[ishields]

As someone with some but not much exposure to RF, can anyone shed some light on how this is different from a regular transmitter/receiver hooked up to a pi (I've done just this with a pi zero for ~$20) and what the use cases for this might be?

[gh02t]

It's an SDR, so it can transmit and receive over multiple frequencies. It's basically a programmable transceiver that can be used to interact with many different protocols and transmission encodings on different frequencies. Looks like it also has some specialized abilities for security stuff, e.g. brute forcing RF codes.

[deutronium]

Technically I don't think it is an SDR, as it's not using software to generate arbitrary modulation schemes. The chip is capable of transmitting data through certain modulations.

http://www.ti.com/corp/docs/landing/cc1111/ - is the chip they're using.

[tartopom]

Yes, it is not a SDR because CC1111 doesn't send the I/Q samples, so no custom demodulation possible. Only support some standard modulation AM/FM/FSK, ...