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ev3dev_ruby
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ev3dev_ruby
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# ev3dev ruby binding for LEGO Mindstorms EV3 ev3dev_ruby is a gem to controll sensors and motors on EV3 using Ruby. - [ev3dev](http://www.ev3dev.org) version; ev3dev-jessie-2015-12-30 or later ## Install ev3dev_ruby on EV3 SSH remote access to the EV3 from PC (default ev3dev user; robot, password; maker) ``` $ ssh robot@ev3dev.local ``` then ``` robot@ev3dev:~$ sudo gem install ev3dev ``` ## Run examples ### 1\. Copy the examples to the **/home/robot** directory in ev3dev from PC. (for OS X user; ) ``` $ scp -r /Users/xxx/Downloads/ev3dev_ruby-master/examples robot@ev3dev.local:/home/robot ``` ### 2\. Run the program There are two different ways to run the program. #### A. Remote access from PC ``` robot@ev3dev:~$ cd /home/robot/examples robot@ev3dev:~$ cd motor robot@ev3dev:~$ ruby midiummotor.rb ``` #### B. File Browser on EV3 ##### 1. Add execute permission ``` robot@ev3dev:~$ cd /home/robot/examples robot@ev3dev:~$ cd motor robot@ev3dev:~$ ls -l ... -rw-r--r-- 1 robot robot 474 Jan 18 16:18 midiummotor.rb ... robot@ev3dev:~$ chmod +x midiummotor.rb robot@ev3dev:~$ ls -l ... -rwxr-xr-x 1 robot robot 474 Jan 18 16:18 midiummotor.rb ... ``` ##### 2. File Browser Select the program and push the center button on EV3. ## irb You can also run programs using irb. ``` robot@ev3dev:~$ irb irb(main):001:0> require 'ev3dev' => true irb(main):002:0> mm = Ev3dev::Motor.new 'B' => #<Ev3dev::Motor:0x193890 @device_path="/sys/class/tacho-motor/motor0"> irb(main):003:0> mm.device_path => "/sys/class/tacho-motor/motor0" irb(main):004:0> mm.driver_name => "lego-ev3-l-motor" irb(main):005:0> mm.address => "outB" irb(main):006:0> mm.commands => "run-forever run-to-abs-pos run-to-rel-pos run-timed run-direct stop reset" irb(main):007:0> mm.stop_commands => "coast brake hold" irb(main):008:0> mm.duty_cycle_sp 100 => #<Ev3dev::Motor:0x193890 @device_path="/sys/class/tacho-motor/motor0"> irb(main):009:0> mm.command 'run-forever' => #<Ev3dev::Motor:0x193890 @device_path="/sys/class/tacho-motor/motor0"> irb(main):010:0> sleep 3 => 3 irb(main):011:0> mm.command 'stop' => #<Ev3dev::Motor:0x193890 @device_path="/sys/class/tacho-motor/motor0"> irb(main):012:0> ``` ## ev3dev API (Also checkout examples) ### [Motors](http://www.ev3dev.org/docs/motors/) - [EV3 Medium Servo Motor](http://www.ev3dev.org/docs/motors/lego-ev3-medium-servo-motor/) - [EV3 Large Servo Motor](http://www.ev3dev.org/docs/motors/lego-ev3-large-servo-motor/) - [Tacho Motor Class API](http://www.ev3dev.org/docs/drivers/tacho-motor-class/) - [Tacho-Motor Class Tutorial](http://www.ev3dev.org/docs/tutorials/tacho-motors/) ### [Sensors](http://www.ev3dev.org/docs/sensors/) - [EV3 Touch Sensor](http://www.ev3dev.org/docs/sensors/lego-ev3-touch-sensor/) - [EV3 Color Sensor](http://www.ev3dev.org/docs/sensors/lego-ev3-color-sensor/) - [EV3 Gyro Sensor](http://www.ev3dev.org/docs/sensors/lego-ev3-gyro-sensor/) - [EV3 Ultrasonic Sensor](http://www.ev3dev.org/docs/sensors/lego-ev3-ultrasonic-sensor/) - [LEGO Sensor Class API](http://www.ev3dev.org/docs/drivers/lego-sensor-class/) ### EV3 Devices - [Battery](https://github.com/ev3dev/ev3dev/issues/68) - [Sound](https://github.com/ev3dev/ev3dev/wiki/Using-Sound) - [aplay (ALSA sound driver)](http://linux.die.net/man/1/aplay) - [espeak (speech engine)](http://espeak.sourceforge.net/commands.html) - [LEDs](https://github.com/ev3dev/ev3dev/wiki/Using-the-LEDs) - [LED Transient Trigger](https://www.kernel.org/doc/Documentation/leds/ledtrig-transient.txt) - Original Led Class APIs are added. Checkout examples. - [Buttons](http://www.ev3dev.org/docs/tutorials/using-ev3-buttons/) #### These EV3 devices below are not supported yet. - [LCD](http://www.ev3dev.org/docs/tutorials/using-ev3-lcd/) - [Bluetooth](https://github.com/ev3dev/ev3dev/wiki/Using-Bluetooth) ## More Info - [Getting Started with ev3dev - ev3dev.org](http://www.ev3dev.org/docs/getting-started/)
