Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [diy]

Do It Yourself. Build, modify, repair something without the aid of trained professionals.

345 questions
8
votes
4 answers

What is "switched neutral"?

In the context of mains power, and wiring a light and switch. I thought I understood it, but what I'm thinking of I believe is something else called a "switch leg". Disclaimer: I'm a beginner with electrical.
jordan
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3
votes
1 answer

inkjet cartridge control

I would like to build this: https://www.youtube.com/watch?v=UjlHtHAN0DU I.e. a programmable stamp/printer that you slide along a piece of paper. I would like for it to use easily obtainable cartridges, such as HP. I looked around and found this:…
MathsStudent
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2
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1 answer

Address/Data on a DIY GBA cartridge?

I am working on a project where I need to create a custom Gameboy Advance cartridge. It has the maximum 32MB of data, which will be on a S29GL256P flash chip, and will save on a 32KB FM28V020 FRAM chip. I have figured out the data structure,…
BrickedUser
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1
vote
1 answer

Whats a good DIY book to learn electronics?

my eldest son is in a curious age. I like him to be able to tamper with electronics, something I believe is very valuable (in terms of knowledge and learning) and has the potential to be transformative. I never got the opportunity as a kid, so I…
DaPhil
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1
vote
3 answers

Is it possible to use a lead-acid battery as a power bank?

I have an Oxygen 6v 4.5Ah lead-acid battery. Can i use it somehow as a power bank to recharge my cellphone? Your response and help will be greatly appreciated.
Gurbrinder Singh Sekhon
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0
votes
2 answers

Will this junk pile spot welder plan work?

simulate this circuit – Schematic created using CircuitLab Like many other DIYers with a one-off need to build a few li-ion battery packs and can't justify buying a spot welder, I am planning to build one myself. I did much reading and dug through…
buurin
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0
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3 answers

Splicing 6+ Wires

My project contains a 12V parallel circuit and multiple switches. What is the preferred way to splice 6+ 12AWG wires together. My first thought was using butt connectors with 3 on each side, but at 12AWG not sure I'll have enough room with…
user3310766
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1 answer

What happens if you only energize one pole in a 2-pole 240 V circuit?

I have an Intermatic pool timer box that has two 120 V poles. The LINE has two pins (Pin 1 = L1, Pin 3 = L2), and the LOAD side has two pins (Pin 2 = Load 1, Pin 4 = Load 2). Currently, I have two loads, a 1/2HP pool pump motor, and a salt…
Justin T.
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2 answers

Necessary parts to build a DIY smartwatch

I want to create a simple smartwatch that can receive text messages via Bluetooth/wifi from a computer. However I start doing research on necessary components and either get completely professional chips that do much more than needed (also extremely…
Danny
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-2
votes
1 answer

Fuse for a 18650 pack

Are there any fuses that i can use to protect a 18650 battery pack. I have a 2s8p which is rated at 12.6v 21.6A. one battery is rated at 4.2v at 2700mAh.
George
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