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InvisibleBuckthorn
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Electronic Invention
    #28563961 - 12/01/23 03:50 PM (1 month, 26 days ago)

Anyone can link me to DIY electronics using a 9V battery?

Fans or light circuitry or whatever?


Edited by Buckthorn (12/06/23 05:04 PM)


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Online10ftTall
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Re: 9V battery engineer experiments? [Re: Buckthorn]
    #28564091 - 12/01/23 05:35 PM (1 month, 26 days ago)

Ask god the father


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OfflineLogicaL ChaosM
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Re: 9V battery engineer experiments? [Re: Buckthorn]
    #28564722 - 12/02/23 04:11 AM (1 month, 25 days ago)



--------------------
"What you must understand is that your physical dimension affects everyone in the higher dimensions as well. All things are interconnected. All things are One. Therefore, if one dimension is broken or out of balance, then all other dimensions will experience repercussions." - Pleiadian Prophecy 2020 The New Golden Age by James Carwin

PROJECT BLUE BOOK ANALYSIS! (312 pages!) | Psychedelics & UFOs | Ready to Contact UFOs? | The Source on Mushrooms:shroomeryhead:| Trippy Gematrix | Dj TeknoLogical | Fentanyl Test Kits R.I.P. Big Worm :tombstone: || The Start of the Ascension Process was 2020. Welcome to the Next Great Era of Earth 🌎🌍🌏                                                         
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InvisibleBuckthorn
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Re: 9V battery engineer experiments? [Re: LogicaL Chaos]
    #28565317 - 12/02/23 01:52 PM (1 month, 25 days ago)

Thanks how can I attach a low volt or low wat fishpump aerator bubbler to a battery?


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OfflineLogicaL ChaosM
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Re: 9V battery engineer experiments? [Re: Buckthorn]
    #28565371 - 12/02/23 02:28 PM (1 month, 25 days ago)

You could dissemble a dead 9volt battery and use the top terminals or you could buy the 9volt battery terminal online and hook up the + and - wires that way. Im assuming you have a soldiering gun?


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InvisibleBuckthorn
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Re: 9V battery engineer experiments? [Re: LogicaL Chaos]
    #28565502 - 12/02/23 04:05 PM (1 month, 25 days ago)

I’ve never used a sodering gun but i know where to get one, the fish pump is 5v? I found a cartridge on amazon that has a usb port and hosts 2 duhbel A batteries for $8. I’d like to engineer my own machobes though


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OfflineLogicaL ChaosM
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Re: 9V battery engineer experiments? [Re: Buckthorn]
    #28565601 - 12/02/23 05:24 PM (1 month, 25 days ago)

Youre gonna need one. They are pretty simple. They heat up then you melt solder onto a pair of wires to "weld" them together. Let cool and insulate with electric tape or shrinking wire insulation. It takes practice but its a pretty simple process.

If you are trying to go from 9volt to 5volt, you'll need some low-voltage resistors. The other simplier option is getting a A/C-to-D/C converter that has a voltage selector. Some even have an amperage selector too.

But it sounds like you are wanting to use AA batteries now?


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InvisibleBuckthorn
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Re: 9V battery engineer experiments? [Re: LogicaL Chaos]
    #28566342 - 12/03/23 07:23 AM (1 month, 24 days ago)

I want to use double A batteries because of a machine I bought on Amazon but, I’d like to figure out this engineering to my own grandeur. What book should I read about resisters and other electronics? I need to invent a wireless light source of 6500K


Edited by Buckthorn (12/03/23 07:26 AM)


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InvisibleBuckthorn
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Re: 9V battery engineer experiments? [Re: Buckthorn]
    #28566630 - 12/03/23 11:36 AM (1 month, 24 days ago)

Or a basic least expensive solar panel to power a battery?


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OfflineLogicaL ChaosM
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Re: 9V battery engineer experiments? [Re: Buckthorn]
    #28567209 - 12/03/23 06:01 PM (1 month, 24 days ago)

I like to shop eBay for info books occassionally.

"Hacking Electronics" DIY Book

If you want to make a wireless light source, id recommend making a lantern using lattern batteries which hold a lot more power than AA batteries.

6-Volt Lattern Battery


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Invisiblekoraks
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Re: 9V battery engineer experiments? [Re: LogicaL Chaos] * 1
    #28567776 - 12/04/23 03:56 AM (1 month, 23 days ago)

Quote:

LogicaL Chaos said:
If you are trying to go from 9volt to 5volt, you'll need some low-voltage resistors. The other simplier option is getting a A/C-to-D/C converter that has a voltage selector. Some even have an amperage selector too.





To go from 9V to 5V DC you typically use a DC-DC converter. The alternative is a linear regulator, but that's inefficient and tends to get hot.

"Low voltage resistors" is an odd term. You're probably thinking of resistors that could be used to achieve a voltage drop if the power supply outputs a higher voltage than the load requires, BUT (!!!!) this only works for constant loads (so NOT motors, active electronics etc.) AND it's massively wasteful and overall not a good idea.

9V smoke detector batteries aren't good for many things since their current delivering capacity is really really limited. They're unfit for running motors etc. They're nice for running a tiny little LED on with an appropriate series resistor - which is just about the only application where a series resistor makes sense to control current.


Quote:

Buckthorn said:
Or a basic least expensive solar panel to power a battery?



Keep in mind you need a charge controller between the panel and the battery.

Of course when working with electronics, use a battery if the thing needs to be portable or used away from a wall outlet. For all other domestic stuff it makes far more sense to power the project from an AC/DC power supply plugged into an outlet. For small projects, USB phone chargers are decent power supplies since they generally output a convenient 5VDC at 1-2A. Otherwise use something like a 12V DC wall wart or even on old laptop power supply and appropriate DC-DC converters for your project.

Save the batteries for what they're intended for, e.g. smoke alarms. So:

Quote:

Buckthorn said:
Thanks how can I attach a low volt or low wat fishpump aerator bubbler to a battery?



You typically don't, because fish pumps and bubbles are usually used in a domestic setting where there's decent access to a wall outlet. Most bubblers and pumps are made for 115/230VAC operation anyway so it makes the most sense to just plug them in the way they're supposed to. If you insist on running them off a battery, a 9V smoke alarm battery is a non-starter for the reasons explained earlier. You could use a big Li-Ion battery or a lead acid battery and hook up a 115V 'inverter' (really a DC-AC power supply) up to it. These vary in terms of quality and cost, but the simple/cheap ones will power an aquarium pump just fine. They're not 100% efficient (by far) and charging a battery is also not a 100% efficient process, so it's by definition a wasteful way to power something. One more reason to just plug the thing into an outlet and call it good.

Quote:

Buckthorn said:
I need to invent a wireless light source of 6500K



Just get a ready made unit off the shelf. Something like this doesn't make any sense to DIY it given the plentiful supply of devices that will suit your needs.

If you insist in DIYing, here's how:
* List functional requirements; i.e. what should the device do, under which circumstances, and what are its performance parameters (e.g. you mention 6500K, but not CRI - is CRI80 OK or does it need to be 95+ etc).
* Determine the output power you'll need. You can approximate this by starting from the luminous flux (amount of light) you need (in lumens) and then using the average efficiency of LEDs (which will be 90-100lm/Watt mostly) to determine how much LED power you'll approximately need.
* Determine appropriate LEDs to use for your project. This will depend on how much power you need and what kind of form factor/size you need. Take into account cooling, which may need to be active at higher power densities.
* Determine the type of battery you'll use for your project if it needs to be portable. Otherwise just use a wall wart power supply. If using a battery (which will NOT be a 9V alkaline type) for a hand-held device, consider something standard like rechargeable AA's or 18650's for which chargers are easily available.
* Based on battery and LEDs, work out how many LEDs you'll put in series and how many in parallel, and how that works out in voltage + current requirements. This will be combined with how many batteries you'll use and whether you'll connect them in series or parallel.
* For the LEDs, use an appropriate LED driver IC. There are plenty around, and also ready-made black box modules that will output a set current (e.g. 350mA) at a wide input voltage range.
* Then design whatever auxiliary electronics needed to hook everything up and find/make a nice box for it. Test, assemble, enjoy.

At approx. 5% of the above project you'll realize that the advice to just buy a damn thing off the shelf is excellent and you should have listened to it. But you'll probably be committed to solving the thing at that point, thinking you're at least halfway there, and you'll learn a thing or two in the process. Some of the things you'll learn will be about electronics. Most of the things will be about how things that seem simple turn out much more complex, and how to deal with that (hopefully).

Remember that when driving LEDs you're driving current and NOT voltage. So if your LEDs are rated for e.g. 350mA and they'll have a forward voltage of 3.2-3.6V at that current, DO NOT (!!!!) get some kind of power supply and set it to 3.5V expecting that all will be fine. You buy/make a current driver circuit that accepts a higher voltage than the LED needs and that automatically throttles its output so that the current passed through the LED remains constant at the set level.

PS: most Instructables on electronics are made by people who have only a faint notion of electronics and their projects generally contain several fundamental design flaws. Explanations are virtually never complete and usually inaccurate. Overall they're a poor source to learn from.


Quote:

LogicaL Chaos said:
6-Volt Lattern Battery



That's stupid. Just get Li-IOn 18650's or NiMH AA's. These aren't the 1970s.

As to reading/theory: Ohm's law covers 80% of what you need. Add Kirchoff's law for another 15%.

Finally, ask specific questions.
Choose a simple (!!!) project at first. Try it. If it doesn't work, try to figure out why. If you can't, post a schematic and ask why it doesn't work. Explain what you've done and what measurements you've taken.
A forum like this one is great to get started as long as you follow their rules: https://forum.arduino.cc/c/using-arduino/general-electronics/21 There's lots of helpful people on there who will walk you through anything from very basic to fairly advanced.


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InvisibleBuckthorn
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Re: 9V battery engineer experiments? [Re: koraks]
    #28568110 - 12/04/23 10:48 AM (1 month, 23 days ago)

Quote:


At approx. 5% of the above project you'll realize that the advice to just buy a damn thing off the shelf is excellent and you should have listened to it.




I could not find what I was looking for online, I’m looking for a wireless 6500K light source!

I bought this:

DGZZI USB Female Socket 2 AA Battery Case Box Holder with ON-Off Switch and https://a.co/d/gbVtGAa
  For this:
Useekoo USB Aquarium Air Pump, Ultra Durable & Quiet USB Nano Air Pump, Small Air Bubbler for Aquarium Fish Tank with Air Stone and Silicone Tube https://a.co/d/1vTp4Fz


Edited by Buckthorn (12/04/23 10:54 AM)


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Invisiblekoraks
Registered: 06/02/03
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Re: 9V battery engineer experiments? [Re: Buckthorn]
    #28568399 - 12/04/23 02:25 PM (1 month, 23 days ago)

Well throw in two NiMH AA's and you can bubble anywhere you go.


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InvisibleBuckthorn
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Re: 9V battery engineer experiments? [Re: koraks]
    #28568455 - 12/04/23 03:15 PM (1 month, 23 days ago)

You offered extraordinary insight! wanted to make my own battery powered device for these low voltage machines. I ordered this book too! Electrical engineering without prior knowledge: Understand the basics within 7 days (Become an Engineer Without Prior Knowledge) https://a.co/d/aVOIJCT

I thought about modifying this into a FC growlight? Worm Light Illumination LED Lamps for GBC GBP Gameboy Color & Gameboy Pocket https://a.co/d/1PyW5gM


Edited by Buckthorn (12/04/23 05:04 PM)


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Invisiblekoraks
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Re: 9V battery engineer experiments? [Re: Buckthorn]
    #28569149 - 12/05/23 12:23 AM (1 month, 22 days ago)

Quote:

Buckthorn said:
I thought about modifying this into a FC growlight? Worm Light Illumination LED Lamps for GBC GBP Gameboy Color & Gameboy Pocket https://a.co/d/1PyW5gM



Just replace the LED with one(s) of your choice of color.
Since it takes some getting used to soldering SMD parts, it'll be easier to just purchase a USB cable, (through hole type) resistor and suitable LED, cut open the cable and connect the LED and resistor in series between +5V and GND.

Congrats on the book; it looks like a nice place to start.


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InvisibleBuckthorn
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Re: 9V battery engineer experiments? [Re: koraks]
    #28569367 - 12/05/23 07:12 AM (1 month, 22 days ago)

I need a wireless 6500K light for my Fruit Chamber.


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Invisiblekoraks
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Re: 9V battery engineer experiments? [Re: Buckthorn]
    #28569495 - 12/05/23 08:29 AM (1 month, 22 days ago)

Color temperature isn't critical for that application, neither is CRI. Take any old cool white flashlight, fill 'er up with rechargeable batteries and suspend over the fruiting chamber.


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InvisibleBuckthorn
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Re: 9V battery engineer experiments? [Re: koraks]
    #28571494 - 12/06/23 12:27 PM (1 month, 21 days ago)

https://www.amazon.com/dp/B09BNBRGLN&tag=theshro-20

What do I need to invent one of these USB sockets with 2 AA batteries but with open box like this? Portable Emergency Phone Charger Powered Quick Charge Portable Charger by 2pcs AA Batteries with Micro USB/USB-C/for Apple Bonnectors... https://a.co/d/j9Ucp3L


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Invisiblekoraks
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Re: 9V battery engineer experiments? [Re: Buckthorn]
    #28572369 - 12/07/23 04:35 AM (1 month, 20 days ago)

I'm sorry, I don't understand what you want. It looks like the second Amazon link matches your description: two AA batteries, open construction, USB connector.

If you want to DIY something like this, you could 3d print an enclosure for 2xAA and get a small DC-DC step up converter that will take 1.5-3V in and output 5V. Like this: https://www.amazon.com/WWZMDiB-MT3608-Converter-Adjustable-Module/dp/B0B6HZL9L9/ Solder that up to this: https://www.amazon.com/DAOKI-Connector-Adapter-2-54mm-Converter/dp/B07X87FQPP/
For the batteries get something like this: https://www.amazon.com/WAYLLSHINE-2Pcs-Battery-Holder-Leads/dp/B09V7Z4MT7


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Offlineredchigh
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Re: 9V battery engineer experiments? [Re: koraks]
    #28576544 - 12/10/23 01:42 AM (1 month, 17 days ago)

The average scrapped project pc fan will run pretty well on a 9volt battery.


Used it for a small compact grow box several years ago.


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InvisibleBuckthorn
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Re: 9V battery engineer experiments? [Re: redchigh]
    #28578447 - 12/11/23 11:09 AM (1 month, 16 days ago)

How many hours a week did the battery last you?


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Offlineredchigh
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Re: 9V battery engineer experiments? [Re: Buckthorn]
    #28578539 - 12/11/23 12:49 PM (1 month, 16 days ago)

Just a few hours.

I used a 12v small appliance dc adapter at the time, the 9v was a backup.
Theyd run about half a day at decent speed. 

I used a 2 battery portable handheld fan once, but the vibrations knocked it down and it broke a specimen.


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Invisiblekoraks
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Re: 9V battery engineer experiments? [Re: Buckthorn]
    #28579520 - 12/12/23 03:48 AM (1 month, 15 days ago)

Quote:

Buckthorn said:
How many hours a week did the battery last you?



Taking a theoretical angle: the capacity of a 9V battery is typically 400-500mAh.
A typical 80mm PC fan draws something like 150mA or thereabouts. Theoretically, this will give you maybe 3 hours of fun. However, as the battery discharges, voltage drops and at some point it will drop below the voltage where a 12V fan will run. So in reality, you may get less than 3 hours from that same battery and fan combination.

What helps is that the fan will draw a little less current than its nominal rating if you run it at a lower voltage, so this stretches it a bit. Also, if the fan is already running, it tends to keep running at even fairly low voltages; many computer fans will keep running at around 5V although they won't start at that voltage. So you may notice that after a few hours, the fan stil runs, but if you disconnect it and reconnect it, it'll refuse to restart.

For an static, indoor setup, a wall wart/adapter is a more sensible idea as pointed out earlier.


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Offlinegopher
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Re: 9V battery engineer experiments? [Re: koraks]
    #28580309 - 12/12/23 06:01 PM (1 month, 15 days ago)

You can get rechargeable lithium 9v on amazon, but I think I read somewhere that they are actually less than 9v the way lithium batteries work


--------------------
For most of the normies out there, an operating system is just a bootloader for Google Chrome.

Since Disney has obtained tremendous value from the public domain, knows how important the public domain is, and is firmly determined to never contribute anything to it.

My pronouns are He and Him, and my adjectives are Fat and Jazzy

:kratom:


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InvisibleBuckthorn
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Re: 9V battery engineer experiments? [Re: gopher]
    #28585594 - 12/16/23 04:01 PM (1 month, 11 days ago)

How could I invent an aroma-oil diffuser using these wirds? WHDTS 20mm 113KHz Ultrasonic Atomization Maker Mist Atomizer DIY Humidifier with PCB 3.7-12V https://a.co/d/fVzBEuN


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Invisiblekoraks
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Re: 9V battery engineer experiments? [Re: Buckthorn]
    #28586271 - 12/17/23 02:12 AM (1 month, 10 days ago)

Quote:

Buckthorn said:
How could I invent



Dude. Just recreate what's shown in the last picture of that ad/item. It's literally shown there.


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