HC-SR04 Ultrasonic Distance Sensor Module — 2cm to 400cm converter HY27UF series (TSOP32)

HY27UF series (TSOP32)

WTV020-SD module is a voice-rewritable voice module with a maximum storage capacity of up to 1GB SD card memory

Pin 30: ALE/PROG

and many isp software

the module provides visual feedback on the status of the measured voltage

HC-SR04 Ultrasonic Distance Sensor Module — 2cm to 400cm converter HY27UF series (TSOP32)HC SR04 Ultrasonic Distance Sensor Module 2cm to 400cm The HC SR04 is the most popular ultrasonic distance sensor in the Arduino community, and for good reason. It uses sound waves to measure distance with impressive accuracy from just 2cm up to 400cm without any physical contact. Whether you're building a robot that avoids obstacles, a parking sensor, or a liquid level detector, the HC SR04 delivers reliable results every time. Technical