46 lines
1.2 KiB
Ruby
Executable File
46 lines
1.2 KiB
Ruby
Executable File
#!/usr/bin/env ruby
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# encoding: utf-8
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# ruby: 1.9
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require 'serialport'
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screenlight = SerialPort.open("/dev/ttyUSB0",{ baud: 115200, databits: 8, parity: SerialPort::NONE, stop_bit: 1, flow_control: SerialPort::NONE})
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NB_LEDS = 60
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# reset arduino
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screenlight.dtr = 1
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sleep 0.5
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screenlight.dtr = 0
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sleep 0.5
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screenlight.flush_output
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screenlight.flush_input
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screenlight.baud = 115200
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puts "waiting for welcome message"
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puts screenlight.gets
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puts "moving dot"
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NB_LEDS.times do |led|
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msg = [0xff,0x00,0x00,3*NB_LEDS]+[0x00]*3*NB_LEDS
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msg[4+led*3] = 0xff
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screenlight.write msg.pack("C*") # set LED to red
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screenlight.flush_output
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sleep 0.1
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end
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puts "nice colors"
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phase = 0
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msg = [0xff,0x00,0x00,3*NB_LEDS]+[0x00]*3*NB_LEDS
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led_num = [10,9,8,7,6,5,4,3,2,1,0,11,12,13,14,15,16,17,18]+[29,28,27,26,25,24,23,22,21,20,19]+[41,42,43,44,45,46,47,48,40,39,38,37,36,35,34,33,32,31,30].reverse+[59,58,57,56,55,54,53,52,51,50,49].reverse
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while true do
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NB_LEDS.times do |i|
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led = led_num[i]
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msg[led*3+4] = (Math::sin(phase*0.9+i*0.2)+1)*128
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msg[led*3+5] = (Math::sin(phase+Math::PI/2+i*0.2)+1)*128
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msg[led*3+6] = (Math::sin(phase*1.1+Math::PI+i*0.2)+1)*128
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end
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screenlight.write msg.pack("C*")
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screenlight.flush_output
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phase += 0.025
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sleep 0.02
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end
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