RASPBERRY PI DOORBELL
Amaze callers with our presence-detecting magic trick
GET A FEW minutes’ warning on the arrival of a friend or loved one with this technological ‘magic trick’. How you use that time is up to you: whether it’s tidying the house, doing a final mirror check before a date, preparing a surprise or just being ready to greet your partner as they get in from work.
Best of all, the trick uses a £10 Raspberry Pi Zero W and a bit of code, so there’s no need to install sensors around your home or solder wires.