RFID Module: Reads the UID from an RFID tag/card. If the UID matches the authorized UID, access is granted. This project is open-source and can be freely used for educational purposes. I demonstrate ...
#define SS_PIN 53 #define RST_PIN 11 #define TRIG_PIN 25 #define ECHO_PIN 23 #define pitches.h const int G1 = 2, G2 = 3, G3 = 4, Y1 = 5, Y2 = 6, Y3 = 7, R1 = 8, R2 = 9, R3 = 10; const int buzz = A2; ...
Abstract: In a shopping mart, imagine ten people waiting in line. If the first five people have many items in their carts, the last person with only one or two items may wait a long time to pay. To ...
Abstract: Thefts problem in household needs to be anticipated with home security system. One of simple methods is using automatic solenoid door lock system, so that it is difficult to be duplicated ...