5 ms·
I have been told that Burglar alarms that send SMS alerts are vulnerable to blocking devices. These are allegedly available on ebay and are already being used f
by standingstone 14y ago
I have been told that Burglar alarms that send SMS alerts are vulnerable to blocking devices. These are allegedly available on ebay and are already being used for this purpose.
- ceejayoz 14y agoThis wouldn't be vulnerable to that, as the SMS is sent via a web-based API. You'd have to block the Arduino's wifi/ethernet connection.
- ajross 14y agoThis isn't sending SMS over the radio network, it's hitting TelAPI over (presumably) the land line. A jammer would prevent the reception of the SMS at the site, which wouldn't harm this application because the whole point is that the owner is not present and needs an alarm. It is, however, vulnerable to the outrageous latency problems (minutes, often) the unofficial messaging gateways have. I send my wife texts to her company blackberry because it's convenient, but ultimately had to duplicate them to her gmail address to ensure that she got them fast enough.
- aimatt 14y agoYou're right there about the jammer. But in testing, it hasn't taken more than 20 seconds so far.
- georgieporgie 14y agoI don't think the meth addicts burglarizing my neighborhood are that sophisticated. ;-)