farmbot-serial is a component used by the Farmbot Raspberry Pi. If you are just trying to install a FarmBot, you do not need to use this. This component will be auto installed when you install the Raspberry Pi Controller.
If you are a developer looking to work directly with the FarmBot serial interface, you're in the right place.
A ruby gem for controlling Farmbot via serial line with EventMachine.
git clone https://github.com/FarmBot/farmbot-serial.git
cd farmbot-serial
ruby console.rb
From there, you can type commands, such as:
move_relative x: 100
All REPL commands will be executed within the context of bot.commands.
gem install farmbot-serial, '0.7.6'
require 'eventmachine'
require 'farmbot-serial'
bot = FB::Arduino.new # Defaults to '/dev/ttyACM0', can be configured.
EM.run do
FB::ArduinoEventMachine.connect(bot)
# Example 1: Writing to the serial line the "correct way" every 1.5 seconds.
EventMachine::PeriodicTimer.new(1.5) do
bot.commands.move_relative(x: 100, y: 50)
end
# Example 2: Writing raw gcode object to serial every 2.5
EventMachine::PeriodicTimer.new(2.5) { bot.write FB::Gcode.new("F31 P8") }
# This will execute after status has been updated / internal code.
bot.onmessage { |gcode| puts "Message just came in." }
# Try pulling the USB cable out to test this one.
bot.onclose { puts "bye!"; EM.stop }
endThis gem requires Ruby 2.2. As of this writing, a Pi is loaded with 1.9.3 by default.
To upgrade your ruby version, try this:
curl -L https://get.rvm.io | bash -s stable --ruby
This will take about 25 minutes on a pi3 and 2 hours on a pi2.