anyone can help me... i want to built infrared sensor circuit using LM324..but from previous thread they were suggest me to using ic LM339,where is better??
i want using this infrared sensor to detect obstacle and it will run my dc motor..
It seems as though you have doubts about what you heard in the previous thread.
If you are sensing the presence of light above some threshold instead of the intensity of the light, then the LM339 will do a better job. You can still use the LM324, especially if you don't need a lot of speed and timing is not critical.
i want use this infrared sensor to be my 'switch' to run my DC motor, for your opinion sir,what better component for my circuit?? i really need some idea from you..