Created
September 2, 2012 18:17
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Script that checks for presence of a specific bluetooth device
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require 'open3' | |
def log s | |
p Time.now.to_s + " #{s}" | |
end | |
def is_device_there?(mac_addr) | |
exit_status = -1 | |
Open3.popen3("sudo l2ping -c1 -v #{mac_addr}") do |stdin, stdout, stderr, wait_thr| | |
exit_status = wait_thr.value | |
end | |
exit_status.to_i == 0 | |
end | |
def hello_handler | |
log "Hello!" | |
end | |
def goodbye_handler | |
log "Goodbye!" | |
end | |
def poll_device_status(mac_addr) | |
device_was_there = false | |
loop do | |
device_is_there = is_device_there? mac_addr | |
hello_handler if device_is_there and not device_was_there | |
goodbye_handler if not device_is_there and device_was_there | |
device_was_there = device_is_there | |
sleep 30 if device_is_there | |
end | |
end | |
log "Started." | |
poll_device_status "14:5A:05:5C:A8:B4" |
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