Here is a simple general-purpose security alarm circuit built on the Arduino platform. It brings up an obtrusive alert signal when an intrusion/theft attempt is observed by its front-end sensor. In ...

Abstract: Many limited spaces, such as offices, laboratories and organizational rooms, are found to utilize conventional keys for security, subsequently emphasizing a factor regarding the cases of ...

[yoyotechKnows] built an Alexa-controlled garage door opener after his Liftmaster stopped working. Now all he has to do is holler at his mobile phone and he can raise and lower his garage doors at ...