Can you buy a working radar module for $12? As it turns out, you can. But can you make it output useful information? According to [Mathieu], the answer is also yes, but only if you ignore the datas… ...

A 7530 in SOT-89-3 package is good for building the exact replica of the PFM module. Here is the application circuit diagram of A7530 (A7530K3R-XXY series) from AiT Semiconductor Inc. Type & Value of ...