In this video I'm building an Arduino Heart Rate Monitor that is housed in a toy handle in the style of the Star Trek Tricoder. The device uses the PulseSensor with an Arduino Pro Mini and an OLED ...

Light aircraft often use a heading indicator as a way to know where they’re going. Retired instrumentation engineer [Don Welch] recreated a heading indicator of his own, using cheap ...

Local-first wins.

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 ...

This section defines the network credentials and server details required for sending the email. The ESP32-CAM connects to WiFi using the SSID and password. The host address, HTTPS port (443), and API ...

Where motion sensor meets LED guide light for the ultimate fusion of hands-free convenience, energy efficiency, and effortless safety. NEWPORT BEACH, CA, UNITED ...

This is a simple project in which a HC-SR501 PIR sensor is used to detect motion in a room. MQTT is used as the message broke between NodeRed and Rust running on a Raspberry Pi 4. The code detects the ...

Let’s face it: As we age, our vision and balance aren’t what they used to be. These changes to our senses can be minor annoyances but can also lead to injury, from stubbed toes to serious falls.

This is an installment in a multi-part series. Rising national material costs linked to new federal tariffs currently under review by the U.S. Supreme Court and a tightening construction labor market ...

Smart home sensors and cameras can also tackle tiny threats, providing info and options for handling bugs all on your own. Tyler has worked on, lived with and tested all types of smart home and ...