It is simple electronics project heartbeat sensor or pulse sensor using op-amp IC LM 358
It works with IR transmitter & receiver LED
circuit diagram of this project is included in video
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Watch video heartbeat sensor circuit using lm358 | electronic projects | how to make online without registration, duration hours minute second in high quality. This video was added by user Technoreview85 13 November 2018, don't forget to share it with your friends and acquaintances, it has been viewed on our site 254,31 once and liked it 4 thousand people.