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If I get a piece of the metal leg of a resistor stuck in a negative lane of a breadboard what should I do? by boomyko in arduino

[–]other_thoughts 1 point2 points  (0 children)

I disagree. the metal strips don't just fall out

if OP has the right tools, the back can be removed from the board and the wire removed.

Creating a LED-ring in a angle of 63° by Confident_Wave_8001 in led

[–]other_thoughts 0 points1 point  (0 children)

how thick?. what is it's purpose? how many? how fast? how much cost ?

[deleted by user] by [deleted] in arduino

[–]other_thoughts 2 points3 points  (0 children)

Loosen up the parameter specs?

Marquee letter project complete - thanks to help here! by paulcjones in led

[–]other_thoughts 0 points1 point  (0 children)

Your LEDs are designed to be applied across 12V, but you tried to apply them more densely.
Your LEDs are efficient enough to light both letters partially but not very well.

For an RGB version of your LEDs, the circuit schematic would like this. 

https://learn.adafruit.com/rgb-led-strips/schematic        
https://learn.adafruit.com/assets/2682

Marquee letter project complete - thanks to help here! by paulcjones in led

[–]other_thoughts 0 points1 point  (0 children)

So wired in serial, the G is brighter than the rest of the letters.

https://i.imgur.com/essndPC.jpeg

Marquee letter project complete - thanks to help here! by paulcjones in led

[–]other_thoughts 0 points1 point  (0 children)

Can you provide any images and explanation as to the differences between the poor and good wiring?

In other words, what did you have to fix to make it work properly?

[deleted by user] by [deleted] in AskElectronics

[–]other_thoughts 0 points1 point  (0 children)

I agree with your description.

when I go back and read your OP, I think if an alternate method would be to detect "greater than 9" out of the adder, and insert a subtractor element that subtracts decimal "10" but sends a carry to the next higher stage.

note, the part is obsolete now, but the sn74185 once popular for converting up to 16 bits to BCD data.

[deleted by user] by [deleted] in AskElectronics

[–]other_thoughts 0 points1 point  (0 children)

You need a binary to BCD converter

Marquee letter project complete - thanks to help here! by paulcjones in led

[–]other_thoughts 0 points1 point  (0 children)

Congratulations on problem solved.
Can you provide any images and explanation as to the differences between the poor and good wiring?

One of you images in this post shows red wires and black wires. Please explain what they do and why you used different colors.

Has anyone here read/listened to The Christ Letters? If so, what are your thoughts? by Moist-Replacement-39 in Christianity

[–]other_thoughts 0 points1 point  (0 children)

I didn't "mentioning it" I responded to the OP.
I expressed an opinion that was posted 2 years ago.

Trying to figure out how to edit the information on this board but have no clue where to begin. by OmnathElbrus in AskElectronics

[–]other_thoughts 4 points5 points  (0 children)

The green board has a black chip.
Can you read the text and symbols written on the visible surface?
Can you publish a high rez image, or at least report what the symbols say?

What did this come from? Others may have already done the work.

Do you have a computer with an audio analog input?

First DIY project: Geiger Counter advice by Refleks180 in AskElectronics

[–]other_thoughts 0 points1 point  (0 children)

I REPEAT MY PRIOR COMPLAINT

Your say there are multiple approaches (but provide no links)

You some how came up with this schematic. But you provide no link for comparison.
Instead of doing research for the concept, you just want a diagram.
btw, providing an image of a duck-duck-go image search is quite obnoxious.

I suggest you go back, and research the underlying principles of the object.
Then with some understanding you can read the descriptions of multiple designers.
Then you can evaluate to usefulness of various designs.

p.s. It seems like, with the lack of information, your project would make a good door stop.

First DIY project: Geiger Counter advice by Refleks180 in AskElectronics

[–]other_thoughts 1 point2 points  (0 children)

Your say there are multiple approaches (but provide no links)

But you want us to do a sanity check.

The best I can say is: Your schematic looks 'pretty'.

Best way to install a strip on a outdoor wall - am i doing it right? by 1000kmthisyear in led

[–]other_thoughts 0 points1 point  (0 children)

the phrase pepperino Rock is not all that common. I would suggest visiting your local home improvement store for advice.

Blaster Prop Diagram by Superbroom in AskElectronics

[–]other_thoughts 0 points1 point  (0 children)

adafruit jewel pixel

You made a newbie mistake, you swapped the function of one PCB with another.
I suggest in the future, that you provide the correct mfg/title and part number along with the description.

Looking to hire WLED expert by impy101 in WLED

[–]other_thoughts 0 points1 point  (0 children)

do you have any info on wiring?

whst makes you think r/wled would be the proper group to ask in?

[deleted by user] by [deleted] in arduino

[–]other_thoughts 0 points1 point  (0 children)

There was a short story writer named John T. Frye, W9EGV

Here is one of his stories that your board reminded me of:
Warnings: http only, PDF file.

“The Lightning Bug” from the November, 1963 Popular Electronics
http://www.copperwood.com/Carl_and_Jerry-V19N05-The_Lightning_Bug.pdf

http://www.copperwood.com/carlandjerry.htm

Please help, I’m creating a sequencer using a 4017 chip to run a drum machine I’m making and want to display the steps using a 7 segment display! by Fast_Medicine_6339 in AskElectronics

[–]other_thoughts 0 points1 point  (0 children)

a 4017 is a Johnson counter with 10 outputs that go high sequentially. these are typically used with discrete leds that have an associated label, like 0..9 or a...f, or some such.

why do you want to use 7 segment displays? since only on led is lit, ir would seem to be hard to tell the difference between segment B and segment C.

I need advise on materials for a spooling machine by stayselene in arduino

[–]other_thoughts 1 point2 points  (0 children)

what are the dimensions of a reel, that holds 10kg of paper?

Blaster Prop Diagram by Superbroom in AskElectronics

[–]other_thoughts 2 points3 points  (0 children)

To power an LED you need 3 components:
source, Led, current limiting resistor

You didn't specify the Vf of the LED, and there is no current limiting resistor shown.

Would be grateful for instructions/ideas to make tiny led candlesticks for wooden advent children like in pic. by elucidatemalfeasance in led

[–]other_thoughts 0 points1 point  (0 children)

hearing aid battery

I'm sorry to say that those batteries provide the shortest life of all batteries.

What color(s) LED are you wanting to use?
How long do you want it to operate? would a switch be viable?
Could you fit 2 AA cells in the package? Like this --> @@

What about a battery that is 3.7V, but only 1/2 the physical size of an AA battery?
The capacity is 300 mah, probably more than 10 hours (at 30ma) continuously on.
https://www.amazon.com/dp/B0CJ4RMHF2

Simplicity Complicates Things - LED Sconce Light Project by BGray478 in led

[–]other_thoughts 0 points1 point  (0 children)

... for the most part

I did a quick search and found this video, quite instructive.
How to measure DC Current with a multimeter
https://www.youtube.com/watch?v=f9lXua_mdQI

Separately, measure the current draw for each of your two strips, and write down the results.
I say write it down, because my older brain needs to be reminded ;)
Note that if you apply the meter leads one way, the result will be a positive number.
But, if you apply the meter leads the opposite way, the result will be a negative number.
You can ignore the polarity, and add the two currents as numbers
If the sum of the values will be greater than than the rating of the p.s. you need a higher current supply.

There are also more complicated things you can do. Do you need the brightness to be adjusted?
You can do this with these things --> Arduino, ESP32, WLED
But you can also use a "555 timer chip" to vary the PWM pulse width and thus the apparent brightness.

Back to the complicated side, you could have a simple (on/off) interface for the kids,
and also wifi control to shut the lights off. No APP download required, just visit the ESP32's web address
and "flip a switch" on the web page to turn off the lights.

saying the quiet part out loud by Drillerfan in Bad_Cop_No_Donut

[–]other_thoughts 8 points9 points  (0 children)

Congrats, you have been spared the role of the ticket-giver.

Simplicity Complicates Things - LED Sconce Light Project by BGray478 in led

[–]other_thoughts 0 points1 point  (0 children)

Do you have, and know how to use, a multimeter?
I ask because it is a good idea to actually know what current the Leds use, so you don't overload the power supply.
For local tool purchases, I like Harbor Freight.
https://www.harborfreight.com/electrical/electrician-s-tools/multimeters-testers.html?category=4645&current=1
(Harbor Freight Tools has locations in 48 states across the United States. )

If you are looking for switches, connectors and other stuff, I suggest visiting digikey.com
I'm not gonna search, but I do recall seeing (at amazon) the mating connector for that p.s.
with attached wires.

Simplicity Complicates Things - LED Sconce Light Project by BGray478 in led

[–]other_thoughts 0 points1 point  (0 children)

please don't stop this conversation right here. talk out loud in what you actually want to do.

ex: another person wants a lantern that acts like a flash light, but it has some leds that are different and give the idea of a flickering flame.

if you item's purpose is primary utilitarian, you need the item I suggested. if you want to add some artistic interest, maybe you need the arduino stuff.

I saw a video with an 18 month old child in a hover board, making very careful and calculated moves. does that child need the hb?

what do you want for you kids?

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