Robot Operating System Robot Operating System (ROS) is a software framework for robot software development, (see also Robotics middleware) providing operating system-like functionality on a heterogeneous computer cluster. ROS was originally developed in 2007 under the name switchyard by the Stanford Artificial Intelligence Laboratory in support of the Stanford AI Robot STAIR project. As of 2008, development continues primarily at Willow Garage, a robotics research institute/incubator, with more than twenty institutions collaborating in a federated development model. ROS has two basic "sides": The operating system side ros as described above and ros-pkg, a suite of user contributed packages (organized into sets called metapackages) that implement functionality such as simultaneous localization and mapping, planning, perception, simulation etc. Despite the importance of robot reactivity, ROS is not a realtime OS, though it is possible to integrate ROS with realtime code.
MidiDevice /* This examples shows how to make a simple seven keys MIDI keyboard with volume control Created: 4/10/2015 Author: Arturo Guadalupi <firstname.lastname@example.org> */ #include "MIDIUSB.h"#include "PitchToNote.h"#define NUM_BUTTONS 7 const uint8_t button1 = 2; const uint8_t button2 = 3; const uint8_t button3 = 4; const uint8_t button4 = 5; const uint8_t button5 = 6; const uint8_t button6 = 7; const uint8_t button7 = 8; const int intensityPot = 0; //A0 input List of Arduino boards and compatible systems This is a non-exhaustive list of Arduino boards and compatible systems. It lists boards in these categories: Released under the official Arduino nameArduino "shield" compatibleDevelopment-environment compatibleBased on non-Atmel processors Where different from the Arduino base feature set, compatibility, features, and licensing details are included. Official Arduino versions
A Better Serial.print() For Arduino In a previous article I described how to add the old-fashioned print() function to Arduino to improve debugging – after all, it gets tedious to use a separate Serial.print() function for each type – and inserting information into a string is printf’s specialty. However, while I found they did the job, they weren’t quite what I wanted. for one thing, the memory they used for the format string is in RAM, which means it contributes to ‘eating up’ the 2k memory that the ATMega328 on the Arduino has to use. Any string does this, of course, but prints can eat up string space quickly, especially if you add a lot of debugging code. Another problem when I mentioned the code to others seemed to be the waste of space for the buffer character array. However, this wasn’t a big issue, since the buffer only existed for the time the function was around – and in tight memory situations, it could be shrunk by editing the length.
Multimeters The most important debugging tool in any E.E.'s toolbox is a trusty multimeter. A multimeter can measure continuity, resistance, voltage and sometimes even current, capacitance, temperature, etc. It's a swiss army knife for geeks! Everyone always asks, "What multimeter should I get?" How to read RC Channels - The RCArduinoFastLib Background - The problem we are solving. Your Arduino can only do one thing at a time, when one interrupt occurs no others can run until the current one finishes. This can cause problems in RC Projects which use interrupts for three key functions - 1) The Servo Library uses an internal interrupt to generate the servo signals 2) The Interrupts we use to read incoming RC Signals 3) The Arduino interrupt that drives the timing functions millis() and micros()
Libraries Reference Language | Libraries | Comparison | Changes The Arduino environment can be extended through the use of libraries, just like most programming platforms. Libraries provide extra functionality for use in sketches, e.g. working with hardware or manipulating data. To use a library in a sketch, select it from Sketch > Import Library.
10 Great Intel Galileo Features Intel and Arduino’s announcement about the new Galileo board is big news. It’s a Linux-based board that I’ve found to be remarkably compatible with the Arduino ecosystem based on my first few steps with a prerelease version of the board. Here are some of the best features of this groundbreaking collaboration between Intel and Arduino: