How to make an IR proximity sensor| for just Rs 50

Infrared IR Sensor Circuit Diagram and Working Principle. ... IR Sensor Circuit Diagram and Working Principle. ... In this project, the transmitter section includes an IR sensor, which transmits continuous IR rays to be received by an IR receiver module. items required : 1.LM358 2.LED 3.IR TX RX 4.Resistors(100,220,10k ohm) 5.Buzzer 6.10k variable resistor If u wanna buy required elements click on the below link http://amzn.to/2nyJ9bH https://www.amazon.in/gp/search/ref=as_li_qf_sp_sr_il_tl?ie=UTF8&tag=8792463400-21&keywords=robo india LM358&index=aps&camp=3638&creative=24630&linkCode=xm2&linkId=7e7ca36f406dcd40353c9f418503f933 http://amzn.to/2mDtsLm http://amzn.to/2mDtxyE