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Discussion and news about component-level electronic circuits.Electronic systems and circuits
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Bench

Срд, 04/17/2024 - 23:35
Bench

My bench desk

submitted by /u/Part_salvager616
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Thank you for the comments on my first circuit! Got a little carried away today. Astable, monostable and bistable circuits with a switch and some gates!

Срд, 04/17/2024 - 12:11
Thank you for the comments on my first circuit! Got a little carried away today. Astable, monostable and bistable circuits with a switch and some gates!

Next I want to look into making some registers, and maybe solder some cable with pins to act as a bus. Also want to buy smaller resistors, they are HUGE

submitted by /u/josufh
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Color sensor/detector without microcontroller up-to 7 colors

Пн, 04/15/2024 - 20:53
Color sensor/detector without microcontroller up-to 7 colors

This circuit can detect 7 different colors (red, green, blue, yellow, cyan, magenta, white) without any kind of microcontroller just with ldr and rgb led and bunch of ics like 555 timer that provides a clock pulse for 4017 ic so it can light up the rgb led with each pin separated from the other and shift register to save the data from the op amp which is connected to the ldr and bunch of diodes as rom memory and 7 segment display to show the first letter of the color.

submitted by /u/winter__g
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Rare Soviet frequency standard clock (Ч7-3)

Сбт, 04/13/2024 - 20:33
Rare Soviet frequency standard clock (Ч7-3)

Managed to save this from the dump yesterday. The thing apperas to be extremely rare as there is no info on it even in Russian internet segment. No ICs inside, only transistors.

submitted by /u/AltCtrlGraphene
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Weekly discussion, complaint, and rant thread

Сбт, 04/13/2024 - 18:00

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").

submitted by /u/AutoModerator
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Finished my first project

Чтв, 04/11/2024 - 02:51
Finished my first project

I made a AND gate on a through hole board. Took a while (1hrs 30 mins) but it was worth it. Try to guess how old I am. (Hint): under 20yo.

submitted by /u/No-Percentage1653
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Workbench Wednesday anyone?

Срд, 04/10/2024 - 11:13
Workbench Wednesday anyone?

I’m 14 and this is my electronics setup. Got into it about 2 months ago and fun fact, I did my first soldiering job today (just soldered some pins onto an rfid scanner) but it was sooo fun!!

submitted by /u/K4vin60
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I ordered a "few" boards

Втр, 04/09/2024 - 16:33
I ordered a "few" boards

I don't know how to program any of these chips but it's better to be curious than smart. I just ordered different ones to see what they can do. All of these boards are new besides the Wemos board.

submitted by /u/Blytical
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Is electronic engineering dead?

Пн, 04/08/2024 - 14:37

If we consider only circuit design for PCBs, almost all the complexity is moving toward integrated circuits (chip and modules) and/or in code for FPGA or microcontrollers/microprocessors. The role of hardware engineers is still important, because of PCB layout and BOMs, but from the hardware design point of view is almost all already done, just pick a component, read the datasheet and copy the reference design. I’m simplifying, I know, find the right component is not easy at all, but it seems the hardware engineer role is just reduced to search and connect modules. Only ICs designers delve into the complexity of hardware design. Do you agree with me or can you explain why I’m wrong, pls?

My question arise because I’m considering whether or not to move to hardware design from firmware. Currently I’ve a master in EE but I’m working as a firmware designer for microcontrollers.

submitted by /u/Andrea-CPU96
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What is this module ?

Пн, 04/08/2024 - 07:27
What is this module ?

Hello everyone,

could someone tell me where I found the datasheet for this module "Mitsubishi J2-Q03A-D" I can't find it on the Web, very possible it's an IGBT, I want to know what's burnt too

Thanks

submitted by /u/bil7200
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I present to you: the speaker

Пн, 04/08/2024 - 07:16
 the speaker

It even comes with a light if it's too dark. Incredible!

submitted by /u/Desperate_Original56
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I present, the mini altoid tin speaker

Ндл, 04/07/2024 - 22:50
I present, the mini altoid tin speaker

It may look small (ring for scale) but it sure is mighty with a max volume of 110db. I 3d printed a case too. What do you think?

submitted by /u/AlbertoIsExpired
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