Skip to main content

Primer Hebocon en Barcelona. El concurso de robots absurdos más destornillante del mundo


¿Qué és y cuando se celebrará la Hebocon?

Hebocon es una competición de robots inverosímiles, creados con material reciclado, chatarra y mucha cinta americana. El día 21 de 19 a 21h, David Cuartielles, uno de los fundadores del proyecto Arduino nos explicará cómo crear todo tipo de robots tronchantes. Trae tus diseños para tunearlos o crea uno nuevo con chatarra que tengas por casa y el día 22 de 17 a 20h celebraremos la competición. El ganador conseguirá un fantástico bote de mermelada casera!!


The robotic cocktail machine. Part I: Testing the components

Hi everybody! Moises Morató and I are starting to build a robotic cocktail machine. We already know that there are a lot of amazing projects about cocktail machines on the net, but we decided to build our own cocktail machine design, only for fun.

Actually, our first goal is about building a very basic prototype to check all the components. We decided to do an iteration based project, improving the cocktail machine until we will be satifsfied with the results, and because of that, this is not a regular ‘how to’ post. We will write meanwhile we are doing it, and we encourage you to help us with your ideas and suggestions, and maybe, if you like it, you can build your own cocktail machine simultaneusly.

cocktail machine schematics (first iteration)
cocktail machine schematics (first iteration)



Creating photo mosaics with Python

A photo mosaic is a picture that has been divided into tiled sections, each of which is replaced with another photograph that matches the target photo. When first viewed seems that it’s only one image, but a close examination reveals that the image is in fact made up of many hundreds or thousands of smaller images.

In general, those mosaics are created by computer applications, in this post you will learn how to create a photo mosaic generator using python.


Arcade Bartop

How to build your own bartop arcade with Raspberry Pi

One of the ideas that many makers always think about, is to create your own retro arcade machine. Although there are many tutorials on the net, here I’ll try to make a simple but detailed explanation of all the steps needed to create your own arcade bartop machine, and I hope it can be useful for people that want to to try this amazing experience. The project itself is very easy, but thorough too.


dot-patterns opencv

Computer vision, OpenCV, Raspberry Pi, Webcams and CSI Raspicam

Before start to talk about the installation of openCV in a Raspberry Pi it’s important to clarify something:

  1. If you use a regular USB camera attached to the Raspberry Pi, the installation is basically the same as any other debian like distribution.
  2. If you use the Raspicam CSI camera, you must use UV4L (UserVideo4Linux) drivers and all will be a little bit tricky, and currently I didn’t tried yet to install the UV4L drivers to use the Raspicam CSI camera, but here are some resources about it*:

*NOTE: OpenCV works with raspicam following the instructions below (the same as the USB camera), but as far as I have been able to test, the video driver with raspicam has very low framerate and the scripts don’t run as good as with USB camera.



How to build a subjective camera robot car with Raspberry Pi & Arduino


The idea behind this project is howt build a web-based (mobile devices enabled) wireless remote controlled robot with subjective camera from scratch with Raspberry Pi & Arduino. We will use Raspberry Pi for camera, WiFi and user interface and Arduino to control servos, sensors and motors. The comunication between Raspberry Pi and Arduino will be done via GPIO serial TX/RX (/dev/ttyAMA0).

Car robot with PiCam. Prespective.
Car robot with PiCam. Prespective.

What do we need to build the robot?