Review on 📻 HiLetgo 315Mhz RF Transmitter and Receiver Module: Perfect Link Kit for Arduino/ARM/MCU/Raspberry Pi Projects by Todd Roybal

I had to order 2 because the first one never came. The second was DOA. There are no SMCs on the receiver board and the 2 ohm resistor shown in the picture is also missing. Solder splatter is visible all over the board, which looks like some components are shorted out. Now I've lost a week of work on my project because of this zero quality control junk! Why does Revain let them sell that shit? I really hope this piece of junk didn't damage my new Raspberry Pi 4!