Keep private conversations private by simultaneously pressing volume up and down on this modified Echo Dot.

If you want to start an argument between technophiles, just bring up smart speakers. An outpouring of strong opinions is all but guaranteed to follow. Some will point to the conveniences of interacting with devices by voice command. Others will focus on the privacy concerns associated with having an Internet-connected speaker in your home, sending who knows what, to who knows where, to do who knows what.

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PasswordPump v2.0 Can Manage Credentials for Up to 250 Accounts

The USB device is outfitted with a pair of removable EEPROM chips that store credentials using AES-256 encryption.

It’s not uncommon for most PC users to have multiple accounts and passwords for a host of different sites and applications. Trying to remember all of those credentials can be a pain or a downright disaster if passwords are forgotten, not to mention hackers could steal any sensitive information. To that end, the safest and easiest way to manage website passwords and other credentials are to store that information offsite, rather than locally or in the cloud.

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Luke Wren’s Surface-Mount Pico DVI Sock Brings Video Output Capabilities to the RaspberryPi Pico

Compact surface-mount add-on offers a fully-functional DVI video output without sacrificing breadboard compatibility.

Engineer Luke Wren has released design files for a handy Raspberry Pi Pico upgrade, giving the low-cost microcontroller a DVI video output with a minimal increase in footprint: the Pico DVI Sock.

“[I] called it a Sock because it’s like a HAT [Hardware Attached on Top, a standard for add-ons which fit on the Raspberry Pi single-board computer family’s 40-pin general-purpose input/output (GPIO) header] but small and on the bottom,” Wren explains of the board, which adds little more than the size of an HDMI socket to the end of the host Raspberry Pi Pico.

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HDD Persistence of Vision Clock!!

This is a quick project video on my Hard Disk Drive Persistence of Vision Clock V2.0 or HDD PoV Clock V2.0 for short.

I created this clock out of a 2.5″ Server HDD, 2 custom designed PCBs and a lot of patience. The processor used in this clock is an STM32F411RET 32bit ARM microcontroller. I’m using WS2812B LEDs (all LEDs have their data lines connected in parallel), a DS1307 RTC for time keeping and an ESP8266 WIFI module for future features.

The Ohmmeter 2.0 displays resistor band colors

Bands on through-hole resistors conveniently indicate their value at a glance. On the other hand, you have to actually know the code to interpret this meaning. Alternatively, you could use the Ohmmeter 2.0 — developed by Miguel Alejandro Ramírez Anaya and José Miguel Galeas Merchán from the University of Málaga in Spain.

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Build a Cheap Mouse Jiggler to Keep a Computer From Falling Asleep

This guide will walk you through how to build a cheap mouse jiggler using a Digispark board.

There is a reason that your computer automatically goes to sleep and locks itself when you don’t use it for a little while, and it isn’t just to save power. It is a simple and effective way to improve security, since so few people care enough to manually lock their computer when they take their lunch breaks or leave for the night. A really easy way to circumvent that security is to keep the computer from going to sleep by tricking it into thinking the user is still there. One device that can be used to achieve that is a mouse jiggler, and this guide will walk you through how to build a cheap one using a Digispark board.

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DVD Optics Power This Scanning Laser Microscope

We’ve all likely seen the amazing images possible with a scanning electron microscope. An SEM can yield remarkably detailed 3D images of the tiniest structures, and they can be invaluable tools for research. But blasting high-energy cathode rays onto metal-coated samples in the vacuum chamber of a bulky and expensive instrument isn’t the only way to make useful images, as this home-brew laser scanning microscope demonstrates.

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Luke Wren’s PicoStation 3D Games Console Gives the RP2040 FPGA 3D Powers — or Vice Versa

As-yet untested in hardware, the PicoStation 3D is a highly flexible pairing of an RP2040 microcontroller and iCE40 FPGA.

Engineer Luke Wren has released the design files for a Raspberry Pi RP2040-powered games console dubbed the PicoStation 3D — with a Lattice Semiconductor iCE40 UP5k FPGA as a coprocessor for 3D graphics.

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Akira Kaneda’s Bike – Arduino & 3D printing

– 3D프린터와 아두이노를 이용해서 제작한 아키라 바이크 입니다.
– RC BIKE V1을 기반으로 디자인을 변경한 버전 입니다.

BLE MotorShield http://www.3demp.com/product/productD…
RC BIKE STL & Arduino code http://www.3demp.com/community/boardD…
Controller App : android : https://play.google.com/store/apps/de…
ios : https://apps.apple.com/kr/app/3demp/i…