Looks pretty cool, though kinda "cheating" by pulling from adsb.fi - though I think you'd need something a lot more powerful than an ESP32 to receive and decode ADS-B ;)
sephamorr•42m ago
I would actually expect the math to decode ads-b traffic is substantially less complex than, for example, a TLS connection.
greggsy•5m ago
It is trivial to decode, but don’t forget that tls is extensively optimised on most networking stacks.
bigiain•32m ago
Using ADS-B and calling it a "radar" feels wrong to me.
(But is is a cool project)
daemonologist•8m ago
Agreed, and even SSR always felt like cheating imo. I wanna see someone build a primary radar on an esp 32.
punnerud•17m ago
Actually possible to receive and decode ADS-B on ESP32, but MLAT is failing (tried hard but not found a trick yet).
Biggest problem isn’t that it’s not powerful enough, but the USB port bandwidth don’t match most SDR.
Using some clever tricks you can receive parts of the message on a slower USB and be able to decode ADS-B
greggsy•6m ago
You could fit a pi zero and rtl in an enclosure not much larger than the one they’ve printed.
freitasm•34m ago
Well, a radar-like display, then. But not a radar.
NooneAtAll3•29m ago
radar *display*
making esp32-based radar emitter would've been cool, tho
amatecha•53m ago
sephamorr•42m ago
greggsy•5m ago
bigiain•32m ago
(But is is a cool project)
daemonologist•8m ago
punnerud•17m ago
Biggest problem isn’t that it’s not powerful enough, but the USB port bandwidth don’t match most SDR.
Using some clever tricks you can receive parts of the message on a slower USB and be able to decode ADS-B
greggsy•6m ago