Flipper Zero using its onboard Signal Generator and interfaced through the GPIO's with a high power Infrared LED array can imitate a 3M OptiCom transmitter. This system is known as Traffic Signal Preemption and can cause the traffic light controller to give the OptiCom equipped vehicle the right-of-way. OptiCom uses 10, 12, & 14 Hz strobe flash rates.
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VIDEO UPDATE!
My OptiCom Sensor teardown and back engineering, also using a $12 flashlight to control the green light preemption: https://youtu.be/Nhr6zTaBCUs
