seanspotatobusiness
- Sep 11, 2012
- 193
- Joined
- Sep 11, 2012
- Messages
- 193
It seems like there are many different manufacturers of the PIR module HC-SR501 and this confuses me somewhat. What is the name "HC-SR501"? There's only one manufacturer of the Galaxy S7 and that's Samsung. Why is it different for the HC-SR501? Did the originator not patent it or is the patent just ignored? I figure this applies to a lot more than just this particular module.