Electronics: General Discussion

ZappBots wishes a warm welcome to everyone.

Especially our visitors from Savage///Circuits and Parallax!!!

Please take a look our new forums, we hope you register and become an active user.

The ZappBots forums are being run on phpBB 3.1.4 software which is different then the vBulletin used on the Savage///Circuits and Parallax forums.
Therefore, things look and work a little different, especially creating posts and uploading images / attachments.

The important thing is we have a place toTalk, Learn and Showcase our projects.

Electronics: General Discussion

New Topic

16 topics • Page 1 of 1

Topics

Replies

Views

Last post

Did you know...

Last post by Savage///Circuits « Tue Mar 14, 2023 10:11 pm

by Savage///Circuits » Tue Mar 14, 2023 10:11 pm

...you can buy electronics components on Walmart.com?!? I actually bought a tube of LM3914 ICs pretty cheap!

0 Replies

92 Views

Last post by Savage///Circuits View the latest post
Tue Mar 14, 2023 10:11 pm
LED Matrixing

Last post by Savage///Circuits « Sat Jan 28, 2023 12:21 am
Replies: 13
1

2
Attachment(s) by jknightandkarr » Wed Nov 02, 2022 5:44 pm

I've moved on to another part of my electronics project for my Knight Dash. I'm going to start working on 4 panels all have either 12 or 24 led...
13 Replies

282 Views

Last post by Savage///Circuits View the latest post
Sat Jan 28, 2023 12:21 am
Protoboard question

Last post by jknightandkarr « Mon Jan 02, 2023 7:46 pm
Replies: 6
Attachment(s) by jknightandkarr » Sun Jan 01, 2023 11:04 am

I have a question. Has anyone ever used place like JLCPCB or PCBWAY and order their own protoboards? Reason is, for my led matrixing on 4 boards of...

6 Replies

112 Views

Last post by jknightandkarr View the latest post
Mon Jan 02, 2023 7:46 pm
Transistor issues??

Last post by jknightandkarr « Wed Jun 29, 2022 3:06 am
Replies: 37
1

2

3

4
Attachment(s) by jknightandkarr » Mon Jan 03, 2022 11:13 pm

Working with PN2907 & 2N3906 PNP transistors, See link here for information about the project details, , but I have 5V dc on the Emitters,...
37 Replies

3405 Views

Last post by jknightandkarr View the latest post
Wed Jun 29, 2022 3:06 am
Decoding DTMF Tones

Last post by jknightandkarr « Fri Apr 23, 2021 5:14 pm
Replies: 2
by jknightandkarr » Sat Apr 17, 2021 3:29 pm

I am in need to decode DTMF tones from an audio sample and wondered whats the best option to do this? I found this website
and saw a decoder...

2 Replies

1139 Views

Last post by jknightandkarr View the latest post
Fri Apr 23, 2021 5:14 pm
PIR Triggered Relay Circuits

Last post by Savage///Circuits « Fri Feb 19, 2021 1:55 am

by Savage///Circuits » Fri Feb 19, 2021 1:55 am

Does anyone happen to have a copy of this project? Preferably the original ZIP? It's one of many things I lost. All I can find online is the original...

0 Replies

609 Views

Last post by Savage///Circuits View the latest post
Fri Feb 19, 2021 1:55 am
LED question

Last post by jknightandkarr « Sat Feb 11, 2017 1:53 pm

by jknightandkarr » Sat Feb 11, 2017 1:53 pm

I gotta kinda silly question. I am in need of .4" blue alphanumeric led displays, but there aren't any available that I can afford, do I had a...

0 Replies

2322 Views

Last post by jknightandkarr View the latest post
Sat Feb 11, 2017 1:53 pm
Making an led brighter

Last post by Granz « Sat Feb 04, 2017 6:05 pm
Replies: 3
by jknightandkarr » Thu Feb 02, 2017 9:47 pm

I replaced the power and hdd leds on my desktop, and noticed that the hdd led is really dim. I was thinking of maybe making a power boosting circuit...

3 Replies

2000 Views

Last post by Granz View the latest post
Sat Feb 04, 2017 6:05 pm
Fixing my PDB-3 bad buttons

Last post by jknightandkarr « Thu Oct 20, 2016 5:09 pm
Replies: 2
by jknightandkarr » Wed Oct 19, 2016 1:34 pm

Well for quite a while I needed to replace buttons on my Pro Dev Board. It had 3 of 8 buttons have the button come off, I couldn't because I didn't...

2 Replies

2014 Views

Last post by jknightandkarr View the latest post
Thu Oct 20, 2016 5:09 pm
Working with SMT devices

Last post by jknightandkarr « Sun Oct 16, 2016 2:58 pm

by jknightandkarr » Sun Oct 16, 2016 2:58 pm

Well as the title suggests I am looking for information on working with SMT devices. I have some info on soldering, but not all, but i am looking for...

0 Replies

1463 Views

Last post by jknightandkarr View the latest post
Sun Oct 16, 2016 2:58 pm
WS2812B Vs 55w driving lamp bulb

Last post by jknightandkarr « Tue Oct 04, 2016 7:53 pm
Replies: 3
by jknightandkarr » Sat Sep 17, 2016 3:04 pm

As the title suggests I wish to compare the WS2812B leds vs 55w driving lamp bulbs. Now first off the bulbs I am trying to replace are in my knight...

3 Replies

2182 Views

Last post by jknightandkarr View the latest post
Tue Oct 04, 2016 7:53 pm
Component selection help

Last post by jknightandkarr « Sat Oct 24, 2015 7:37 pm
Replies: 5
by jknightandkarr » Fri Oct 16, 2015 6:51 pm

Looking at various stuff for a project n need advice. Its for a relay board. Should. I just use relays, solid state relays, a big transistor, mosfet...

5 Replies

2982 Views

Last post by jknightandkarr View the latest post
Sat Oct 24, 2015 7:37 pm
Wanted a check of my work.

Last post by jknightandkarr « Mon Sep 21, 2015 11:07 pm
Replies: 4
by jknightandkarr » Fri Sep 11, 2015 6:50 pm

I am using DipTrace to create a couple of PCB's and wanted someone to check my work. If anyone could do that for me I'd appreciate it. Besides...

4 Replies

2391 Views

Last post by jknightandkarr View the latest post
Mon Sep 21, 2015 11:07 pm
Organizing Project Parts

Last post by MrBi11 « Wed Aug 26, 2015 8:42 pm
Replies: 9
by Savage///Circuits » Thu May 14, 2015 10:02 pm

(Originally posted on the Savage///Circuits Forums September 23rd, 2014, 05:02 PM by Chris Savage)

Organizing Project Parts

One thing I used to...

9 Replies

3723 Views

Last post by MrBi11 View the latest post
Wed Aug 26, 2015 8:42 pm
Organizing Electronics Parts

Last post by jknightandkarr « Thu Jul 09, 2015 8:09 pm
Replies: 4
by Savage///Circuits » Thu May 14, 2015 9:23 pm

(Originally posted on the Savage///Circuits Forums September 23rd, 2014, 02:45 PM by Chris Savage)

Organizing Electronics Parts

When I first got...

4 Replies

2628 Views

Last post by jknightandkarr View the latest post
Thu Jul 09, 2015 8:09 pm
Info: Relay Driver Circuits

Last post by Savage///Circuits « Thu May 14, 2015 10:22 pm

by Savage///Circuits » Thu May 14, 2015 10:22 pm

(Originally posted on the Savage///Circuits Forums March 28th, 2014, 12:15 AM by Chris Savage)

Relay Driver Circuits

Figure 1

Figure 1 shows...

0 Replies

3005 Views

Last post by Savage///Circuits View the latest post
Thu May 14, 2015 10:22 pm

New Topic

16 topics • Page 1 of 1

Return to Board Index

Who is online

Users browsing this forum: No registered users and 2 guests

Forum permissions

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum