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Annex 1: Networking Between a Robot and a Desktop Computer

ROS makes it relatively easy for multiple machines to view the same set of topics, services and parameters. This
is particularly useful when your robot's onboard computer is not very powerful since it allows you to run the more demanding processes such as RViz on your desktop.

Time Synchronization

import time

The Raspberry Pi does not have an internal clock, so it should rely on internet server to keep the time synchronized.

[MEETUP #5] Ciclo de robótica con Raspberry Pi (2/4). Simulando robots con ROS

Simulador Gazebo

Tras la sesión introductoria del pasado 7 de junio, pasamos a presentar 2 herramientas que incorpora ROS para la simulación de robots. Su ventaja es que podemos explorar el comportamiento del robot antes de haberlo fabricado, lo cual nos ayudará a depurar nuestro diseño y acortar los plazos de desarrollo.

En concreto, presentaremos 2 herramientas:

Annex 1: INSTALLING UBUNTU TRUSTY 14.04 IN RASPBERRY PI 2

Initial setup process is documented here:

https://wiki.ubuntu.com/ARM/RaspberryPi

The downloaded image is Ubuntu Trusty 14.04-2. At the of the process we will upgrade it to distribution 14.04-3

Follow the key steps for the installation:

(1) Root resizing. There are no Raspbian-specific utilities included, specifically no automatic root resizer. However, it's not hard to do manually. Once booted:

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