wiring it as a matrix, with diodes. Then using the qmk firmware builder. This adds work in soldering, but takes the pain out of coding.

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[TalkingTree]

I want to build an 8 key macro pad. I was thinking using a Pro Micro as the controller, but I'm not entirely sure how to wire it or code it.

Please have a look at this thread.

[Noogie]

Then using the qmk firmware builder.

That sounds quite nice and easy. If I make, for example, a 2x4 matrix how do I code it with QMK. As well, can I use a Pro Micro as opposed to a teensy for cost saving?

[tris0908]

First go to keyboard layout editor to "model" your layout/matrix. Then copy the raw data from KLE to qmk firmware builder (kbfirmware.com) and paste the raw data. Then play with the keymap and stuff. You can use a pro micro as it is cheaper. Tho harder to flash.

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[TalkingTree]

If I make, for example, a 2x4 matrix how do I code it with QMK.

QMK handles the matrix on its own, so you only have to declare what pins are rows and what are columns. After that, you only have to define keymaps and keycodes. Start the hardware work then post here when you're done, I'll help you through.

can I use a Pro Micro as opposed to a teensy for cost saving?

Definitely, if you can live with the USB micro.

[Phenix]

Buy a maximal pcb