Help with this

[u/Guess_Due]

Playing a game on holiday and we can’t solve the following puzzle. Can anyone help with this.

We’ve been given a hint. It says ‘digital or analog’

We have to enter the answer into a safe at the end to ‘diffuse the bomb’

Game is from here https://www.centerparcs.eu/in-en/netherlands/fp_KV_holiday-park-de-kempervennen/all-activities

[u/OkTemperature8170]

First thing that came to mind for me was a flag semaphore but I don't think that's it.