With only 4 colors, the original Nintendo Game Boy was capable of some amazing things. Here is how the graphics subsystem – known as the PPU or Pixel Processing Unit worked
Technology
Build Yourself a Tiny Macintosh Mini Linux Console
The original Apple Macintosh computer was released way back in 1984, and garnered quite a lot of buzz. That wasn’t just because of the now-legendary launch commercial that was inspired by George Orwell’s Nineteen Eighty-Four, but also because it was the first mass-market personal computer with a GUI (Graphical User Interface) and a mouse. Considering Apple’s current megalithic tech presence, the original Macintosh has quite the cult following.
Now you can make your own tiny Mac(intosh) Mini Linux console.
Can a Raspberry Pi be used as an Arduino? || RPi GPIO Programming Guide 101
In this video I will show you how to use the C and Python programming language in order to control the GPIOs of a Raspberry Pi. Along the way I will demonstrate for what projects the Raspberry Pi can be used and when you should rather use an Arduino instead.
Use a Raspberry Pi to Make a Police Scanner Radio
It might surprise you to learn that it is completely legal to listen to official police scanner radio transmissions in the United States. There is even a hobbyist community dedicated to exactly that, which is full of people who find it interesting to hear what the police are up to as they go about responding to crimes and other dispatches. Some states do have a couple of limitations, such as listening while driving or while committing a crime. But as long as you’re just listening at home, it’s legal in every state. If you want to do that yourself, YouTuber Kevin Darrah has a guide on how to use a Raspberry Pi to build an inexpensive police scanner.
Bending Thick Steel with 3D Printed Tools – Prusa PLA
The strongest tools from this video were printed with a Prusa i3 MK3s using standard PLA. I printed 12 perimeters with 20% gyroid infill at 0.2mm layer height. If you’re interested in reading about what experts in the field have to say about this, check out these two articles:
The Jaw-Dropping Perks Of 3D Printed Press Brake Tooling: https://www.e-ci.com/ci-stories/2019/…
Need a custom press brake tool? Try printing it: https://www.thefabricator.com/additiv…
Tabletop Japanese Shoji Lanterns
New versions of the Japanese mini lamps I made a while ago. Frame and dimensions are almost the same, but I have added a USB LED lighting circuit so they can be lit from any laptop, phone charger etc and placed on a desk or any suitable space.
Screaming Pumpkin 3h DIY project [Arduino, ESP32, RGB, Audio, PIR]
In this quick maker project the pumpkin gets some basic electronics that have some animated RGB LED lights a motion detection sensor and sound. It detects if trick-or-treaters are approaching the house and plays a scary scream and flashes the lights. It’s really rewarding for such a quick projects that can be built easily with kids. All is controlled by the esp32 microcontroller that can be uploaded with the code linked below from the Arduino IDE. All the other parts are simply attached without much effort. The electronics can be easily applied to other Holiday projects. Have Fun!
97% Efficient DC to DC Buck Converter [3A, Adjustable]
A tiny DC to DC buck converter board is useful for many applications, especially if it could deliver currents up to 3A.
Raspberry Pi 4 Gets an Update
The Raspberry Pi 4 is arguably the best piece of hardware ever released by the Raspberry Pi Foundation. Looking at the specs and different Ram options it is easy to see why the Raspberry Pi 4 is head and shoulders above the other Raspberry Pi boards. The Raspberry Pi 4 was not without issues however but in the normal fashion, the Raspberry Pi Foundation has been hard at work fixing those issues through software and firmware updates.
The Raspberry Pi Foundation this week released updated firmware for the Raspberry Pi 4 which has been in testing since July. This new firmware helps the Raspberry Pi 4 run cooler and adds a network boot option.
