Re: Two dead LK201 keyboards

2019-12-28 Thread Ethan Dicks via cctalk
On Sat, Dec 28, 2019 at 5:39 AM Pete Turnbull via cctalk wrote: > Those old adapters are definitely just passive wiring, and were commonly > supplied with dual-standard mice. That's why they're green. I have green ones for mice, and purple ones for keyboards (same signals on USB side, different

Re: Two dead LK201 keyboards

2019-12-28 Thread Paul Koning via cctalk
> On Dec 28, 2019, at 5:25 AM, Pete Turnbull via cctalk > wrote: > > On 28/12/2019 01:46, Paul Koning via cctalk wrote: > >> I can get one and test it with an Apple keyboard, but that doesn't sound >> right. There aren't enough wires on a USB connector to allow you to speak >> the PS/2

Re: Two dead LK201 keyboards

2019-12-28 Thread Pete Turnbull via cctalk
On 28/12/2019 01:46, Paul Koning via cctalk wrote: I can get one and test it with an Apple keyboard, but that doesn't sound right. There aren't enough wires on a USB connector to allow you to speak the PS/2 protocol. And there are PS/2 to USB adapters (for old keyboards) that are the same

Re: Two dead LK201 keyboards

2019-12-27 Thread Glen Slick via cctalk
> There aren't enough wires on a USB connector to allow you to speak the PS/2 > protocol. How many wires are necessary to speak the PS/2 protocol? How many pins are there on a USB connector? In front of me right now I have a Microsoft IntelliMouse Explorer USB and PS/2 Compatible mouse, and a

Re: Two dead LK201 keyboards

2019-12-27 Thread Paul Koning via cctalk
> On Dec 27, 2019, at 3:10 PM, Glen Slick via cctalk > wrote: > >>> Supplies of good non-USB PC keyboards are probably beginning to get harder >>> to find now too... >> >> True. It could use either kind of keyboard. Also, USB to mini-DIN adapters >> are still sold ($5 in the current

Re: Two dead LK201 keyboards

2019-12-27 Thread Glen Slick via cctalk
> > Supplies of good non-USB PC keyboards are probably beginning to get harder > > to find now too... > > True. It could use either kind of keyboard. Also, USB to mini-DIN adapters > are still sold ($5 in the current L-Com catalog). That seems like a cheaper > solution than a USB Host shield.

Re: Two dead LK201 keyboards

2019-12-27 Thread Paul Koning via cctalk
> On Dec 27, 2019, at 1:46 PM, Peter Coghlan via cctalk > wrote: > > Paul Koning wrote: >> ... >> I'm considering building a PC keyboard LK201 emulation, should be a fairly >> simple bit of Arduino code. > > Supplies of good non-USB PC keyboards are probably beginning to get harder > to

Re: Two dead LK201 keyboards

2019-12-27 Thread Peter Coghlan via cctalk
Paul Koning wrote: > > Gentlepeople, > > I'm doing some work with my Pro 380 over the holidays, but have run into a > snag because both my LK201 keyboards are dead. They fail poweron self test > -- LEDs stay on and no response to any keypresses. > > The odd thing is that the circuit board