Cycle the bluetooth connection to a device on MacOS

function.sh

# The bluetooth connection to my stereo started crackling after being connected for a while.
# Reconnecting to it solved the problem, but got annoying to do manually. 
# 
# Installation: 
# 1. Get the following dependencies 
#       * blueutil - https://github.com/toy/blueutil
#       * terminal-notifier (optional) - https://github.com/julienXX/terminal-notifier
# 2. Find the MAC address of the bluetooth device of interest using `blueutil`
#      * `blueutil --paired` 
# 3. Add the function to your .bashrc (or .zshrc, etc.)
#      * Make sure to add the address that you found to the script. 
# 4. Source the aforementioned file. 
# 5. Executing `fixstereo` should now cycle the connection with the device! 
# 
# You can then create an app using the built in Automator app which can be executed from spotlight.
# 


function fixstereo () {
	MAC_ADDRESS=>>write your mac address here<<
	connected=$(blueutil --is-connected ${MAC_ADDRESS})
	if [[ $connected -eq 1 ]]; then
		echo "Stereo is connected. Trying to cycle the connection."
		blueutil --disconnect ${MAC_ADDRESS}
		retval=$?
		if [[ $retval -ne 0 ]]; then
			terminal-notifier -title 'Could not disconnect stereo' -message 'Blueutil error code: ${retval}'
			return $retval
		fi
	fi
	
	echo "Stereo is disconnected. Let's try to connect!"
	blueutil --connect ${MAC_ADDRESS}
	retval=$?
	if [[ $retval -ne 0 ]]; then
		terminal-notifier -title 'Could not reconnect to stereo'
		return $retval
	fi

	if [[ $connected -eq 1 ]]; then
		terminal-notifier -title 'Successfully cycled the stereo connection' -message ''
	else
		terminal-notifier -title 'Successfully connected to the stereo' -message ''	
	fi
	return 0
}