In this project it is presented 1-dimensional version of the classic game ‘Pong’ made with NeoPixel LED strip. The game is for 2 players, in which the ‘ball’ the travels down the length of the LED strip, and will bounce back if the button is pressed when few end LEDs are illuminated.
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.
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.
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.
– 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…
The new ESP32 has three cores. Two of them are very fast; the third is ultra-low power.
The Arduino IDE typically only uses one of the fast cores. Today:
– We will take full advantage of the second core of the ESP32
– We will test if it really increases the capacity of our microprocessor
– We will also compare its dual-core speed with the speed of an Arduino UNO
– We will try to synchronize tasks, even if they run on two different cores
– We will also try to use the same data on both cores
– These two mechanisms are mandatory if you want to use the two cores in a productive fashion
– And we will not leave the Arduino IDE. Promised
If you’ve ever used audio software on the computer, you probably know that MIDI exists: a signalling protocol that allows controllers to control virtual instruments like synths. It’s also the protocol used by real audio hardware to talk to each, and you can think of it as the language in which, rathar than communicating a fluctuating voltage signal or series of discrete sample values, devices talk about what is being done on them (“A4 got pressed”, “F4 got released”, “the mod wheel moved down”, etc).
Christopher Getschmann wanted a wall-sized map of the world. He soon realized, however, that it’s tough to actually buy such a map that’s both beautiful and detailed enough to satisfy his cartographic tastes. While many would simply move on to the next “thing,” Getschmann instead took things into his own hands, and built a pen plotter specifically to draw a massive 2×3 meter map for his wall.
If you live in a house with stairs and have to traipse up and down at night, it’s best to have some sort of light that guides you. Although a cell phone can work just fine, or you could likely activate bright overhead lighting, creator MagicManu devised an automatic and progressive solution to illuminate his path instead.
MagicManu’s system knows when someone is there using PIR sensors arranged at both ends, and only activates if it’s dark enough thanks to a photoresistor. The entire setup is controlled by an Arduino Nano, while two potentiometers adjust light sensitivity and duration of ignition.
According to the incredible success of it’s initial crowdfunding round, most of the internet seemed to have gotten wind of the Flipper Zero back when we covered the kick-off of the Kickstarter, some 6 months ago.
This slick, fine-looking device is touted as a digital Swiss Army knife of sorts — an open hardware platform with peripherals chosen to enable it to poke, probe, and prod nearly every physical interface you are likely to see in a commercial, consumer-grade product.
Designed to get you some insight on your wireless smart light, or reveal the hidden detail of an IrDA transmission, it’s a portable pentesting tool for the discerning hardware “phreaker” on the move.
