Expe Ir|Enhance your Arduino projects with this IR Infrared Transmitter Module, a versatile 38khz IR Receiver Sensor Module designed for easy installation and customization.
One interesting thing that [yeokm1] discovered during the event was the apparent source of the infrared emitter controlling the devices. Knowing what to look for and reasoning that such an emitter would be mounted with a good view of the crowd, [yeokm1] suspected that the IR transmitter was...