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Discussion and news about component-level electronic circuits.Electronic systems and circuits
Updated: 4 hours 44 min ago

Pcb laser etcher

Thu, 01/25/2024 - 17:03
Pcb laser etcher

This is a machine I designed to laser etch pcb’s. I’ve made it so it can do double sided and be easy to align everything when mounting the blanks on the machine. the parts cost of 120 euros, maybe it’s worth making a kit of. I put a few pictures of the results that came from my previous design. I will upload the results of this machine after my uni exams.

submitted by /u/Mediocre-Advisor-728
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Disposable vapes now come with disposable displays…

Sun, 01/21/2024 - 23:11
Disposable vapes now come with disposable displays…

If you thought the batteries were bad, this is the next evolution. I found this in a parking lot last week and was shocked to see it has a Color led display in a disposable item.

The display is controlled by 6 pins and uses Charlieplexing.

I thought it would be cool to reuse it for something like a temperature and humidity display with an arduino or ESP. But then Charlieplexing broke my brain and I had to stop for the day. To be continued.

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

Sat, 01/20/2024 - 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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Digital POT Resistor with Display

Thu, 01/18/2024 - 19:14

Hello, I bought a digital POT resistor to replace the one installed in my GameCube console. I plan to mount this underneath or on the side of the console to easily adjust it as some reproduction games work at different settings. I want to attach a display to the resistor to display what the ohms are currently at and am wondering if there is an easy way to do this. I searched online, only found components to display voltage. Appreciate the help!

submitted by /u/Inthenstus
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My weird neon lamp multimeter

Wed, 01/17/2024 - 21:30
My weird neon lamp multimeter

I’ve never seen anything like this before, very crude build

submitted by /u/Tesla44289
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Fumes extractor DIY

Tue, 01/16/2024 - 05:27
Fumes extractor DIY

Put together my first electronic project. Savaged the fan from an old printer and decided to make something useful. Because the fan is 24V i had to use a step up converter that also tells me the battery voltage.

submitted by /u/VerySlowLorris
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