Personal Blog of

In-garage delivery and alarms

So I've recently set up my alarm system to work with my home automation and with my
security company. It works really well, and I'm delighted by the results.

Here's one problem, though. I like in-garage deliveries from Amazon, and I'd like to
automatically disarm the garage partition when the delivery driver operates the garage
door opener. And then re-arm the partition once the delivery driver leaves (of course,
if the main partition is still armed).


First, I looked at doing everything using software only. I have an Envisalink card connected
to my DSC alarm, so writing a HomeAssistant automation is fairly straightforward. I just

Ratgdo wiring

Assembling the synchronizer

Placing everything on a panel

Terminal blocks



Arduino programming


#dsc #homesetup