Arduino

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Revision as of 23:48, 27 June 2012 by Quozl (talk | contribs) (→‎12.1.0)
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Installing the Arduino IDE on OLPC OS.

12.1.0

Switch to the GNOME desktop. This is because the application has been tested with GNOME, and not with Sugar.

Packages

In Terminal: 

sudo yum install -y arduino

Roughly 40 MB of packages are downloaded and installed.

Fix Access

The IDE requires that the user be a member of the lock group. See also <trac>11972</trac>.

This fix also restarts GNOME, so that the membership change is effective.

In Terminal: 

sudo groupmems --group lock --add olpc && \
   sudo systemctl restart prefdm.service

Choose a larger font

The default font is small.

  • Applications -> Programming -> Arduino,
  • File -> Preferences,
  • Editor font size to 18, OK.

Testing

  • start Applications -> Programming -> Arduino,
  • connect Arduino board,
  • choose Tools -> Board entry, e.g. Arduino Uno,
  • choose Tools -> Serial Port entry, e.g. /dev/ttyACM0,
  • choose File -> Examples -> Basics -> Blink,
  • choose Upload to send the program to the Arduino board,
  • see LED flashing.

Firmata

Firmata is a generic protocol for a computer to communicate with microcontrollers. The Sugar Labs Turtle Art activity included in OLPC OS builds supports Firmata 2.1 or later, and can use an Arduino board as a general purpose analog and digital I/O interface.

The Arduino board must be programmed with StandardFirmata, using the Arduino IDE:

  • start Applications -> Programming -> Arduino,
  • connect Arduino board,
  • choose File -> Examples -> Firmata > StandardFirmata,
  • choose Upload to send the program to the Arduino board.

References

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