- Wed Jul 25, 2012 6:50 am
#147794
Hi, I want to make IR led and IR receiver (both of them are look like normal LED, IR LED is transparent, IR receiver is black color ) for making sensor for catching intruder. I bought it from electronic market of MYANMAR where I live.
1- I hook up IR led like normal LED in one of Arduino's digital pin and ground.
2- I hook up IR receiver LED as LDR with resister.
I only got short range (not exceed 4 to 6 inch).
I want to get long range ( around 4 to 5 feet).
How do I get it.
Thanks.
1- I hook up IR led like normal LED in one of Arduino's digital pin and ground.
2- I hook up IR receiver LED as LDR with resister.
I only got short range (not exceed 4 to 6 inch).
I want to get long range ( around 4 to 5 feet).
How do I get it.
Thanks.