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 ...

The device in many automobiles that warns drivers when their tire pressure is low transmits the data in unencrypted cleartext and carries a unique identifier for ...

Raspberry Pi under-cabinet clock shows time and weather; free 3D-print files and a no-API-key weather service, built for glance viewing.

Raspberry Pi launched a follow-up to its Camera Module 3 with the Camera Module 3 Sensor Assembly. Now, Raspberry Pi users can put the camera sensors into their own custom form factors. The move ...

Previously, we wrote about the Louder Raspberry Pi, an open-source media center that integrates the Louder Raspberry Hat based on a 25W TAS5805M Class-D ...

The Raspberry Pi has brought digital camera experimentation within the reach of everybody, with its combination of an accessible computing platform and some almost-decent camera sensors. If there’s a ...

In this video, I'm making a carbon monoxide monitor for my home using an MQ7 carbon monoxide sensor, a DHT11 temperature and humidity sensor, and a NodeMCU microcontroller board. This sensor is ...

Botanical sensors are turning greenery into living data networks while monitoring plant health and optimizing yields.

Accurate measurement of soil NO₃⁻-N is essential for precision fertilization and stable crop yields. Real-time monitoring of NO₃⁻-N has long been a challenge in agriculture. Conventional soil nutrient ...

Tired of paying for pricey VPNs? With a Raspberry Pi and a bit of know-how, you can host your own VPN for free. I’ll show you exactly how to do it. I’ve been writing about technology since 2012, ...

Chemists in South Korea have created a stable color-changing sensor that displays an easily quantifiable response to the pH of its surroundings. Published in Microsystems & Nanoengineering, Dong-Hwan ...