help with components | Microcontroller › 8051 › Interfacing IR sensor with microcontroller › help with components December 27, 2010 at 5:23 pm #5273 sikandarParticipant can you plz tell me that why are we using op amp in the circuit wth the IR transmitter and IR reciever. and secondly plz tell me that why are we using the specified resistors (100k,10k,4.7k)
