Testing a homemade line following sensor for a robot

[TheAyampunk]

what volt you use?? 5v?

[magicalmachines]

@TheAyampunk Yes I used 5V, sorry I forgot to mention that.

[togaida]

which quad Op amps?

[magicalmachines]

@togaida The op amp was an lm324

[togaida]

@magicalmachines Really? Cool...thanks.

[CROUCHINGCOUGAR]

what parts did you use? LDR, 10k resistor, LED, is that a MCU or a logic IC? and what are the those two black object with white in the middle?

[magicalmachines]

You've probably found it on the site by this time but here ya go :)

1 x op-amp (I'd buy a few quad op-amps as the more sensors you have the more accuracy you get)

1 x LDR

1 x LED (a white LED works best for me)

1 x 10k resisitor

1 x 1k resisitor

1 x variable resisitor (I'd get a few 47k resistors as they are useful to have for other projects and testing)