hybridgroup / artoo-raspi Goto Github PK

Is it possible to run servo motor with raspi adapter? Artoo documentation (http://artoo.io/documentation/platforms/raspberry-pi/#Drivers) says it is. However I've got error running next code

require 'artoo'

# Circuit and schematic here: http://arduino.cc/en/Tutorial/Sweep

connection :raspi, :adaptor => :raspi
device :board, :driver => :device_info
device :servo, :driver => :servo, :pin => 3 # pin must be a PWM pin

work do
  puts "Firmware name: #{board.firmware_name}"
  puts "Firmata version: #{board.version}"

  servo.move(0) # reset the position of the sweep (same as servo.min)

  every(2) do
    case servo.current_angle
    when 0 then servo.center
    when 90 then servo.max
    when 180 then servo.min
    end
  end
end

Error

I, [2015-11-13T07:28:30.949952 #2363]  INFO -- : Registering connection 'raspi'...
I, [2015-11-13T07:28:30.952048 #2363]  INFO -- : Registering device 'board'...
I, [2015-11-13T07:28:30.953788 #2363]  INFO -- : Registering device 'servo'...
I, [2015-11-13T07:28:30.955761 #2363]  INFO -- : Preparing work...
I, [2015-11-13T07:28:30.969973 #2363]  INFO -- : Initializing artoo::connection raspi...
I, [2015-11-13T07:28:31.114995 #2363]  INFO -- : Initializing artoo::device board...
I, [2015-11-13T07:28:31.152516 #2363]  INFO -- : Initializing artoo::device servo...
I, [2015-11-13T07:28:31.210104 #2363]  INFO -- : Starting work...
I, [2015-11-13T07:28:31.216927 #2363]  INFO -- : Connecting to 'raspi' on port 'none'...
I, [2015-11-13T07:28:31.267642 #2363]  INFO -- : Starting driver 'Artoo::Drivers::DeviceInfo'...
I, [2015-11-13T07:28:31.269770 #2363]  INFO -- : Starting driver 'Artoo::Drivers::Servo'...
Firmware name: Raspberry Pi
Firmata version: 0.6.1
E, [2015-11-13T07:28:31.374009 #2363] ERROR -- : Actor crashed!
NoMethodError: undefined method `servo_write' for nil:NilClass
    /home/pi/.rvm/gems/ruby-head/gems/artoo-raspi-0.6.1/lib/artoo/adaptors/raspi.rb:109:in `method_missing'
    /home/pi/.rvm/gems/ruby-head/gems/celluloid-0.16.0/lib/celluloid/calls.rb:26:in `public_send'
    /home/pi/.rvm/gems/ruby-head/gems/celluloid-0.16.0/lib/celluloid/calls.rb:26:in `dispatch'
    /home/pi/.rvm/gems/ruby-head/gems/celluloid-0.16.0/lib/celluloid/calls.rb:63:in `dispatch'
    /home/pi/.rvm/gems/ruby-head/gems/celluloid-0.16.0/lib/celluloid/cell.rb:60:in `block in invoke'
    /home/pi/.rvm/gems/ruby-head/gems/celluloid-0.16.0/lib/celluloid/cell.rb:71:in `block in task'
    /home/pi/.rvm/gems/ruby-head/gems/celluloid-0.16.0/lib/celluloid/actor.rb:357:in `block in task'
    /home/pi/.rvm/gems/ruby-head/gems/celluloid-0.16.0/lib/celluloid/tasks.rb:57:in `block in initialize'
    /home/pi/.rvm/gems/ruby-head/gems/celluloid-0.16.0/lib/celluloid/tasks/task_fiber.rb:15:in `block in create'
Disconnecting all PWM pins...E, [2015-11-13T07:28:31.377007 #2363] ERROR -- : undefined method `servo_write' for nil:NilClass

What have I done wrong?

P.S. Thank you for the great gem!

Using artoo-raspi with my pi , I don't need the pin translation. In fact, it threw me off for a while. My pins match up correctly with their numbers. Why does this include the pin translation? Maybe it was a work around for an old issue that is no longer around?

I have a pi running raspbian, ruby 2.2.2 and Rails 4.2.3
I have artoo-raspi installed and can run code that reads thermo and switches leds from the consol.
ruby raspi_therm.rb does just what i expect reading and writing to pi pins.
When i try to do the same thing from within Rails
Bundler installs with out error and lists the gems
artoo 1.8.1
artoo-gpio 0.4.1
artoo-i2c 0.5.0
artoo-raspi 0.6.0

Starting rails s results in Load error: require cannot load such file -- lib/artoo/adaptors/raspi
Looking at the path in the message i can see artoo-raspi.rb which requires lib/artoo/adaptors/raspi on line one and i can also see lib/artoo/adaptors/raspi.rb

Any ideas about what is going on?
Cheers
Chris

Hi,
I'm trying out artoo for our makerspace based on a talk you guys gave at the Miami RubyConf last weekend.

Googling hasn't helped and I couldn't find a place to put this. I was hoping to eventually add mcp3008, and other i2c related code up here.

Just testing out the simple led example with the Pi https://github.com/hybridgroup/artoo-raspi

and I'm getting :

I, [2013-11-14T16:46:55.764633 #3044] INFO -- : Preparing work...
I, [2013-11-14T16:46:55.777544 #3044] INFO -- : Initializing connection raspi...
I, [2013-11-14T16:46:55.866557 #3044] INFO -- : Initializing device board...
I, [2013-11-14T16:46:55.898742 #3044] INFO -- : Initializing device led...
I, [2013-11-14T16:46:56.008247 #3044] INFO -- : Starting work...
I, [2013-11-14T16:46:56.016834 #3044] INFO -- : Connecting to 'raspi' on port 'none'...
I, [2013-11-14T16:46:56.069279 #3044] INFO -- : Starting driver 'Artoo::Drivers::DeviceInfo'...
Starting driver 'Artoo::Drivers::Led'...
Firmware name: Raspberry Pi
E, [2013-11-14T16:46:56.119757 #3044] ERROR -- : Artoo::Adaptors::Raspi crashed!
NameError: uninitialized constant Artoo::Raspi
/var/lib/gems/1.9.1/gems/artoo-raspi-0.5.0/lib/artoo/adaptors/raspi.rb:56:in version' /var/lib/gems/1.9.1/gems/celluloid-0.15.2/lib/celluloid/calls.rb:25:inpublic_send'
/var/lib/gems/1.9.1/gems/celluloid-0.15.2/lib/celluloid/calls.rb:25:in dispatch' /var/lib/gems/1.9.1/gems/celluloid-0.15.2/lib/celluloid/calls.rb:67:indispatch'
/var/lib/gems/1.9.1/gems/celluloid-0.15.2/lib/celluloid/actor.rb:322:in block in handle_message' /var/lib/gems/1.9.1/gems/celluloid-0.15.2/lib/celluloid/actor.rb:416:inblock in task'
/var/lib/gems/1.9.1/gems/celluloid-0.15.2/lib/celluloid/tasks.rb:55:in block in initialize' /var/lib/gems/1.9.1/gems/celluloid-0.15.2/lib/celluloid/tasks/task_fiber.rb:13:inblock in create'
Disconnecting all PWM pins...E, [2013-11-14T16:46:56.123695 #3044] ERROR -- : uninitialized constant Artoo::Raspi
E, [2013-11-14T16:46:56.136144 #3044] ERROR -- : ["/var/lib/gems/1.9.1/gems/artoo-raspi-0.5.0/lib/artoo/adaptors/raspi.rb:56:in version'", "/var/lib/gems/1.9.1/gems/celluloid-0.15.2/lib/celluloid/calls.rb:25:inpublic_send'", "/var/lib/gems/1.9.1/gems/celluloid-0.15.2/lib/celluloid/calls.rb:25:in dispatch'", "/var/lib/gems/1.9.1/gems/celluloid-0.15.2/lib/celluloid/calls.rb:67:indispatch'", "/var/lib/gems/1.9.1/gems/celluloid-0.15.2/lib/celluloid/actor.rb:322:in block in handle_message'", "/var/lib/gems/1.9.1/gems/celluloid-0.15.2/lib/celluloid/actor.rb:416:inblock in task'", "/var/lib/gems/1.9.1/gems/celluloid-0.15.2/lib/celluloid/tasks.rb:55:in block in initialize'", "/var/lib/gems/1.9.1/gems/celluloid-0.15.2/lib/celluloid/tasks/task_fiber.rb:13:inblock in create'", "(celluloid):0:in remote procedure call'", "/var/lib/gems/1.9.1/gems/celluloid-0.15.2/lib/celluloid/calls.rb:92:invalue'", "/var/lib/gems/1.9.1/gems/celluloid-0.15.2/lib/celluloid/proxies/sync_proxy.rb:33:in method_missing'", "/var/lib/gems/1.9.1/gems/artoo-1.4.1/lib/artoo/connection.rb:86:inmethod_missing'", "/var/lib/gems/1.9.1/gems/celluloid-0.15.2/lib/celluloid/calls.rb:25:in public_send'", "/var/lib/gems/1.9.1/gems/celluloid-0.15.2/lib/celluloid/calls.rb:25:indispatch'", "/var/lib/gems/1.9.1/gems/celluloid-0.15.2/lib/celluloid/calls.rb:67:in dispatch'", "/var/lib/gems/1.9.1/gems/celluloid-0.15.2/lib/celluloid/actor.rb:322:inblock in handle_message'", "/var/lib/gems/1.9.1/gems/celluloid-0.15.2/lib/celluloid/actor.rb:416:in block in task'", "/var/lib/gems/1.9.1/gems/celluloid-0.15.2/lib/celluloid/tasks.rb:55:inblock in initialize'", "/var/lib/gems/1.9.1/gems/celluloid-0.15.2/lib/celluloid/tasks/task_fiber.rb:13:in `block in create'"]

Firmata version:

Hey,

So I have picked up that the raspi_pins are not being cleaned up along with pwm_pins in the raspi achor

see code below

def disconnect
  puts "Disconnecting all PWM pins..."
  release_all_pwm_pins
  super
end

I believe the following should be added to sort out the error above

def disconnect
  puts "Disconnecting all PWM pins..."
  release_all_pwm_pins
  puts "Disconnecting all Raspi pins..."
  close_all_raspi_pins
  super
end

# new method
def close_all_raspi_pins
  pins.each_value { |pin| pin.close }
end

Hope this is all in order, please also see the error stack

/home/pi/.rvm/gems/ruby-2.2.1/gems/artoo-1.8.1/lib/artoo/adaptors/io/digital_pin.rb:16:in close
/home/pi/.rvm/gems/ruby-2.2.1/gems/artoo-1.8.1/lib/artoo/adaptors/io/digital_pin.rb:16:in open
/home/pi/.rvm/gems/ruby-2.2.1/gems/artoo-1.8.1/lib/artoo/adaptors/io/digital_pin.rb:16:in initialize
/home/pi/.rvm/gems/ruby-2.2.1/gems/artoo-raspi-0.6.1/lib/artoo/adaptors/raspi.rb:120:in new
/home/pi/.rvm/gems/ruby-2.2.1/gems/artoo-raspi-0.6.1/lib/artoo/adaptors/raspi.rb:120:in raspi_pin
/home/pi/.rvm/gems/ruby-2.2.1/gems/artoo-raspi-0.6.1/lib/artoo/adaptors/raspi.rb:87:in digital_write
/home/pi/.rvm/gems/ruby-2.2.1/gems/celluloid-0.16.0/lib/celluloid/calls.rb:26:in public_send
/home/pi/.rvm/gems/ruby-2.2.1/gems/celluloid-0.16.0/lib/celluloid/calls.rb:26:in dispatch
/home/pi/.rvm/gems/ruby-2.2.1/gems/celluloid-0.16.0/lib/celluloid/calls.rb:63:in dispatch
/home/pi/.rvm/gems/ruby-2.2.1/gems/celluloid-0.16.0/lib/celluloid/cell.rb:60:in block in invoke
/home/pi/.rvm/gems/ruby-2.2.1/gems/celluloid-0.16.0/lib/celluloid/cell.rb:71:in block in task
/home/pi/.rvm/gems/ruby-2.2.1/gems/celluloid-0.16.0/lib/celluloid/actor.rb:357:in block in task
/home/pi/.rvm/gems/ruby-2.2.1/gems/celluloid-0.16.0/lib/celluloid/tasks.rb:57:in block in initialize
/home/pi/.rvm/gems/ruby-2.2.1/gems/celluloid-0.16.0/lib/celluloid/tasks/task_fiber.rb:15:in block in create

I believe the error is being caused because the pins are not being shutdown correctly when an adaptor is destroyed or discarded. But I could be wrong, if this is not a bug or issue. Please do you mind guiding me in the right direction to how one gets around this or if there is known fix already

Thanks