Its one thing when these camera violations might fine you $200 or so, but it’s another them having sent to your house a $450 to $550 ticket.
Depending on how you view them, red light cameras are a great way to get people to drive carefully, or an utter nuisance. We agree with the latter opinion, as does [Dave], so he built a handy little device that alerts him when he’s about to approach one of these intersections.
His Red Light Camera Alerter is based around an Atmega 328P sporting the Arduino bootloader. The micro obtains GPS coordinates while [Dave] is driving, comparing his current location with a table of all known red light intersections in the area. As he nears a red light camera, the status LED changes colors from blue to yellow to red as he gets closer, making it easy to keep aware of his situation. He also included an Adafruit OLED display in his device, which relays his speed, GPS coordinates, heading, and actual distance from the red light in real time.
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