We've shown you before that home alarm systems don't have to be expensive. To prove that point even further over on Medium, Alex Nikolaidis shows off how to make a cheap home alarm system with a ...
A Dropcam will run you about $150. Price out a Raspberry Pi, camera sensor, and a CCTV camera housing found on eBay, and it starts to look like there may be a cheaper replacement for a Dropcam sitting ...