Be taught- make LM358 based mostly IR Proximity Sensor at residence. This sensor Can work as a Touchless Door Bell.
Venture file on the free design software: https://easyeda.com/tapendramandal/IR_Proximity_Sensor-ff592e4018234260ab705701cd669ad2
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Obtain Circuit Diagram- http://www.mediafire.com/file/56l4hmow5c3apyj/IR_Sensor_Circuit_and_Material_List.zip
Required Parts-
Purchase Readymade IR sensor (http://amzn.to/2meFM4F)
1. LM358 IC
2. Zero PCB Board
3. IR Transmitter Receiver Pair
4. Buzzer
5. LED
6. 10K ohm Variable Resistor
7. Resistor(100ohm, 220ohm, 10K) and many others.
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