In March 2020, a husband and wife in a Tennessee memory-care unit escaped after deciphering a keypad code. The husband used his military background to crack the exit code, revealing a significant ...
Many people think the biggest safety risks happen at night. But one Dallas woman says a normal workday quickly turned frightening after an unfamiliar man showed up outside her apartment door. The ...
This project implements a simple calculator on the STM32F401RE microcontroller using bare-metal programming (no HAL or RTOS) from scratch. User input is taken via a 4x4 matrix keypad connected through ...
int latchPin = 4; // khai báo các chân kết nối thanh ghi dịch int clockPin = 5; int dataPin = 3; int pins [8] = {6, 7, 8, 9, 10, 11, 12, 13}; // các chân ...
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