Cellphone contain miniature speakers, printers have motors, while stereos use all manner of electronics. Taking these old or broken devices apart unveils a treasure trove of electrical magic just waiting to be used. Create intercoms throughout the house or automated window blinds to keep the heat from the sun out. There are many possibilities for both innovation and automation when it comes to using older devices that no longer have a use. Speakers aren’t the only items in old phones that can be useful. Discovering that the vibration from phones is caused by a tiny motor could give you ideas […]