deskthority

Thank you very much.

@aaron Could you please explain me what is the purpose of these holes? I've seen them in other PCBs too.

Long chip for such a small matrix. But I guess that's just a taste of things to come.

The "chip" in fact will be a 40-pin DIP socket in which I'll place the Teensy 2++. I didn't calculate exactly the dimensions and distances, but from a first look it seems to fit exactly. I've already soldered ...

Hello,

I've designed a small PCB intended for testing purposes. After this first stage is successful, I will escalate the design. Also it's my first attempt using EAGLE, I've never tried to design a PCB before. So I'd like you to take a look and tell me your opinion, if you see any faults and what ...

So the estimation I have in mind is:

Controller: ~60mA max (https://www.pjrc.com/teensy/low_power.html)
Display: ~25-50mA max (http://www.adafruit.com/products/1431 says about 30mA but I put some margin)
Backlight: the rest. How much? I don't know. I'm trying to conclude to a led type (SMD or ...

Hello,

as I mentioned in a previous post of mine (http://deskthority.net/workshop-f7/which-controller-to-use-t9110.html) I'm on my way to make my own keyboard from scratch with some nice stuff onto it (display, USB hub, backlight etc). Now my first few Cherry blues arrived, so the Teensy 2++ which ...

Thank you again guys, you're amazing. I'll give it a shot with the Teensy2.0++ and possibly an extra controller if needed to drive fancy stuff like display. I'll keep you informed about the progress, as I'm waiting for the parts to arrive and I'm preparing for a small-scale initial phase (just a few ...

Thank you very much for your reply. I thought too that this would be the safest choice. But actually I'm pretty stubborn :lol: and I'd like to ask again if there is a good reason for NOT using the Teensy 3.1 or any other 32-bit ARM MCU? I've searched a lot and although I couldn't find a DIY project ...

Hello everybody,

I decided to build my first keyboard from scratch and now I have to decide what kind of controller should I use. The most obvious choice is Teensy 2.0++ however, I like the 3.1 ver which has the ARM M-4 MCU on it. I have a couple of questions:

I want to have a full-sized keyboard ...