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Reddit:Electronics

Potentiometer with C.C.M & Co. Ltd
![]() | I am stumped by this potentiometer manufacturer. Internet searches reveal no information. This dual concentric stack has a manufacturers label on the back C.C.M. & Co. Ltd. There is a type CG. indicated. The middle wiper is switchable. The two two pots are 50K and 500K. [link] [comments] |
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Took some pics of an ADSL modem/router. There are some interesting networks/components on the PCB.
![]() | submitted by /u/gaspar_segura [link] [comments] |
Grandpa gave me a 40yo oscilloscope
![]() | submitted by /u/Mas0n8or [link] [comments] |
Nand gate full adder
![]() | 18 x 2n2222 transistors [link] [comments] |
Thru-hole mosfet to SMD
![]() | submitted by /u/irf3205 [link] [comments] |
Microphone usb mod
![]() | Works with basically everything, the sound card is from a usb-c headset [link] [comments] |
Hey everyone, I found a solution. I use a method to buffer the count value. When my sensor is at the magnetic edge and the values fluctuate rapidly between 010101 instead of 000 or 111, I set it to count only if the value remains 0 or 1 for more than 3...
![]() | submitted by /u/PulseStm [link] [comments] |
Dead bug style repair of a refrigerator inverter.
![]() | submitted by /u/obserience [link] [comments] |
I created my own analog pre-amp circuit using Opamp for electret condenser mic sounds really awesome
![]() | submitted by /u/native-devs [link] [comments] |
iFixit (@iFixit@mastodon.social)
![]() | submitted by /u/Linker3000 [link] [comments] |
Accidentaly bought more resistors than intended....
![]() | So I sort of bought all the resistors here by ordering 3 times and forgetting about the first 2 times. Atleast they are not all the same value. Altough i bought double the sets on 2w. Atleast i wont need too be buying resistors anytime soon. [link] [comments] |
PSA: Many VL6180x boards sold actually have VL6180 installed
![]() | So I wanted a nice and small proximity sensor module for my gesture-driven lights switch project, and found this nice device from ST: VL6180X proximity and ambient light sensor. There are newer sensors in VL53* family, but they lack ambient light part which is nice to have for a smart home device. I've purchased a couple of test modules from Amazon (https://www.amazon.com/vl6180x/s?k=vl6180x) and shortly found that ALS (light) sensor produces garbage output no matter which software library is used. After many hours of debugging and online search I've found out the reason: many modules sold on Amazon, AliExpress, etc, marked as VL6180X are actually VL6180. Which is exactly the same device in terms of pinout, software interface, etc - but lacks the ALS sensor. The visual difference is prominent - VL6180X does have third large optical window in the center (which is the ALS sensor), while VL6180 does not. However, many many vendors sell cheaper VL6180 as VL6180X, as shown on the picture and on half of the modules on the Amazon link above. So if you also want a proximity/ambient light sensor - look carefully at what you buy. [link] [comments] |
I repaired my wah pedal
![]() | My Ibanez WD7 wah half-died (see: i damaged it). The "special" IC that created the effect (NJM2777) got damaged due to overvoltage. After trying a couple of circuits, this one is the one that won! V2164 (Quad-VCA) used with single supply, and TL072 for virtual ground and control voltage inversion. PCB milled at work's CNC (yes, i'm privileged😁) So happy i could rescue my 15year old beloved beast with ~€7 in parts (and saved ~150 for a new wah!) [link] [comments] |
Power supply tester
![]() | submitted by /u/Important-Ad5990 [link] [comments] |
Yes, The Encoder final works.
![]() | submitted by /u/PulseStm [link] [comments] |
LED Cube 🌈
![]() | submitted by /u/Dry_Sport6031 [link] [comments] |
DNA scaffolds enable self-assembling 3D electronic devices
![]() | submitted by /u/Linker3000 [link] [comments] |
Designed my own pcb, works (kinda)
![]() | After a while i really wanted to make a pcb (or let a manufacturer produce it for me, like jlcpcb) and going from 1 idea to the next, i settled on making this somewhat universal usable pqfp-100 adapter board. The Z80 cpu was something i already had laying arround for a project, but dint want to spend too much design time if it where a dud. Well, after designing the board, waiting a week or so. Soldering my first ever pqfp(or tqfp alike) it works ☺️ some wires to a generic z80 testboard and its walking the memory space for new instructions (all nop). Now i need to programm a eeprom and get that pio and sio working. The pcb should also work for a RTL8019AS-LF network ic i got for a retro pc build. [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]