distance meter with infra red

[hamid9543]

hi
i need shematic for distance meter with infra red(about 30 cm)  with pic micro or without microcontoroler
thanks

[chandra2sekhar2000]

hello hamid
for this u need a sensor which is readily available. GP2Y0A02YK FROM SHARP ELCTRONICS.IT CAN DETECT FROM 20-150CM RANGE.OR GP2D12 FOR 10-80CM RANGE.FIRST BRING IT LATER ON U CAN DEVELOP THE CIRCUIT.I AM TRYING FOR IT FROM 2 YEARS FOR SENSOR BUT NOT YET FOUND IN INDIA.

[rf151]

hello
if u dont ffind that ic ,u can simply use an infrared LED for transmitrer and a IR opto-transistor as reciver.

[avlober]

hi,
For 30 cm the best choice is GP2D120