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Reddit:Electronics

I got 10 of these audio chips for $1.50
![]() | LA4446 [link] [comments] |
Finished my led flowers
![]() | submitted by /u/devicemodder2 [link] [comments] |
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Electronics malfunction
I have bought brand new computer since I began to use it, it was malfunctioning and now it has completely broke down I needed to put it into repair shop ( After 6 months of using ). The next thing was my phone it started randomly increasing and decreasing it's volume when I was only holding it in my hands. Also I wasn't able to turn it off many times. This is happening with majority of electronics when I work with them. Is there any explanation why this is happening?
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Can someone explain why this setup isn’t causing the motor to spin?
My end goal is to create a table that slowly rotates under a uv lamp for resin curing, I have a surplus access to small dc motors and cables I can splice for wall plugs and I’m trying to avoid burning batteries for this, but I don’t know anything about motors or electricity?
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Can someone explain why this setup isn’t causing the motor to spin?
My end goal is to create a table that slowly rotates under a uv lamp for resin curing, I have a surplus access to small dc motors and cables I can splice for wall plugs and I’m trying to avoid burning batteries for this, but I don’t know anything about motors or electricity?
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I converted two oil lamp decorations to use lithium cells.
My wife bought a pair of cheap decorative oil lamp things online with LED flickery flame candles in them. Cute, but the three LR44 cells in there weren't destined to last long so I figured I'd try to fit something better in there instead. So I got a couple of lithium batteries and charger boards. The boards were TP4056 based chargers but rated at 1A, too high for the 500mAh cell I was using. So I had to change the charging resistor. That was the fiddly bit, 0.5mm pencil for scale. That's an 0402 resistor.
Anyway, that went well, ended up with a charging current of 48mA so I set to work on converting the lights.
This was the original base plate, LR44s inside the holder. very dodgy looking cells. Popped off the bottom, and it couldn't have been simpler inside. I guess all the clever flickering circuitry is inside the LED itself. That's good, I don't have to worry about it relying on the internal resistance of the LR44s if there's circuitry in there.
So, I opened up the hole a little for access to the charging port, shoved the board in there, Stuck in in place with hot glue, along with the lithium cell, connected the LED using the original switch, and yay, all is well.
And as a bonus, the charging LED is visible through the plastic.
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Please help with L298N motor driver
I very new to electronics thing. Not sure what I’m doing wrong I follow this diagram and my motor still doesn’t work.
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The Basement Repair Setup
![]() | Work in progress still but it's better than nothing. [link] [comments] |
Not the best work bench, but it suits my needs
![]() | submitted by /u/BlownUpCapacitor [link] [comments] |
A Brief Introduction to Slot Antennas
![]() | submitted by /u/PullThisFinger [link] [comments] |
logic diagram for basic 2stage thermostat
![]() | submitted by /u/AnnoyingDiods [link] [comments] |
An oven with a software defined radio as it's WiFi transceiver.
![]() | submitted by /u/doitaljosh [link] [comments] |
Who needs Microcontrollers when you can just build an analog control yourself.
![]() | Thanks to a former comment I decided to try, if i could come up with something myself. Here it is. Not perfect, but does what it should do. [link] [comments] |
Motorola 68000 CISC Processor; circa 1979. - The design implements a 32-bit instruction set, with 32-bit registers and a 16-bit internal data bus. The address bus is 24 bits and does not use memory segmentation, which made it easier to program for. ...
![]() | submitted by /u/USWCboy [link] [comments] |
Electronic Equipment and Parts/Kit Score!
![]() | submitted by /u/BlownUpCapacitor [link] [comments] |
Here is a great example of an Intel 8253 Processor from 1977. Several shots are shown...enjoy!
![]() | submitted by /u/USWCboy [link] [comments] |
LM317 module with upgraded cooling.
![]() | submitted by /u/TheRealFailtester [link] [comments] |
Made a budget-friendly TC2030-compatible debug probe, with removable ribbon cable
![]() | submitted by /u/CactusMichael [link] [comments] |
Weekly discussion, complaint, and rant thread
Open to anything, including discussions, complaints, and rants.
Sub rules do not apply, so don't bother reporting incivility, off-topic, or spam.
Reddit-wide rules do apply.
To see the newest posts, sort the comments by "new" (instead of "best" or "top").
[link] [comments]