EPH ELECTRONIC HC-SR04 (5V) Ultrasonic Distance Sensor Instructions
EPH ELECTRONIC HC-SR04 (5V) Ultrasonic Distance Sensor SPECIFICATIONS Input Voltage: 5V Working Current: 15mA Standby current: less than 2mA Working Frequency: 40KHz Induction Angle: <15° Distance Range: 2cm ~ 400cm Resolution: 1cm Trigger Input Pulse Width: 10uS Pin Number: 4 Pin Interface: TTL Compatible with Arduino Size: 45mm x 20mm x…