The sendEmail () function is responsible for triggering the email alert when an object is detected. A secure Wi-Fi client is ...

Amanda Smith is a freelance journalist and writer. She reports on culture, society, human interest and technology. Her stories hold a mirror to society, reflecting both its malaise and its beauty.

The hardware setup shown below includes the Arduino Uno R4, a DHT11 sensor, and the built-in Wi-Fi for email alerts. The DHT11 is connected with VCC to 5V, GND to ground, and the data pin to Digital ...

We've all got that "shelf of shame" -- a graveyard of ancient laptops, tangled power bricks and printers that haven't seen an ink cartridge since 2010. Letting this e-waste sit in your house is a ...