Search found 310 matches

by Anakey
26 Sep 2019, 22:57
Forum: Keyboards
Topic: Key Communications Keyboard Coating On Traces Coming Off Help
Replies: 111
Views: 6842

Re: Key Communications keyboard Matrix Mapped need help with controller programming.

you will generate the .hex file from the kbfirmware.com website but you need info on what controller you will use as well as what pin on the controller corresponds woith what row/column.
by Anakey
26 Sep 2019, 22:23
Forum: Keyboards
Topic: Key Communications Keyboard Coating On Traces Coming Off Help
Replies: 111
Views: 6842

Re: Key Communications keyboard Matrix Mapped need help with controller programming.

you just need the controller. i mean you can make the .hex file without as long as you solder the controller the same pins as in the hex file
by Anakey
26 Sep 2019, 21:39
Forum: Keyboards
Topic: Key Communications Keyboard Coating On Traces Coming Off Help
Replies: 111
Views: 6842

Re: Key Communications keyboard Matrix Mapped need help with controller programming.

The problem limiting you is going to be the pins available to use. The sorers converter that you speak of basically just converted the protocol xt to usb rather then directly hooking into the matrix. you will need one pin per row and 1 pin per column if the pro micro supports enough pins then you ca...
by Anakey
26 Sep 2019, 18:34
Forum: Keyboards
Topic: Key Communications Keyboard Coating On Traces Coming Off Help
Replies: 111
Views: 6842

Re: Key Communications keyboard Matrix Mapped need help with controller programming.

looks fine, anything goes as long as you are happy with it
by Anakey
26 Sep 2019, 16:59
Forum: Keyboards
Topic: Key Communications Keyboard Coating On Traces Coming Off Help
Replies: 111
Views: 6842

Re: Key Communications keyboard Matrix Mapped need help with controller programming.

Yes that looks very good. Last thing you would need to do is to make a kle of the layout that you want and also if you want any layers.
by Anakey
26 Sep 2019, 16:47
Forum: Keyboards
Topic: Key Communications Keyboard Coating On Traces Coming Off Help
Replies: 111
Views: 6842

Re: Key Communications keyboard Matrix Mapped need help with controller programming.

A drawing of the matrix will indeed help as you can then use it to refer to when you create the matrix in the website. Thank you for your insight Muirium, the reason why i suggest the website kbfirmware.com as it makes it easier ,at least for me, especially when the matrices are different from each ...
by Anakey
26 Sep 2019, 14:21
Forum: Keyboards
Topic: Key Communications Keyboard Coating On Traces Coming Off Help
Replies: 111
Views: 6842

Re: Key Communications keyboard Matrix Mapped need help with controller programming.

The easy part is indeed soldering the rows and columns to the Teensy pins yes, but in order to create the .hex file needed to flash the teensy you will need to construct both a physical matrix (physical layout of the switches on the board) and the electrical matrix (layout of connected switches). Th...
by Anakey
26 Sep 2019, 11:12
Forum: Keyboards
Topic: Key Communications Keyboard Coating On Traces Coming Off Help
Replies: 111
Views: 6842

Re: Key Communications keyboard Matrix Mapped need help with controller programming.

No charge for the Teensy, though you can help me in other ways. I am going to be making a presentation on converting vintage boards for the meetup happening in Leeds next month. I would appreciate using some of the photos and also asking if I have explained things correctly so that my presentation w...
by Anakey
26 Sep 2019, 10:33
Forum: Keyboards
Topic: Key Communications Keyboard Coating On Traces Coming Off Help
Replies: 111
Views: 6842

Re: Key Communications keyboard Matrix Mapped need help with controller programming.

Well done, it would be easier to now arrange the table by the order of the keys on the board and also convert the pin numbers to correspond to the physical row/column numbers starting from 0 e.g. Columns 0, 1, 2 etc so that Esc = Column 0, Row 0, F1 = Row 0, Column 1 etc. Before getting the conversi...
by Anakey
24 Sep 2019, 23:44
Forum: Keyboards
Topic: Key Communications Keyboard Coating On Traces Coming Off Help
Replies: 111
Views: 6842

Re: Key Communications keyboard Matrix help.

ok sorry if you know how a diode works but i am going to repeat it anyway. The diode is like a one way system, it allows current to flow in one direction only from + to -ve. Assuming you placed the probes of the multimeter in the correct polarity e.g. the -ve probe was soldered to position 2 and you...
by Anakey
24 Sep 2019, 11:06
Forum: Keyboards
Topic: Key Communications Keyboard Coating On Traces Coming Off Help
Replies: 111
Views: 6842

Re: Key Communications keyboard Matrix help.

if you have established that the far right is for the rows, then the other 2 with traces going down will be for the columns so it is those pins that you would need to probe with the other end on side 1 of the diode
by Anakey
24 Sep 2019, 10:21
Forum: Keyboards
Topic: Key Communications Keyboard Coating On Traces Coming Off Help
Replies: 111
Views: 6842

Re: Key Communications keyboard Matrix help.

I tried getting the other half of the matrix but found that the other pins just connected to the diode pin below the image below shows what I mean. Sorry if my description is bad I am new to this sort of thing please let me know what I am doing wrong. Thanks.15692695081141968231378354124626.jpg If ...
by Anakey
24 Sep 2019, 08:29
Forum: Keyboards
Topic: Key Communications Keyboard Coating On Traces Coming Off Help
Replies: 111
Views: 6842

Re: Key Communications keyboard Matrix help.

measure with multimeter on continuity between the diode and the switch pin above it. Once you establish the side that is connected to the switch measure the other end of the diode to the shift register the same way as you did the switch pins.
by Anakey
24 Sep 2019, 08:25
Forum: Keyboards
Topic: Could use some help with reverse engineering a typewriter PCB, for use with a Pro Micro and QMK.
Replies: 30
Views: 2876

Re: Could use some help with reverse engineering a typewriter PCB, for use with a Pro Micro and QMK.

the diodes are designed to prevent ghosting see here wiki/Rollover,_blocking_and_ghosting so the matrix can only be scanned in the direction of the diode as its basically a one way system.
by Anakey
23 Sep 2019, 21:57
Forum: Want to trade
Topic: NO LONGER AVAILABLE - Focus 727/747 Blue Alps (1987) open for trade offers
Replies: 17
Views: 4621

Re: Focus 727/747 Blue Alps (1987) open for trade offers

maybe photos of the board itself to judge condition along with a timestamp to prove ownership of the board?
by Anakey
21 Sep 2019, 11:25
Forum: Keyboards
Topic: Could use some help with reverse engineering a typewriter PCB, for use with a Pro Micro and QMK.
Replies: 30
Views: 2876

Re: Could use some help with reverse engineering a typewriter PCB, for use with a Pro Micro and QMK.

There may be traces like that because the pcb is not isolated to just the keyboard matrix. it may need the unnecessary traces to be cut for it to work correctly. You only need to wire upp the pins that correspond to the matrix itself
by Anakey
20 Sep 2019, 23:32
Forum: Keyboards
Topic: Could use some help with reverse engineering a typewriter PCB, for use with a Pro Micro and QMK.
Replies: 30
Views: 2876

Re: Could use some help with reverse engineering a typewriter PCB, for use with a Pro Micro and QMK.

if that controller has enough pins to cover both of the ribbon cables then you are ok. the reason to go with a Teensy++ is just the amount of pins that you have access to. if you are wireing a full sized board then often the matrix would have a greater number of pins that the smaller controller boar...
by Anakey
20 Sep 2019, 13:15
Forum: Keyboards
Topic: Could use some help with reverse engineering a typewriter PCB, for use with a Pro Micro and QMK.
Replies: 30
Views: 2876

Re: Could use some help with reverse engineering a typewriter PCB, for use with a Pro Micro and QMK.

yes this is certainly possible as long as you have the matrix then you can indeed just wire up a teensy instead of the ribbon cables. might be worth confirming the matrix using a multimeter on continuity going between the ribbon cable and the switch pin but other then that you are good to go
by Anakey
20 Sep 2019, 10:27
Forum: Keyboards
Topic: Key Communications Keyboard Coating On Traces Coming Off Help
Replies: 111
Views: 6842

Re: Key Communications keyboard USB converting help.

I would say that socketed chip would be the display program as you can see from the underside of the board and would make sense being removable and easily flashed when upgrading the software. T think before starting to remove chips etc it is best to first establish the pins that are for the matrix. ...
by Anakey
19 Sep 2019, 11:11
Forum: Want to buy
Topic: Small as possible alps pcb/keeb or help with ibm 5140 conversion.
Replies: 8
Views: 1364

Re: Small as possible alps pcb/keeb or help with ibm 5140 conversion.

Would be pretty cool if there was a full case conversion kit available that had a case that fits the top. and was as low profile as possible. I feel like it would be pretty easy to design a case out of layered acrylic/plexiglass sheets if someone is so inclined to design one. I unfortunately lack t...
by Anakey
18 Sep 2019, 00:51
Forum: Keyboards
Topic: WEY Tec Mk06 connector box=>keyboard cable identified
Replies: 5
Views: 1066

Re: WEY Tec Mk06 connector box=>keyboard cable identified

you can try here https://geekhack.org/index.php?topic=64155.0 plus the various connecting threads in the links
by Anakey
16 Sep 2019, 17:04
Forum: Keyboards
Topic: Key Communications Keyboard Coating On Traces Coming Off Help
Replies: 111
Views: 6842

Re: Key Communications Cherry MX Unsaver type keyboard USB converting help.

bit of a long shot but you could try to contact the original manufacturer of the board https://tg3electronics.com/ the logo is the same as that on the pcb, though given the board was made nearly 30 years ago they may not have that information left. There are 2 ground wires, signal ground and chassis...
by Anakey
11 Sep 2019, 11:16
Forum: Workshop
Topic: Help with MCL Micronorth Co Ltd
Replies: 4
Views: 2364

Re: Help with MCL Micronorth Co Ltd

if you have a multimeter that has a continuity setting then all you would need to do is place the probes on the two switch legs at the solder points and then press the switch. If the meter beeps then the switch is working fine. You can do this without desoldering from the pcb.
by Anakey
10 Sep 2019, 15:19
Forum: Workshop
Topic: Help with MCL Micronorth Co Ltd
Replies: 4
Views: 2364

Re: Help with MCL Micronorth Co Ltd

1) If the PS2 to USB converter that you got is not described as being active then it will not be converting the AT protocol to USB therefore that is probably why you are getting no keys registering. 2) If 1 does not work, then it is technically possible to replace the controller IC with a Teensy whi...
by Anakey
07 Sep 2019, 10:59
Forum: Off-topic
Topic: Taking a break
Replies: 24
Views: 6849

Re: Taking a break

I am sorry to see that you are taking a break hopefully it is only temporerally rather then permanent. In many ways i share the same feelings with you, not so much on the selling side (though that might change if my keyboard buying does not stay under control). However i also try and convert every v...
by Anakey
07 Sep 2019, 00:50
Forum: Workshop
Topic: HP 9845 workstation keyboard (ITW Magnetic Valve)
Replies: 4
Views: 1824

Re: HP ITW Magnetic Valve board

There might be some information on http://www.hp9845.net/. Wow thank you for that link, i did try the number before but tried the whole number rather then just the first part looks like the main machine would have been quite a major investment and probably used for many years. I shall drop them a l...
by Anakey
06 Sep 2019, 15:27
Forum: Keyboards
Topic: Model M exact model number help pls
Replies: 2
Views: 819

Re: Model M exact model number help pls

it does indeed look like a uk version, though a few keycaps have been swapped around; `¬ ¦ should be next to 1 on the number row, #~ should be next to enter, \| should be next to left shift and finally as you have already said the y and z keys should be swapped if intended for uk layout. The connect...
by Anakey
06 Sep 2019, 01:02
Forum: Workshop
Topic: HP 9845 workstation keyboard (ITW Magnetic Valve)
Replies: 4
Views: 1824

HP 9845 workstation keyboard (ITW Magnetic Valve)

I first saw this board placed for sale by tentator in his recent sales thread and instantly thought it looked cool, scientific numpad, thick doubleshot keycaps, an Execute key and at an acceptable price, The original listing was unknown switch type, however with some digging through the wiki thanks ...
by Anakey
04 Sep 2019, 22:11
Forum: Off-topic
Topic: Unpopular opinions thread
Replies: 375
Views: 44004

Re: Unpopular opinions thread

well played kbdfr, can not argue as it would not be an 'unpopular' opinion Sure, but opinions, unpopular or otherwise, need to be based on facts. And... Well, would you argue the following are not IBM facts? […] built-in flaws like broken rivets or pulverized foam […] I would say the flaws are due ...

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