T&L Publications

"Hope everyone has a Merry Christmas, Happy Holiday, etc. (To many specific celebrations/observances to list) "

Ya, Happy Whatever... Just be Happy..

I'm trying to revamp my analog looking led clock. Mainly need to rewire the display.. going to make it also GPS and RTC. Nice clock, but annoying to set the time, each time there's a power glitch.. and sometimes strong EMF will make the time go into Ludicrous speed...lol I'm Using an Arduino and a s...

Over the years I have made small electronic circuit board trees with bunches of leds etc.
some were kits, a few totally home made.. I don't know why the preview is sideways... They are proper when you click on them....
..
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thanks, I'll get to tinkering on it soon...Just need to scrounge a few parts 1st..

I saw this,, maybe it might give you some insight...

https://forum.allaboutcircuits.com/thre ... 0v.162071/

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..

gotchya... I'll look around a bit, I'll see if i find anything..

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...

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.

dyarker wrote: ↑Sun Dec 04, 2022 12:24 am Will this stay connected to battery full time and continuously on? Or with a momentary "on" switch?

Most likely stay on all the time...

took a while yes... If these sell well later on, I might order others..
just waiting for them to arrive now..

when you say +/- 140V DC is that -70-0-+70, or somewhere about 140v ?
what is this being used on.

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...

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 led lights and the driver seem to fail not long after the warranty fails...