This project demonstrates a cost-effective radar-guided defense system using an Arduino microcontroller and basic sensors. It detects threats using an ultrasonic radar ... Array to store distance ...

These blocks are linked and secured using the latest cryptography technology. Digital ledgers have been around for years, but it’s the associated features that are built into blockchain that ...

ease of use and quality of help content and customer service. For filers who prefer face-to-face help, H&R Block’s Work With A Pro option offers the most flexibility. You can meet in person at a ...