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1 × PIR Motion Sensor Module Digital HC-SR501
you can use one cable for multiple Boarduinos
Classroom radio games and data-logging projects
It can be used in communication devices
microcontrollers
Pololu Logic Level Shifter 4-Channel Bidirectional - 3.3V/5V precision cutter 1 × PIR Motion SensorBuild More with Logic Level Shifter, 4 Channel, Bidirectional The Logic Level Shifter, 4 Channel, Bidirectional is a practical support part for wiring, level shifting, programming, or mounting in embedded builds. It helps make integration easier and cleaner in prototypes as well as finished systems. Why you'll love it Translates low high both ways: no direction pins needed for typical bus useeach channel is bidirectional Great for mixed voltage
