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Connect the HC-SR04 module to the board
Long Cycle life
Pin 14 (D5): Data input for flip-flop 5
Features/Specs:
It is isolated from external circuit as well so you don’t have to provide any fault detection relay and protection circuit for it
2 x 18650 Battery Shield V8 Module for Arduino and ESP32/ESP8266 Fingerprint Sensor Connect the HC-SR04 module toThe 2 x 18650 Battery Shield V8 Module provides a reliable power source for your Arduino, ESP32 and ESP8266 projects. This module allows you to connect two 18650 lithium batteries to deliver stable 3. 3V or 5V power outputs. With its integrated charging circuit, you can recharge the batteries easily through a micro USB input port. The module features an efficient conversion rate of up to 95%, ensuring minimal energy loss. It is designed to offer both
