%0 Conference Article %T DEVELOPMENT OF RANGE FINDER BASED ON ULTRASONIC DISTANCE SENSOR HC-SR04 %A Klyamerov, K.P. %A Lysenkov, A.A. %A Amelin, S.A. %K range finder, timer, front interruption, seven-segment indicator, microcontroller %J CAD/EDA/SIMULATION IN MODERN ELECTRONICS 2021 %D 2021 %P 3 %I Bryansk State Technical University