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Most read posts on the Robots and Physical computing Blog - March 2021

Popular posts from this blog Make yourself a virtual gallery -  March 06, 2021 This short post builds on the previous posts (below), unless you have used A-Frame before please have a look at these: WebVR playtime 1: Basics of setting up, images and rotating blocks. WebVR playtime 2: video, 360 video and objects Using Glitch  ( https://glitch.com/ ) as a web development and hosting tool. We are going to create the start of a virtual Gallery, essentially 4 rectangles that images can be posted on, a cylinder that also images can be wrapped around and the floor and the sky. To do it following is posted into the index.hml <html>  <head>     <script src="https://aframe.io/releases/1.2.0/aframe.min.js">   </script>  </head>  <body>      <a-scene>          <a-box position="-1 2 -1"  rotation="0 -30 0" color="white" depth="2"  height="4" width="0.5"...
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Initial experiments with Code Bug Connect

Code Bug has been around for a while, and it is incredibly cute, When it first came, it was a very interesting piece of kit - and it is still is and fun to play with. It spec means it is still a very useful piece of kit. 5x5 Red LED display 2 buttons 6 touch sensitive I/O pads (4 input/output, power and ground) Micro USB socket CR2032 battery holder Expansion port for I2C, SPI and UART Blockly-based online programming interface CodeBug emulator for checking code before downloading In 2020 Code Bug launched and successfully funded a Kickstarter campaign ( https://www.kickstarter.com/projects/codebug/codebug-connect-cute-colourful-and-programmable-iot-wearable ) for a new version the Code Bug - CodeBug Connect with a serious upgrade.(and the name Connect is highly appropriate with USB tethering and Wifi capability in this version. The technical specification (taken from their site https://www.kickstarter.com/projects/codebug/codebug-connect-cute-colourful-and-programmable-iot-wearable ...
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Make yourself a virtual gallery

This short post builds on the previous posts (below), unless you have used A-Frame before please have a look at these: WebVR playtime 1: Basics of setting up, images and rotating blocks. WebVR playtime 2: video, 360 video and objects Using Glitch  ( https://glitch.com/ ) as a web development and hosting tool. We are going to create the start of a virtual Gallery, essentially 4 rectangles that images can be posted on, a cylinder that also images can be wrapped around and the floor and the sky. To do it following is posted into the index.hml <html>  <head>     <script src="https://aframe.io/releases/1.2.0/aframe.min.js">   </script>  </head>  <body>      <a-scene>          <a-box position="-1 2 -1"  rotation="0 -30 0" color="white" depth="2"  height="4" width="0.5"  src="https://cdn.glitch.com/febf6408-3c33-4608-ac90-b087753e5792%2Fpanic.png?v=15...
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Most viewed post - Feb 2021 on Robots and Physical computing Blog

Click on the links in red to read more. Explaining the Tinkercad microbit Neural network In a previous post, I looked at developing a neural network in Tinkercad around the Microbit (details available here ) and the whole model ... Making a neural network in Tinkercad from Microbits Tinkercad and microbit neural network In a previous post I produced a single neuron based around microbits in Tickercad - see here . To exte... VR robot in a maze - from Blocks to Python Recently I produced a post about playing with Vex Robotics VexCode VR blocks and the Maze Playground. The post finished with me saying I w... Easy, Free and no markers Augmented Reality - location based AR For a few years, I have been a fan of Aframe and AR.js - these are fantastic tools for creating web-based Virtual and Augmented Reality.  No... Tinkercad and Microbit: To make a neuron The free online CAD (and so much more) package Tinkercad  https://www.tinkercad.com/ under circuits; now has microbits as part of...
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Build yourself a Planet - Web VR

Using Mozzila's brilliant AFrame, a web-based Virtual Reality model of a planet with rings and include a moon with an image on it. Step 1. Basic Planet The first step is to set a new site in  Glitch.com  and then add a white sphere on a black background. <html>   <head>     <script src="https://aframe.io/releases/1.5.0/aframe.min.js"></script>   </head>   <body>     <a-scene>      <a-sphere position="0 1.25 -5" radius="3" color="white" >       </a-sphere>          <a-sky color="black"></a-sky>     </a-scene>   </body> </html>     Using the Aframe 'tags' to create a white sphere and to create a black background Step 2: Rotate the planet and add some colour Now we can add a surface to the ...
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VR robot in a maze - from Blocks to Python

Recently I produced a post about playing with Vex Robotics VexCode VR blocks and the Maze Playground. The post finished with me saying I would like to play with Python and do a Python version of it. Well it is actually very easy to do it. You can do it in two stages from the block code. First click on the <> icon (lighted in the figure above and it gives a further view producing Python code that changes as you change the blocks. The last stage is to convert to a text project (button at the bottom right of the screen. Example of the code. myVariable = 0 def when_started1(): global myVariable drivetrain . drive_for ( FORWARD , 100 , MM ) while not down_eye . detect ( RED ): drivetrain . drive_for ( FORWARD , 5 , MM ) if right_bumper . pressed (): drivetrain . drive_for ( REVERSE , 30 , MM ) drivetrain . turn_for ( LEFT , 20 , DEGREES ) drivetrain . drive_for ( FORWARD , 20 , MM ) else : if l...
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