@Baassievalk
After much googling, the answer is here:

https://stackoverflow.com/questions/21659637/how-to-fix-sudo-no-tty-present-and-no-askpass-program-specified-error

and in particular this comment

username ALL = NOPASSWD: /fullpath/to/command, /fullpath/to/othercommand

In my setup I created a file called /etc/sudoers.d/010_cmdswitch2
And the file contains

homebrid ALL = NOPASSWD: /bin/chvt

chvt is the command I need to run, and homebrid is the account I use to run my homebridge with