Re: missed keystrokes problem, back with a vengeance.

On Wednesday 01 February 2017 23:06:51 Jerry Stuckle wrote: > On 1/29/2017 1:48 PM, Gene Heskett wrote: > > Alan, ALL of the motor drivers are switchmode, with the current > > regulation running at or above 20 KHz. And these noise spikes are > > ringing at nominally 100 MHz. I have managed to get

Re: missed keystrokes problem, back with a vengeance.

On 1/29/2017 1:48 PM, Gene Heskett wrote: > > Alan, ALL of the motor drivers are switchmode, with the current > regulation running at or above 20 KHz. And these noise spikes are > ringing at nominally 100 MHz. I have managed to get the xy motor noise > under control by takeing out the

Re: missed keystrokes problem, back with a vengeance.

On Wednesday 01 February 2017 17:41:00 Luke Kenneth Casson Leighton wrote: > On Sun, Jan 29, 2017 at 6:48 PM, Gene Heskett wrote: > > On Sunday 29 January 2017 12:40:21 Alan Corey wrote: > > > > Alan, ALL of the motor drivers are switchmode, with the current > >

Re: missed keystrokes problem, back with a vengeance.

On Sun, Jan 29, 2017 at 6:48 PM, Gene Heskett wrote: > On Sunday 29 January 2017 12:40:21 Alan Corey wrote: > Alan, ALL of the motor drivers are switchmode, with the current > regulation running at or above 20 KHz. And these noise spikes are > ringing at nominally 100 MHz.

Re: missed keystrokes problem, back with a vengeance.

On Monday 30 January 2017 22:46:07 Christopher Barry wrote: > On Sun, 29 Jan 2017 12:47:34 -0500 > > Gene Heskett wrote: > >On Sunday 29 January 2017 11:58:57 Paul Wise wrote: > >> On Sun, Jan 29, 2017 at 9:47 PM, Gene Heskett wrote: > >> > However, I have now had 5

Re: missed keystrokes problem, back with a vengeance.

On 30/01/17 23:00, Alan Corey wrote: Biscuit tin or similar would do, ocuple of large ferrite cores and wind the usb cables toroidally? One question I've had for years about using big toroids for suppression is this: If you've got a cord that you don't want to take the connector off to fit

Re: missed keystrokes problem, back with a vengeance.

On Sun, 29 Jan 2017 12:47:34 -0500 Gene Heskett wrote: >On Sunday 29 January 2017 11:58:57 Paul Wise wrote: > >> On Sun, Jan 29, 2017 at 9:47 PM, Gene Heskett wrote: >> > However, I have now had 5 different keyboards plugged into it, some >> > wired, some wireless, and

Re: missed keystrokes problem, back with a vengeance.

> Biscuit tin or similar would do, ocuple of large ferrite cores and wind the > usb cables toroidally? > I was thinking that as someone with a lathe he must know some metal dealers around. I found a nice 2x4 foot piece of 1/8" aluminum at my local dump. Can't bring myself to cut into it. But

Re: missed keystrokes problem, back with a vengeance.

On Monday 30 January 2017 10:52:39 Alan Corey wrote: > There's electrostatic shielding and electromagnetic shielding, I'm not > sure which is which type. A radio signal has both components, the > electrostatic doesn't carry far. A shielded loop antenna is mostly > electrostaticly shielded and

Re: missed keystrokes problem, back with a vengeance.

On Sun, Jan 29, 2017 at 05:59:17PM -0500, Gene Heskett wrote: > On Sunday 29 January 2017 13:56:53 Tzafrir Cohen wrote: > > > On Sun, Jan 29, 2017 at 12:47:34PM -0500, Gene Heskett wrote: > > > On Sunday 29 January 2017 11:58:57 Paul Wise wrote: > > > > USB protocol: use wireshark to see if the

Re: missed keystrokes problem, back with a vengeance.

There's electrostatic shielding and electromagnetic shielding, I'm not sure which is which type. A radio signal has both components, the electrostatic doesn't carry far. A shielded loop antenna is mostly electrostaticly shielded and made from shielded wire (coax) wire but a good receiving

Re: missed keystrokes problem, back with a vengeance.

On Monday 30 January 2017 09:48:10 Lennart Sorensen wrote: > On Sun, Jan 29, 2017 at 01:48:50PM -0500, Gene Heskett wrote: > > Alan, ALL of the motor drivers are switchmode, with the current > > regulation running at or above 20 KHz. And these noise spikes are > > ringing at nominally 100 MHz. I

Re: missed keystrokes problem, back with a vengeance.

On Sun, Jan 29, 2017 at 01:48:50PM -0500, Gene Heskett wrote: > Alan, ALL of the motor drivers are switchmode, with the current > regulation running at or above 20 KHz. And these noise spikes are > ringing at nominally 100 MHz. I have managed to get the xy motor noise > under control by takeing

Re: missed keystrokes problem, back with a vengeance.

On Monday 30 January 2017 04:51:59 Jonathan Wilson wrote: > On Sun, 2017-01-29 at 13:10 -0500, Gene Heskett wrote: > > On Sunday 29 January 2017 12:16:52 Jonathan Wilson wrote: > > > On Sun, 2017-01-29 at 08:47 -0500, Gene Heskett wrote: > > > > Greetings everybody; > > > > > > > > I am in the

Re: missed keystrokes problem, back with a vengeance.

On Sun, 2017-01-29 at 13:10 -0500, Gene Heskett wrote: > On Sunday 29 January 2017 12:16:52 Jonathan Wilson wrote: > > > On Sun, 2017-01-29 at 08:47 -0500, Gene Heskett wrote: > > > Greetings everybody; > > > > > > I am in the process of bringing a nearly 70 yo Sheldon lathe back to > > > life,

Re: missed keystrokes problem, back with a vengeance.

On Sunday 29 January 2017 13:56:53 Tzafrir Cohen wrote: > On Sun, Jan 29, 2017 at 12:47:34PM -0500, Gene Heskett wrote: > > On Sunday 29 January 2017 11:58:57 Paul Wise wrote: > > > USB protocol: use wireshark to see if the keyboard event packets > > > are reaching the device. > > > > I'll have

Re:[SOLVED]missed keystrokes problem, back with a vengeance.

On Sunday 29 January 2017 13:56:53 Tzafrir Cohen wrote: > On Sun, Jan 29, 2017 at 12:47:34PM -0500, Gene Heskett wrote: > > On Sunday 29 January 2017 11:58:57 Paul Wise wrote: > > > USB protocol: use wireshark to see if the keyboard event packets > > > are reaching the device. > > > > I'll have

Re: missed keystrokes problem, back with a vengeance.

On Sun, Jan 29, 2017 at 12:47:34PM -0500, Gene Heskett wrote: > On Sunday 29 January 2017 11:58:57 Paul Wise wrote: > > USB protocol: use wireshark to see if the keyboard event packets are > > reaching the device. > > I'll have to install these tools. And I'll report what I find. I was > not

Re: missed keystrokes problem, back with a vengeance.

On Sunday 29 January 2017 12:16:52 Jonathan Wilson wrote: > On Sun, 2017-01-29 at 08:47 -0500, Gene Heskett wrote: > > Greetings everybody; > > > > I am in the process of bringing a nearly 70 yo Sheldon lathe back to > > life, useing an raspberry-pi 3b for the machine controller. > > > > However,

Re: missed keystrokes problem, back with a vengeance.

On Sun, 2017-01-29 at 08:47 -0500, Gene Heskett wrote: > Greetings everybody; > > I am in the process of bringing a nearly 70 yo Sheldon lathe back to > life, useing an raspberry-pi 3b for the machine controller. > > However, I have now had 5 different keyboards plugged into it, some > wired,

Re: missed keystrokes problem, back with a vengeance.

On Sun, Jan 29, 2017 at 9:47 PM, Gene Heskett wrote: > However, I have now had 5 different keyboards plugged into it, some > wired, some wireless, and none of them can give me a dependable response > to a key, and the error seems much worse for the key-up event. Check the different layers of the

Re: missed keystrokes problem, back with a vengeance.

On 29/01/17 14:00, Gene Heskett wrote: Greetings everybody; I am in the process of bringing a nearly 70 yo Sheldon lathe back to life, useing an raspberry-pi 3b for the machine controller. However, I have now had 5 different keyboards plugged into it, some wired, some wireless, and none of

missed keystrokes problem, back with a vengeance.

Greetings everybody; I am in the process of bringing a nearly 70 yo Sheldon lathe back to life, useing an raspberry-pi 3b for the machine controller. However, I have now had 5 different keyboards plugged into it, some wired, some wireless, and none of them can give me a dependable response to