Ultrasonic distance level meter without arduino/microcontroller
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[NEW] TOP 3 ELECTRONIC PROJECTS WITH TRANSISTOR 2N3055, 2N2955, BD140 & ULTRASONIC SENSOR.
Use ultrasonic sensor for find the object #arduino #ultrasonic
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NO Arduino!! Ultrasonic Sensor Proximity Circuit using 555 IC and Transistors
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Smart Glasses for Blinds without Arduino || Inspire Award Science Project || SKR Electronics Lab
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NE555P HC-SR04 Controller || How to make a ultrasonic sensor controller using 555 IC
