Glen has been working on a Wi-Fi enabled bicycle traffic signal project: In the first post in this series, we built a miniature LED bicycle traffic signal using 3D printing, laser cutting, a sticker, and an Adafruit Neopixel Jewel. In this post, we’ll look at bringing the signal to life using a Particle Photon. We’ll […]
Tag Archives: traffic control systems
Traffic lights and MIRT
Why do traffic lights seem to change green whenever emergency and government vehicles approach? Through the use of various technologies, one of which involves use of a Mobile InfraRed Transmitter (MIRT). An IR sensing device like that pictured above is mounted near overhead traffic lights and senses certain IR LED pulse codes sent by approaching […]