The LS6506R and LS6507R PIR-sensor interface ICs are available in 16-pin SOIC narrow-body and DIP packages. Pricing in lots of 1000 is $0.75 each. LSI COMPUTER SYSTEMS INC., Melville, NY. (631 ...

While homemade masks are usually made from fabric [DesignMaker]’s version is much more to a hacker’s taste and includes 3D-printed parts, an Arduino Nano, PIR sensors, an SG90 servo, and some ...