Audio-reactive traffic light

Just a bit of fun, came across an out of use traffic light and built an arduino controller for it.

NA fun little project to build an arduino based controller for a conventional traffic light. The plan (despite all better judgement and advice) was to use a microphone to capture sound from the environment, break the signal down into frequencies and use "lows", "mids" and "highs" to trigger a light each respectively. it has been a learning process...

V1- used cheap switching relays; generated a feedback loop; clicking relays would be caught by the mic and trigger the relay...

V2- switched to solidstate relays, much better. Continuing issues with the red light. Software side issue. Calibration is problematic due to huge variation in ambient noise levels and source music volume...

V3- Work in progress...

Client: Personal

Location: UK

Date: Ongoing

Role: Designer & Project Manager