555 constitute an ultrasonic transmitter circuit diagram

  
3 feet from the oscillating pulse output 555 of 40kHz drive T-40-16 work, so that emit ultrasonic signals of 40kHz. Circuit voltage of 9V, operating current 40 ~ 45mA, control distance is more than 8m.
555 constitute an ultrasonic transmitter circuit diagram - schematic

alt=" Ultrasonic transmitter circuit 555 constituted"> 555 constituting the ultrasonic wave transmitting circuit




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