deskthority

Haha I understand ;) So TwoHand can also be used as a OneHand if you split it? Yep! On power up it looks for the other hand running as an I2C device, and it always scans both sides of the matrix periodically. Pressing a key on the second half would switch the mapping mode. You can even use two OneH...

Awesome news! :D Well I have 3 keyboards now, two MX blues and one MX red, I could try MX brown ;) So what do you recommend? OneHand or TwoHand? The led thingy sounds cool! The OneHand is a definite conversation starter, the TwoHand is basically a split 40% keyboard, and is much easier to learn. Th...

Cool! So is there any chance that you will build a complete working one(I can't do it myself :( )of course I will pay extra for that :) I2C EEPROM footprint sounds promising! I have a USB OTG already for my phone :) And I don't worry about the battery drain issue :) I was planning on ordering extra...

Cool! So is there any chance that you will build a complete working one(I can't do it myself :( )of course I will pay extra for that :) I2C EEPROM footprint sounds promising! I have a USB OTG already for my phone :) And I don't worry about the battery drain issue :) I was planning on ordering extra...

Cool! So is there any chance that you will build a complete working one(I can't do it myself :( )of course I will pay extra for that :) I2C EEPROM footprint sounds promising! I have a USB OTG already for my phone :) And I don't worry about the battery drain issue :) I was planning on ordering extra...

Will this be a GB in the future? Would be a cool keyboard for my phone! :) I've been busy on other things (like my day job), but I'm about to pull the trigger on a batch of 20 Mk2 PCBs... I've just been sending out the PCBs to people who've asked, but if I need to spend money adding components I ma...

As a English man who has spent the last 16 years living in the USA (I married my American wife in Scotland - and love the country and people), my take would be to accept whatever the people vote for and make the best of it either way. Being an engineer I tend to go with the logical, less risky choic...

I was playing with OpenSCAD to generate some 3D layouts, when I noticed that the bottom 1.5 switches need to be rotated 90deg to be able to use ErgoDox modifier caps! Thankfully I hadn't ordered the PCBs!!!!! http://www.creativephotoeffects.com/pje/3D/Sml1.png http://www.creativephotoeffects.com/pje...

Indeed it would! Does the TwoHand configuration use the LEDs much, Peter? And is a OneHand (v 2.0) smart enough to know when it is in fact a TwoHand, so can adapt its layout at power on? It depends if the TwoHand is two inter-connected OneHand units, with their associated CPUs communicating over I2...

Quick, and maybe silly, question: will it be possible to get the PCBs with the smd components already soldered? I'm really not comfortable with soldering things that small :/ I'll see what I can do. I will borrow the rework station from work and see how quickly I can solder the components. I should...

Here's the 'finished' PCB! ;0) http://www.creativephotoeffects.com/pje/V2TopC.png http://www.creativephotoeffects.com/pje/V2BtmC.png It uses a 10-Way IDC connection to link the two PCBs when used in a TwoHand arrangement. These can be either plugged into a header soldered onto the PCB, or soldered p...

Looks great! Can't wait to hear more and updates on releases of the PCB :) After stating that I had run out of things to change... I'm currently 75% of the way through changing from a SIL to an IDC connection for the cable linking the two units. This allows an off-the-shelf 10-way ribbon cable to b...

Cunning optional 2u thumb switches now I see. You good for stabs? I have PCB mount stabilizers, but not plate mount... From my rough experiments, I feel 1.5 high keys would be better for the additional thumb keys, and remove the need for a stabilizer as you would be pressing down on the stem locati...

I'm running out of things to change... http://www.creativephotoeffects.com/pje/V2TopB.png Other than a couple of corrections, the main things that have changed on this version are: Addition of an extra DIO grove connector. Moving the Red LED to share the Teensy LED pin, to free up a pin for the abov...

Thanks Peter. I've had my OneHand sitting idle for a bit, the firmware is its magic, of course. Hope you have a good diagram of your layout! Check your inbox... Alps / Matias switches are nice but the caps situation is very poor, for now. MX is much easier for us to handle until Matias opens up som...

I might be interested in one or two, depending on price. In the past I've just sent PCBs to anyone who's interested... Unless demand becomes too high. Trying to sort out payment has always been an issue, and set expectations too high ;) It's likely to be a month or so before I get the PCBs back, an...

I'm always into this project. Keen to see what you manage in software, as well. Speaking of which: got a link to the latest firmware for OneHand v.1? Hi Mu, I'm just 'tidying' the PCB - my track OCD kicked in ;) Once I've stopped messing with the PCB I was going to sort out my OneHand and TwoHand c...

Hi All, I needed something mindless after another interesting week at work, so I spent some time on the V2 OneHand PCB (Sorry Mu - I was going to learn Kicad, but got distracted!). Here's the top and bottom of the current V2 design. http://www.creativephotoeffects.com/pje/V2Top.png http://www.creati...

GSimon wrote:Any more PCBS available for this very cool board?

I'll look when I get back from work. I don't think I have any.

I am looking to order some gen 2 boards soon which use a matrix rather than individual keys. This allows two keyboards to be scanned by a single CPU.

How is this done in kicad? I'm not sure in kicad... I use a different package. In Easy-PC you add a copper pour shape and associate it to a net such as GND then invoke a fill of the shape. You need to redo the fill if you make changes so I fill it at the end, making a few edits to get as complete a...

Do you have sufficient spare pins? You would connect all the Gnd connections together, and then back to the Gnd pin on the Teensy. I usually fill the spare space on at least one layer with Gnd, which makes a nice connection point for the LEDs.

LEDs operate via current flowing (typically up to 20mA, although low current LEDs are recommended) through them, and will drop the voltage by around 2V. You therefore need to have a series resistor to control the current flow. Driving the LED can be via switching the supply voltage (Vcc), or the 0V ...

Interesting concept. I looked at combining Solid-Run's CuBox-i unit between the two halves of my TwoHand unit. This would produce a very small computer in keyboard.

I'm not sure if the CuBox-i is open source hardware.

With the current price rise of the eBay ProMicro modules, I don't see any reason not to use a Teensy. You're already saving money on the lower switch count. Personally, I'd ditch the LEDs for this version and look at rotating the overlapping switches 180deg to see if it makes the holes easier to pro...

@scottc: Are there any differences in specs corresponding to the color of the board? Your illustration shows a red board, whereas the ones I've seen are blue. We want the ATmega32U4 5V/16MHz variety, correct? Thanks. Thanks also for your very helpful guide! I can jump in on this... I think the Spar...

A few of the Windows apps I'd struggle to do without are:

Xara Designer Pro. ($)
Interspector - Folding Editor ($) No longer sold!
Faststone Image Viewer. (free)
ShadeBlue Indigo Terminal. ($)
Free42 - HP42S Calculator. (Free)
FileZilla. (Free)

Plus lots of programming stuff!

Very impressive work kile! I'd love to try a wireless version of the OneHand...

I'm still trying to find a space on my PCB to locate the CPU. I might have to increase the size of the board a little.

Hi kile,

Excellent work! Your keyboard is coming along very quickly. How's the wireless data transmission working out? Any data on battery life yet?

I'm still swamped at work, so I've had to pause the V2 work for a week or so. Hopefully I can get back to it this weekend.

Keep up the good work.

Now back to porting a 25,000 line industrial application over to a new graphics platform! Do you use the OneHand for typing code at work? If you do, how long did it take you to get used to it? I'm thinking about making a smaller board (TKL or less) with a custom layout and try to actually do my wor...

We're going surface mount with these PCBs as they advance. That has significant upsides like you mentioned, and Kile's making great use of this potential, too. The only problem is that surface mount soldering is not for the faint hearted. We're moving into pre-assembled kit territory. Which is fine...