Nov 15, 2018
#soundvialight #IRtransmitter #IRreceiver #opamp #lm386 #amplifier #infraredLED #infrared #phototransistor #electronics #circuit #prototyping #maker https://www.instagram.com/p/BqMvopyHMfw/?utm_source=ig_tumblr_share&igshid=1ai20bi3ulv48











