First, navigate to the download page of the Teamviewer site, and follow the instructions to install the software.
1: Go to 'Systems Preferences/Systems Settings' -> 'General/Appearance'
2: Set appearance mode to 'Dark'
3: Go to 'Systems Preferences/Systems Settings' -> 'Screen Saver'
4: Screen saver = Drift
5: Screen saver = 10 min
6: Go to 'Systems Preferences/Systems Settings' -> 'Battery'
7: Display off after 20 min on battery
8: Display off after 20 min on the power adapter
9: Prevent Mac from sleeping when the display is off
10: Wake for network access
Download Arduino
1: Go to 'Tools' -> 'Board'
2: Select 'Arduino Mega or Mega 2560'
3: Go to 'Tools' -> 'Port'
4: Select the port labeled USB
5: Go to 'Tools' -> 'Serial Monitor'
6: Select 'Buad Rate' to '115200'