ammarabbasi
Junior Member level 3
I am going to build a line tracking robot , tracking a 1" white line on a Blue arena . and potting 3 pingpong balls (preloaded) in each of already placed 3 baskets at 3 different positions , when it finds them . i have got LDR to track line .
I have LDR whose values of resistances for dark and Light in a room have been calculated . Now to decide for pulldown resitor should i take average of these two values . as
Pull down Resistance = LDR_resistance (light) + LDR_resistance (covered) / 2
OR
i have to stick on my tracking situation and get LDR resistace values from WHITE TAPE (used for line) and BLUE arena . and then take average of it , as
Pull down Resistance = LDR_resistance (white line) + LDR_resistance (blue arena) / 2
kindly have a look at schematics attached !
I have LDR whose values of resistances for dark and Light in a room have been calculated . Now to decide for pulldown resitor should i take average of these two values . as
Pull down Resistance = LDR_resistance (light) + LDR_resistance (covered) / 2
OR
i have to stick on my tracking situation and get LDR resistace values from WHITE TAPE (used for line) and BLUE arena . and then take average of it , as
Pull down Resistance = LDR_resistance (white line) + LDR_resistance (blue arena) / 2
kindly have a look at schematics attached !