I use Coastal Explorer (CE) on Win7 and Win10 laptops, and would like to know how to interface the alarm on CE to an external alarm - e.g., trigger a relay that can in turn trigger a bell, horn, piezo buzzer, etc. It strikes me that this is mostly a hardware question - I do not know enough about computers to understand how CE’s low beeping of the laptop speaker when, say, the GPS data dies, could be used to trigger an external relay.
Any suggestions or ideas on how to do this would be greatly appreciated.
My intention is to use a small 12vDC fire bell as the alarm - completely unlike any other noise on the boat.
- rob macfarlane