Reddit:Electronics

Features
Has many gpio pins
Does the job
Custom 3D-printed Case
Based on STM32F103C8 microcontroller
USB-C interface
RTC (Real-Time Clock) capabilities
Embedded microcontroller; low power consumption
Check the REPO pcb and gerber files
As always
Thank you for reading this <3

Building a dual rail power supply 0-40v and didn't have any 4700uf or bigger capacitors so a row of 1000x2 + 680x2 + 470x2 + 330x2 + 220x4 + 100x2 for a total of 6 040 will have to do.

Just a heads-up: be very careful when installing software that asks you to disable or bypass your system's security features.

I came across this in the official documentation for the offline EasyEDA app — they explicitly instruct users to bypass built-in protections:

https://oshwlab.com/forum/post/3695f3a2f9694de4b1b4cfa839a9a03e

Am I the only one who finds this not just unprofessional, but a serious security risk. Especially for users who might not fully understand the implications.

Curious to hear what others think.

Can't get most chips in DIP anymore...

god damn those LGA packages

New old stock form my surplus lot.

I was modifying a cheap handheld oscilloscope to fit in my diy modular synth but the horizontal layout was a bit too wide for my liking so I did this to rotate the screen 90° ☠️

These were early version of mask roms from the late 70's if you remove the epoxy over the crystal they become Intel D2716 can erase them and program again.

Tons of IC's.. So Far 6.5 hours sorting and backing up programmable chips. I live Stream day 1 rather boring https://youtube.com/live/6U9ADQovUoY Day 2 Soon. I sorted out all the programmables near the end and will do another day of backups soon. Some devices were not supported on my Xeltek or i did not have the adapters. So i need to Bust out the BPM Microsytems 1710.

"Work in progress: rebuilding my Inovonics 222 clone using proper unsound construction techniques."

We don’t really do micro soldering at work so had to do it without a microscope. I did however seal the solder points with epoxy after testing for shorts.

PicoDucky is a minimal RP2350 board designed to be used as a Rubber Ducky (HID Device) or even a Security key! It's tiny and compact and can be plugged directly into any USB Type-A ports.

All project files are here

I built this two years ago over the course of several months. The initial idea was to build my own portable Atari 2600 as I've seen other people do, but with my own spin. It kind of morphed into a 1920s steampunk project, when I wondered what the Atari would look like if it were designed and built in 1926. So I used and old gauge, old dial, brass button, metal toggle switches, and terminology to label it. I used the screen from a portable LCD TV and the speaker from a computer speaker. The battery is a new Lithium Ion rechargeable. The Atari itself was an Atari Junior, with wires remoted out to the switches and controls. The circuit had to have some modifications for the battery input and controls.

"Version 2" had all new labels as can be seen in the photos, and I added a blinking/flashing orange light inside to add some color to the inside.

The concept is that the game cartridges are called "Novelties." Inside each novelty is a spinning disk like a record. The electromechanical device inside the case reads the information on the disc and projects it onto the screen. The "stick" on the upper right controls the movement, and the button on the left is the joystick button. The AtariGraph is from "phonograph."

It plays any Atari 2600 game and has an input for a second joystick.

It's basically a usable work of art. I can't imagine making a second one.

After all these years I was pleased to finally make use of an old RadioShack DIP-1 IC proto-board that I had tucked away in a box! It was perfect for a mini Arduino shield when I built this cardboard Puzzle Bobble controller.

Know you can buy these, but this cost next to nothing. The probes are pin headers (without the little holding square thing, don't know what to call em), the Y shape they make fit perfectly around the tweezer center. Cheap plastic tweezers from Walmart worked just fine. Only purchase was the plugs. Amazingly helpful for testing SMD components on boards due to one handed operation.

Depotted a spare grill igniter.