The Drill-Free, Motion Sensor Lights That Reviewers Put ‘Everywhere’ Are 20% Off
These rechargeable under-cabinet lights work all over your house, get them on sale.Amazon More visibility in your home is ...
Hackaday1y
Presence Sensor Locks Computer When You Step Away
The project is based around the LD2410 presence sensor — a small 24 GHz radar module ... The only thing that [Enzo] wants to add is a blinking LED to let the user know when the device is about ...
Hackaday7y
Color Sensor From An RGB LED And A Photocell
If you know the red, green, and blue components of the light that correspond to maximum reflectance, then you know the color of the object. Their sensor uses a four-lead RGB LED, but we suppose a ...