milan.rajik
Banned
- Joined
- Apr 1, 2013
- Messages
- 2,524
- Helped
- 540
- Reputation
- 1,078
- Reaction score
- 524
- Trophy points
- 1,393
- Activity points
- 0
What is the max length of wires that can be used with a PIR sensor ? My PIR sensor is from Parallax. It has 3 pins. Vcc (5V), GND and OUT. Out pin goes high when motion is detected and remains high as H_L jumper is set to H. They are 5V TTL pins. I need to know the max length of wire that can be used to interface this with PIC18F MCU. In my system I will be using 3 PIR sensors. One will be near the main board and others will be at different places but with in 10 feet radius.