Search found 1458 matches

by dyarker
Thu Jun 07, 2018 9:45 am
Forum: General Discussion
Topic: Why is there no way to contact the Administrator?
Replies: 20
Views: 412

Re: Why is there no way to contact the Administrator?

I've done it before. The readers here will see the images here just like they are stored here, but they are actually stored on your own server or the free host's server. No change in "fun" for your readers. Facebook may (repeat may) not be a good storage choise. Don't you have to join Facebook to lo...
by dyarker
Thu Jun 07, 2018 9:22 am
Forum: General Discussion
Topic: Why is there no way to contact the Administrator?
Replies: 20
Views: 412

Re: Why is there no way to contact the Administrator?

Can someone fix the attachments/pictures quota ??? Not broken. If you uploaded the max, then you uploaded the max. How long can you edit your own posts on this forum? Maybe you can go to some really old posts and delete images that are no longer relevent. Also see my reply in other thread. Cheers,
by dyarker
Thu Jun 07, 2018 9:10 am
Forum: General Discussion
Topic: HEY Dacflyer! GIANT LED DISPLAY!
Replies: 8
Views: 145

Re: HEY Dacflyer! GIANT LED DISPLAY!

home/externet/Desktop is not a URL.

If you have your own domain then you may upload the image to your web server and put the URL on this forum.

Or there are free image hosting sites. Upload the image, they will give you a link to use here.

Cheers,
by dyarker
Wed May 16, 2018 1:25 pm
Forum: General Discussion
Topic: Nicad Battery Charger with NiMH Batteries.............
Replies: 3
Views: 110

Re: Nicad Battery Charger with NiMH Batteries.............

At 400mAH, 50mA trickle would be 10mA over.

The AA size NiMH cells I saw at Digikey were 2300mAH and 1900mAH (2.3AH and 1.9 AH). I thought the 400mA in your first post was the max discharge current, not the Amp Hours rating.
by dyarker
Wed May 16, 2018 4:28 am
Forum: General Discussion
Topic: Nicad Battery Charger with NiMH Batteries.............
Replies: 3
Views: 110

Re: Nicad Battery Charger with NiMH Batteries.............

What is the mAH rating of the cells? (AKA "C")

spec sheets for two manufacturers and Wikipedia say Trickle charge (no delta temp or delta V) at 0.1 times mAH, or less, is safe. (0.1 x C)

If your charger really is limited to 50mA max, it should be okay.

Cheers,
by dyarker
Mon May 14, 2018 8:20 am
Forum: Projects & Kits
Topic: Would this 78SR-5/2-C work as a drop in replacement?
Replies: 3
Views: 156

Re: Would this 78SR-5/2-C work as a drop in replacement?

You mean across the regulated 5V (to ground) before the display? Yes, but zener knee is not very sharpe. 6.xV or 7.xV would probably be better. Check the curves on the data sheets. You want 5.2V to be definately in the cutoff zone of the zener. (higher would defeat the purpose of using it though!) C...
by dyarker
Fri May 11, 2018 7:55 am
Forum: Projects & Kits
Topic: Would this 78SR-5/2-C work as a drop in replacement?
Replies: 3
Views: 156

Re: Would this 78SR-5/2-C work as a drop in replacement?

Replacing one linear regulator with another linear regulator having higher max current rating solves part of the problem. But, heat (power) generated is the voltage drop across the regulator (not the output voltage) times the current. Increasing the current (even if still under max) requires a bigge...
by dyarker
Fri May 04, 2018 8:06 am
Forum: General Discussion
Topic: Typical 0.1 μF bypass capacitor value...
Replies: 4
Views: 139

Re: Typical 0.1 μF bypass capacitor value...

Depends. Replacing a 0.1uF ceramic disk capacitor with a 1.0uf ceramic disk capacitor would be better. But, probably over-kill for not much improvement in performance, more expense, and more PCB space. Replacing a 0.0uF ceramic disk capacitor with a 1.0uF electrolytic capacitor could (repeat could) ...
by dyarker
Thu Mar 22, 2018 9:04 am
Forum: General Discussion
Topic: Security light motion sensors in parallel
Replies: 11
Views: 564

Re: Security light motion sensors in parallel

sorry too! no downloads here (at my end), so haven't seen the diagram.
by dyarker
Thu Mar 22, 2018 7:30 am
Forum: General Discussion
Topic: Security light motion sensors in parallel
Replies: 11
Views: 564

Re: Security light motion sensors in parallel

Didn't say fed from single circuit in post 1.
by dyarker
Thu Mar 22, 2018 3:53 am
Forum: General Discussion
Topic: Security light motion sensors in parallel
Replies: 11
Views: 564

Re: Security light motion sensors in parallel

Do NOT connect the red wires (at least not yourself). They are switched AC hot leads. If AC to the detectors happens to come from different phases you'll at least pop a breaker. Even if you "get lucky" with the phases, one detector being on "bright" could damage the other as sghito said. It is possi...
by dyarker
Wed Feb 14, 2018 9:01 am
Forum: Computer Programming
Topic: web outlook mystery ( AKA Hotmail ? )
Replies: 4
Views: 443

Re: web outlook mystery ( AKA Hotmail ? )

Which is it, Outlook or Hotmail? Or, Outlook checking mail on a Hotmail account? Or2, do you mean Outlook.com, domain name for HotMail? Outlook is an e-mail client program by Microsoft (often part of MS Office). Hotmail is a web based e-mail service owned by Microsoft. "Outlook" and "AKA HotMail" do...
by dyarker
Thu Feb 08, 2018 4:17 pm
Forum: General Discussion
Topic: Detecting a magnet... from a distance.
Replies: 23
Views: 1716

Re: Detecting a magnet... from a distance.

In post 1 he said he wanted more posts on the forum.
by dyarker
Thu Feb 01, 2018 4:17 pm
Forum: General Discussion
Topic: Detecting a magnet... from a distance.
Replies: 23
Views: 1716

Re: Detecting a magnet... from a distance.

I recall rumor that ...
Not a rumor (that it could be done).
by dyarker
Tue Jan 23, 2018 7:06 am
Forum: General Discussion
Topic: i need some more Unobtainum...
Replies: 15
Views: 952

Re: i need some more Unobtainum...

... so i am more than sure it is working ...
No, you are not. You're sure it is transmitting something. Has the carrier drifted outside what the receivers are tuned for? Is the ID code transmitted the correct one for that transmitter/receiver pair? Is the data being transmitted corupt?