# 2022-09-14 Keyboard This board holds 99 keys total, spread out across a qwerty layout (64 keys), a "function key" row (14 keys), and a combined numeric/navigation block (21 keys). Keyboard board, frontKeyboard board, back Sidebar: Oh yeah, this...
The keyboard is the heart of this project, it's designed to be compact, one handed and use muscle memory to allow it to be learned quickly. It's based off of 2 ideas: Half qwerty and butter stick. Half qwerty works by mirroring the keyboard...
Only 64 KeysTo start I have assumed only 64 keys (maximum) are available for the keyboard. The first key is mapped as code as 0, the last key as code 63. Here is my keyboard switch schematic with the final key mappings (n.b. keys 04, 05 and 06 will not...
Lots of people have asked me where I got the portrait layout keyboard. Here's the current situation:There is no consistently produced version of the RF mini keyboard. I spoke to iPassport and they just make a batch when someone meet their MOQ. See: http://www.chinaimportal.com/blog/minimum-order-quantity-moq-why-it-s-required-by-chinese-suppliers/The...
I already learnt a lot of things about keyboards with my previous laptop project (in particular matrices) reusing a old Dell mini keyboard. But I wanted more, and those mechanical keyboards seems very nice. So I decided to give a try. I really love STM32...
So, like I stated in my last post, I went to get 50 1n4148 diodes - 3.00€. I already feel bad for not taking more of them. I am going to use most of them for my keyboard matrix of 30 buttons, which will be the input of my computer (it probably...
Since this is a scrap part build, I'm using knockoff cherry mx browns from an old mechanical keyboard I picked up years ago and stopped using due to going to ortho layout and wanting something loud. The 5 way switch was ordered off of amazon:https://www.amazon.com/dp/B00E6QM2F0?psc=1&ref=ppx_yo2ov_dt_b_product_detailsand...
I was reading John Elliott's keyboard protocol information, and noticed that he says that he didn't know the exact timing for the keyboard. So I thought I'd find out, and connected a PCW keyboard up to my logic analyzer.I was interested to find...
First thing I had to do was get as much space as possible, so to that end, I built a hand-wired keyboard with a raspberry pi pico as the micro controller. I used this blog post as a guide. Everything went fairly smoothly. The biggest hurdle was that...
One wire technologie and negative serial data. The advanced UARTs on the Teensy 4 can do this job for us that used to require a lot of discrete components. The Coleco ADAM peripherals are connected via a shared bus AdamNet.This bus is described in the...
The trick with this is some keyboard shortcuts should stay the browser defaults, some shouldn't, & some can't override the defaults at all. Only experience can tell. There's no way to override ctrl-n. There are a lot of corner cases....
My Fubata MD-4PCS key switches finally arrived! Time to get the keyboard put together. The first step was to add the 85 IN4148 diodes. To save some time I printed a diode lead bender from Thingiverse. I was super careful to double and...
The keyboard is working, and it is working well.OK there were a few gotchas like a diode that was soldered in reverse and a chip with the GND pin connected to VCC but these were quite easy to spot.The Schmitt trigger has been refined and I'm satisfied...
The main unit is pretty much complete aside from a plastic cover for the electronics and legs to hold it up. The second part of the project is the remote keyboard. It is a small, 15-key keyboard that communicates via IR with the main unit. When a key...
The initial prototype used f and j for the up and down motion of the right pointer finger. This was simple done as f and j are the first letters in the typing trainer that I use. The layout of the keys will be important. No firm plans have been made,...