I'm sure we all miss Mr. Mimms. I have one of his books, I think it was the 2nd one ?
Always had some interesting things in there..
Search found 4377 matches
- Wed Dec 07, 2022 6:35 am
- Forum: General Discussion
- Topic: LM3914 Help
- Replies: 14
- Views: 45780
- Wed Dec 07, 2022 6:24 am
- Forum: General Discussion
- Topic: HV SMPS design
- Replies: 7
- Views: 26330
Re: HV SMPS design
gotchya... I'll look around a bit, I'll see if i find anything..
- Tue Dec 06, 2022 9:19 am
- Forum: General Discussion
- Topic: LM3914 Help
- Replies: 14
- Views: 45780
Re: LM3914 Help
Dacflyer.png If it looks okay, I'll go to spec and recalculate the resistors. Unless you want the fun :grin: That would be awsome.. I wish there was a cookbook on this LM3914/15/16 series of chips.. I could think of so many thngs to make, but i can't get enough understanding of this things, even fr...
- Tue Dec 06, 2022 4:15 am
- Forum: General Discussion
- Topic: LM3914 Help
- Replies: 14
- Views: 45780
Re: LM3914 Help
Hey Dacflyer, Have you looked at these? https://www.allelectronics.com/mas_assets/cache/image/5/7/2/2/22306.Jpg https://www.allelectronics.com/item/bt-3/battery-level-meter/1.htm I have, but they are not programmable.. they just have some preset stuff, and wouldn't be accurate enough for my use.
- Tue Dec 06, 2022 4:13 am
- Forum: General Discussion
- Topic: LM3914 Help
- Replies: 14
- Views: 45780
- Tue Dec 06, 2022 4:12 am
- Forum: General Discussion
- Topic: Looking for a Blue Led display 4-dig. - 7-segment
- Replies: 17
- Views: 68638
Re: Looking for a Blue Led display 4-dig. - 7-segment
took a while yes... If these sell well later on, I might order others..
just waiting for them to arrive now..
just waiting for them to arrive now..
- Tue Dec 06, 2022 4:10 am
- Forum: General Discussion
- Topic: HV SMPS design
- Replies: 7
- Views: 26330
Re: HV SMPS design
when you say +/- 140V DC is that -70-0-+70, or somewhere about 140v ?
what is this being used on.
what is this being used on.
- Sat Dec 03, 2022 8:32 pm
- Forum: General Discussion
- Topic: LM3914 Help
- Replies: 14
- Views: 45780
LM3914 Help
I can usually manage my way thru on these things, But i need help on this one.. Is it possible to make a SOC volt meter for 24v use. I know the chip is 15v max, but i figure with a regulator and isolated input it can be possible. I'm looking I think for a 3volt swing ? my low volts would show 0% SOC...
- Mon Nov 28, 2022 12:49 pm
- Forum: General Discussion
- Topic: Ring Spotlight Camera
- Replies: 11
- Views: 33199
Re: Ring Spotlight Camera
rant on, I know what you mean..
The thing was easy to fix,, wouldn't mind to show others..
As a matter of fact, I have the cameras already spoken for, Buddy offered me 100$ ea..
The thing was easy to fix,, wouldn't mind to show others..
As a matter of fact, I have the cameras already spoken for, Buddy offered me 100$ ea..
- Wed Nov 23, 2022 8:31 am
- Forum: General Discussion
- Topic: Ring Spotlight Camera
- Replies: 11
- Views: 33199
Re: Ring Spotlight Camera
the led lights and the driver seem to fail not long after the warranty fails...
- Mon Nov 21, 2022 4:53 am
- Forum: General Discussion
- Topic: Ring Spotlight Camera
- Replies: 11
- Views: 33199
Re: Ring Spotlight Camera
Ehhh.. Not worth it.. maybe offer a repair service for those..lol
- Thu Nov 17, 2022 4:56 am
- Forum: General Discussion
- Topic: Ring Spotlight Camera
- Replies: 11
- Views: 33199
Re: Ring Spotlight Camera
I was given a pair of RING flood light cameras the other day as well, The Flood lights had failed, I thought that the lights were integral of the camera, But looking closer, i saw that the led driver is separate from the camera..and the lights were actually removable from the fixture.. So i removed ...
- Wed Nov 16, 2022 9:04 am
- Forum: General Discussion
- Topic: Ring Spotlight Camera
- Replies: 11
- Views: 33199
Re: Ring Spotlight Camera
Had a friend that was having phantom door bell issues. His electronic doorbell was randomly ringing, but the RING doorbell wasn't giving any notifications or detecting things.. I remember from other kinds of doorbell cameras, there was always a dummy load resistor to use with electronic doorbells. R...
- Thu Nov 10, 2022 2:34 pm
- Forum: General Discussion
- Topic: Looking for a Blue Led display 4-dig. - 7-segment
- Replies: 17
- Views: 68638
Re: Looking for a Blue Led display 4-dig. - 7-segment
ya, I have, but it's not feasible for anything small.. I think I might have found one.. Having to sweet talk the lady in china to send me a few samples.. this is one of the displays like Adafruit 1.2" displays. But in blue.. I'll have to order the Adafruit backpack board.. No biggie.. https://w...
- Wed Nov 09, 2022 4:58 pm
- Forum: General Discussion
- Topic: Looking for a Blue Led display 4-dig. - 7-segment
- Replies: 17
- Views: 68638
Re: Looking for a Blue Led display 4-dig. - 7-segment
Thought about using single 7-seg. and then driving them with the ol TPIC6B596 driver board. Have used these in several clocks before just different size digits. A bit more work, But doable.
Can't believe there isn't more variety out there for clock displays.
Can't believe there isn't more variety out there for clock displays.