Review on 🖥️ Enhanced Arduino Compatible Serial LCD Module - 20x4 Blue with White Backlight by Tarrance Man

The first module I received from this supplier was DOA. Connected 3 to 3 and nothing. There's not even a backlight. Completely dead. So I got an RA from Revain and got it back on credit and ordered another at the same time. I had to deliver the goods to my front door. When the 2nd module arrived. THAT'S ALL. DOA *again*! I understand that I have two exactly the same displays from other manufacturers and they work fine. Same wiring harness, same processor. The same commercial product. They even have the same IDs and PCB markings. So the ONLY difference is the reseller. I can literally plug in a good one, load my product (MMI serial port for a production CNC) and it works. Change the ad to another one from this seller and NADA. These things are just junk. After two attempts I will change the seller. Beware. YMMV.