Can any one pls tell wat value of photo resistor can be added to the sensor circuit of the line follower.....
pls help
thanks.....**broken link removed**
Anyways...the picture is not visible. You may use any value of Photo transistor. Only thing you have to do is to adjust the resistance with pull up or downs and get the required logic out when the track is detected and the other logic when track is not detected. Good luck
Anyways...the picture is not visible. You may use any value of Photo transistor. Only thing you have to do is to adjust the resistance with pull up or downs and get the required logic out when the track is detected and the other logic when track is not detected. Good luck
Are you refering to a LDR when you say Photo resistor? You may use any photo diode and vary the variable pot to get different "Logic's" when the track is detected and when not.
Are you refering to a LDR when you say Photo resistor? You may use any photo diode and vary the variable pot to get different "Logic's" when the track is detected and when not.
The LDR has a value of 1KOhm with direct light from a Laser pointer and, can have a value up to 1MOhm without the light.
I measured these values myself when experimenting my Laser Burglar alarm.
Just one concern, as I can see from the schematic, you are using an "InfraRed LED". I don't think that the photoresistor (LDR) will detect it. Probably, you have to use phototransistor.
Dear,u can use anyone from phototransistor/photodiodes.
Both have good quick quick response time.
Someone say good to the phototransistor or some say to the photoresistor.