http://www.youtube.com/watch?v=gQk3xjOUo4Q
i watched this vedio and want to make a switch that when somthing pass through and block the infrared emmiter with the sensor the LED light up.
then i go with this . I seperate the infrared emmiter this is the sensor part.
my infrared sensor and emmiter
My problem is
1) i cant get the LED bright enougth (it is just half as bright as it should be)
2) the seller said it can sense 3-8 meter bt now i can only get it work in 40cm . I want at least 2M
3) can i connect it with multiple LEDs?
4) sould i change my sensor?
i watched this vedio and want to make a switch that when somthing pass through and block the infrared emmiter with the sensor the LED light up.
then i go with this . I seperate the infrared emmiter this is the sensor part.
my infrared sensor and emmiter
My problem is
1) i cant get the LED bright enougth (it is just half as bright as it should be)
2) the seller said it can sense 3-8 meter bt now i can only get it work in 40cm . I want at least 2M
3) can i connect it with multiple LEDs?
4) sould i change my sensor?