Fingerprint doorlock Arduino project make from Fingerprint sensor and Solenoid door lock ... Fingerprint doorlock Arduino project make from Fingerprint sensor and Solenoid door lock - ...

Connections between Arduino and RFID are given in the table below. The positive pin of the buzzer is connected to digital pin 4 of Arduino, and the GND pin is connected to the ground pin of Arduino. A ...

Ultrasonic sensors are commonly used in Arduino projects for distance measurement. An ultrasonic sensor is a device that uses ultrasonic waves for distance measurement. It works on the principle of ...

This unit uses a Ping ultrasonic range finder to input a four digit code. It’s a hardware upgrade, but uses the same basic concept as his button-based combo lock .

Ultrasonic Sensor Module. There are many types of Arduino distance sensors, but in this project we have used the HC-SR04 to measure distance in range of 2cm-400cm with an accuracy of 3mm.The sensor ...

In this project, the ultrasonic sensor module type KY-050 is used together with an Arduino and a type KY-012 active buzzer to help while reverse parking our vehicle. As the distance to the objects ...