Comment by yonatan8070
8 hours ago
This same devloper also built an SDR out of an ESP32 Wi-Fi microcontroller [1], this is awesome!
This development makes me hope that we'd be seeing more of these on common Wi-Fi cards, so that every random laptop could be used as an SDR for many fun and useful applications on a budget.
Every wifi radio is an SDR under the hood. I'm not sure about this hack, but the ESP32 one was limited to just acting as an ADC + gain control. That leaves the guts of the radio still locked down, which limits a lot of use cases where you want wifi frames and time domain data. You either need to accept the latency and extract frames on PC, or add an FPGA, or use two cards fed from same antenna. Tx is also not possible.
The MT7996 chip is available with the banana pi R4 board, which has SFP+ (10 gigabit) so you'd have a near completely open ISM band SDR platform right there, feeding data to your server via fiber optics.
"Damn, I forgot the garage code"
"oh, no problem"
>tippy tappy
>brrrrrrr
It’d be neat to see this on ESP32-C5, which also has a 5GHz radio. S3 is 2.4 only.
I was really excited about this, but as an average home assistant user couldn't really see an application, lol.