[BlackCow] came up with a simple solution to this problem ... Now, instead of having an alarm that sounds as soon as the door is open, he has a 30 second delay. This helps avoid the “boy ...

There’s no audible alarm; rather, an LED blinks to indicate an unauthorized intrusion and blinks once for every 15 minutes since the event. LightSafer is simple but effective, with a clever UI ...

Erin: And catch them in the act. Izzy: And we’ll rig up micro:bits to set an alarm when the cupboard door is opened. It’ll be easy. Erin: They’ve hit. Go, go, go! Izzy: We did it by creating ...