RaspberryPi Archives - Page 5 of 31

Hand Gesture Recognition Raspberry TensorFlow

June 17, 2021 by CrackedConsole

Hand gesture recognition based on Raspberry Camera and TensorFlow. All the steps are described from the dataset creation to the final deploy.

The idea behind this project is to create a device able to drive an actuator based on the gesture of the hand’s fingers.

The project is specialized on recognizing streaming images of the hand taken by the raspberry-pi camera.

The data set of the images used to train the model was created ad hoc with images taken from the Raspberry Camera only (not other devices) with a neutral background.

The model is based on the transfer learning of the Inception v3 model, customized to handle the project requirements. The last layer was removed from the Inception v3 model and a few layers were added to be customized with the new dataset and to provide the output for just four cases.

The model was trained with the images collected and pre-classified earlier on a desktop (32 Gb ram + GPU). Once the model was trained and tested, it was exported to the Raspberry Pi.

Here’s what happened when a Tesla owner built a robot to plug in his car

June 16, 2021 by CrackedConsole

A Tesla owner built a robot to automatically plug his electric car for overnight charging — something that Tesla has previously announced that it is working on.
Here’s what happened.

The idea of automatically charging electric vehicles have been around for a while.
It seems to have emerged from the idea that electric vehicles are not as convenient to charge as gasoline-powered vehicles are to fuel.
This is not exactly true.

Electric vehicles can be charged overnight at home, which makes them way more convenient than gas-powered cars.
The only aspect that can be seen as less convenient is the charge time versus refueling time when on the go.

Bobby Towers’ Trochee Is a Parameterized, 3D-Printable, Raspberry Pi Pico-Powered One-Hand Keyboard

May 27, 2021 by CrackedConsole

Designed for accessibility, this Clojure-based project can be tweaked for your individual requirements.

Developer Bobby Towers has shown off two 3D-printed keyboards with a difference: These multi-colored marvels are designed for one-handed use, and powered by a Raspberry Pi Pico.

“There are many reasons and situations where one would find themselves without use of one or both of their hands. Injuries, disabilities, child-rearing, and probably countless others I haven’t thought of,” Towers explains of the reason for switching from a traditional two-handed keyboard layout to one more usable with a single hand. “Usually though, unless the reason is permanent, it is not worth the monetary investment to justify a $400-$1000 Maltron [single-handed] keyboard. I think this is a major problem, and if there were a cheaper option, more people would enjoy a more productive lifestyle while in these compromised situations.”

Raspberry Pi Used to Build Beautiful Music Table

May 20, 2021 by CrackedConsole

Redditor Dtphantom used a Raspberry Pi to build this awesome “music table” that is reminiscent vintage stereo consoles.

Back before smartphones, video games, and even TVs, families would gather around the stereo to listen to music and radio dramas. Stereos from that era were often built into large pieces of furniture, called consoles. They would usually be the centerpiece of a room, in the same way that we mount our TVs as the focal point of living rooms today. Stereo consoles are rare now, since music players and speakers have become miniaturized. But some people still like to focus on the music, which is why Redditor Dtphantom used a Raspberry Pi to build this awesome “music table” that is reminiscent of those vintage stereo consoles.

Pi-KVM – Open and cheap DIY IP-KVM on Raspberry Pi

May 19, 2021 by CrackedConsole

A very simple and fully functional Raspberry Pi-based KVM over IP that you can make with your own hands without any soldering!

This device helps to manage servers or workstations remotely, regardless of the health of the operating system or whether one is installed. You can fix any problem, configure the BIOS, and even reinstall the OS using the virtual CD-ROM or Flash Drive.

It only costs between $30 and $100 depending on the features desired. Even the most expensive configuration will be cheaper than a $500 commercial IP-KVM.

This Quad-Screen Raspberry Pi Cyberdeck Is the Best Kind of Overkill

May 19, 2021 by CrackedConsole

Multi-monitor setups are commonplace among desktop computer users, but, with very few exceptions, manufacturers limit portable devices to just a single measly screen. There are a couple of dual-screen laptops on the market and there have been handful of cell phones with more than one screen, even going back to the dark ages of dumb phones. But Redditor Holistech must have laughed in the face of those devices when they built this crazy quad-screen Raspberry Pi cyberdeck, which is the best kind of overkill.

The Arduino Nano RP2040 Connect is here

May 18, 2021 by CrackedConsole

It was back in January that we first introduced you to the Arduino Nano RP2040 Connect. The first Arduino board to include Raspberry Pi silicon. It’s been a roller coaster ride getting it to you, and enthusiasm during the wait has been incredibly encouraging. The wait, you’ll be glad to hear, is over.

The RP2040 Processor

Working with the Raspberry Pi Foundation is nothing short of a pleasure. The teams there make some incredible devices, and their first in-house silicon is no exception. These guys get it.

This system-on-a-chip is a 32-bit dual-core Arm Cortex-M0+ microcontroller, clocked at 133MHz and is powerful enough to run TensorFlow Lite. It’s young, but proving to be incredibly popular with makers, as well as electronics manufacturers. It’s going to be incredibly exciting to see how the Arduino community reacts to it. We can only imagine what you guys can achieve with the extra features of the Nano RP2040 Connect board.

Adafruit Designed an RP2040-Based Development Board Specifically for Custom Keyboards

May 13, 2021 by CrackedConsole

The fine folks at Adafruit have just designed a new RP2040-based development board that is perfect for custom keyboard builds, the KB2040.

To many people, computer keyboards are appliances and nothing more — like a toaster or an alarm clock. But there are a lot of us who take our keyboards very seriously. We care about the feel of our key switches and the layout of the keys. To accommodate our tastes, we can either purchase a purpose-built mechanical keyboard or build one ourselves. If you want to go the latter route, then you will need a microcontroller to monitor your keyboard matrix and send key presses to your computer. To make the new RP2040 microcontroller accessible to keyboard builders, Adafruit has designed a new development board with the Arduino Pro Micro form factor.

DIY SDR DSP Radio with Raspberry Pi and RTLSDR Dongle

May 7, 2021 by CrackedConsole

The radio presented above is capable of receiving the entire spectrum, from 500 kHz to 2 Gigahertz.

Software-defined radio (SDR) is a radio communication system where components that have been traditionally implemented in hardware (e.g. mixers, filters, amplifiers, modulators/demodulators, detectors, etc.) are instead implemented by means of software on a personal computer or embedded system.

This Futuristic-Looking Cyberdeck Features a Stretched LCD

May 5, 2021 by CrackedConsole

Redditor Midknight8008 built this awesome cyberdeck prototype that features a stretched bar-style LCD.

The origin of the cyberdeck community is in replicating the fictional computers from William Gibson’s Sprawl trilogy. But these days, the community is less concerned with that specific aesthetic and more interested in building unique computers. The only rules that tie the community together are that the builds need to be portable and completely custom. Members of the community get to show off the computers that would otherwise exist only in their imagination. Redditor Midknight8008 must have a great imagination, because they designed and built this futuristic-looking cyberdeck that features a stretched LCD.