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Single-Board Computers

146 posts
Introduction The PocketBeagle single board computer (SBC) is really tiny. Apart from the size, there are lots of similarities with the larger BeagleBone Black, and there are also some differences.   In terms of performance, it is identical. It has the same amount of memory, and runs using the same processor and the same Linux image too!   To get the size down, it is of course missing many connectors but a lot of functionality within the main chip is brought out onto the two 36-way ...
Introduction History How is it used for GPIO? Isn’t there some Stinkyness with Device Tree or Overlays? How to Install the Library? How Fast is it? How is SPI used? Adding Another SPI Interface (SPI 1) How is I2C used? Which pins can I control with the GPIO, I2C and SPI functions? What Doesn’t Work? I Need More Pins PocketBeagle Specifics SPI with the PocketBeagle I2C with the PocketBeagle Summary   Introduction Thi ...
Introduction What Do You Need? What Software is Needed? Creating the Micro SD card First Boot Powering Off and On Configuring Linux Creating a Superuser Password Changing the default debian user password Creating a New User Increasing the micro SD Partition Size Connecting to a Wireless Network Connecting to Ethernet Problems? Use the Serial Console Summary   Introduction This blog post describes how to get the BeagleBone Black (or ...
Introduction   On its surface, this is a simple question and chances are, if you’re already reading this, you’re smarter than the average electronically inclined bear and already know the answer. For those of you who are still getting a handle on the basics, let’s dive into the details.   What is a Microprocessor?   Like a brain to a body, a microprocessor is an integral part of any computer system. You can separate the two for sure, but they’re not all ...
Introduction     While it might be tempting to lump Single Board Computers (SBC’s) and Dev Boards together, as many retailers do for the sake of convenience, SBCs and Dev Boards have distinct roles and functionalities which separate them. Here’s how to tell the two apart and decide which board, or combination of the two (there are no rules!), will be right for your next project or mass-market, whizzbang IoT gadget:     What is an SBC?   Lower cost, lower pr ...
Introduction:      FreeBSD is a "UNIX like" opensource operating system. Not like Linux, which provides only the kernel, FreeBSD provides full fledged - fully equipped operating system. The history of the operating system dates back to 1993. And it is the most popular BSD (Berkeley Software Distribution) based operating system available in the open source community.   I would recommend you to read the history of FreeBSD a little. Links are available here: https://en. ...
Rice farmers in Asia have always used ducks to keep their plants pest-free, acting as a healthier, natural solution to pesticides. Ducks work in rice fields by waddling around flooded areas, rooting out weeds and devouring insects. Their manure is an added bonus too, providing fertilizer for farmers. Nowadays, times are changing, and with recent technological advancements, ducks will no longer be a necessity for farmers to rely on. Their prowess could eventually be replaced by robots. Named af ...
Introduction The NVIDIA Jetson Nano is a compact board approximately 70x45mm in size, with a large heatsink : ) It's got a very powerful microchip, the NVIDIA Tegra X1, which contains four ARM applications processor cores, as well as 128 graphics processing units (GPU). GPUs are used for more than graphics purposes, because it turns out that some of the interesting applications for computers today, to do with neural networks, which can be used to recognise patterns with ever increasing accuracy, ...
Scientists have designed and developed a robotic shrimp that's eerily similar to the pistol shrimp. The pistol shrimp is just a few inches in length and has a massive claw that is so strong it can knock out its prey with the shockwave when the claw snaps. Once the claws come together, bubbles develop, collapse and shoot out a bolt of plasma that creates a flash of light with temperatures reaching 8,000 degrees Fahrenheit. Researchers explain how they designed a robotic claw inspired from the pis ...
Hot Wheels has always been great at giving users the virtual experience for the past few years when it comes to toy cars. Their toys like Hot Wheels AI, Mindracers and Augmoto all have been focused on making it a driving experience that is  played like a video game. This year, Hot Wheels has finally created something that will please their fans - the new TechMods set. The vehicle is controlled by an app, and you build the vehicle yourself and which can be controlled with your phone. The pro ...
I'm looking for  a $1 single board computer or controller that can control 60 LEDs, a buzzer, 2 three digit seven segment displays and one buzzer.  This controller must be acurate to a second. is there such a controller?  Is there a controller or a group of components in this cost range? ...
Introduction I recently needed a small form-factor computer and I was lucky enough to get given an Intel NUC (model NUC7i3DNKE) as part of my work. I thought I’d take some photos of it as I explored it.   My primary use-case will be to use it for demos. It is very small so it can be taken with me when I travel. However, there are other uses planned for it too.   In the drive for a silent environment to work in, I hardly ever turn on the desktop PC. The laptop works fine for m ...
NASA to send robotic bees to Mars in an attempt to study the planet further. The space agency has implemented this idea ahead of sending humans to our neighbor planet. The image shows a concept of how Marsbees would work. (Photo via NASA)   What’s the next step after Mars rovers? Swarms of robots!   Dubbed “Marsbee,” a swarm of robotic bees are being planned to boost and support a central rover. The rovers have some limited capacities in their technology, but that ...
colonel_dirty

Raspberry Pi 3

Posted by colonel_dirty Mar 10, 2018
Salutations I am a student at Northern Arizona University,       I am currently a participating in a robotics competition. I have a degree in Mechanical engineering and I am currently pursuing a second degree in computer science. The robot we are making for the competition is a soccer playing robot this is my first time doing programing like this. I have an understanding in Python and Java. We are using a Raspberry Pi 3 for the brains of the robot. I have installed Ras ...
Introduction The Leap Motion Controller is something that can be used as an input device for a computer (desktop/laptop or a single board computer). It can be placed on the desk, or if desired can be strapped onto a virtual reality (VR) headset if you have one. In brief, when it sees your hand or hands, it can analyse them to figure out where your fingers, palms and so on, are in three dimensional space. It can also figure out certain movements such as swipes. You could use it for controlling st ...

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