seems not many ESP32 actually have 5GhZ, just the c6.

the hardware would be esp32 based and set to receive at 5900Mhz

video talk on opentrafficmap the description does not link to actual hardware used e.g. suggesting it's less simple than suggested in the other blogpost I'd like one for our street to see actual speeds / number of cars.

using broadcast messages for traffic, interesting to see if one can do something at neighbourhood level.