This Long range Infrared transmitter can emit pulsed IR rays up to 10 meters. ... By changing R2 with a 4.7K preset, output frequency can be changed. Red LED indicates whether the IR LED is working or ...

PixMob units are wearable LED devices intended for crowds of attendees at events like concerts. These devices allow synchronized LED effects throughout the crowd. [yeokm1] did a teardown of one obt… ...