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 tiny, inexpensive microcontroller makes it easy to build reliable, room-by-room Home Assistant sensors without paying the smart home tax.

We used to need SBCs for these projects; modern microcontrollers handle them more easily and inexpensively while being easier to maintain.

The Ikea Timmerflotte temperature and humidity sensor is a complete steal for what it offers. It’s affordable, Matter-compatible and delivers reliable readings, all wrapped in a clean, unobtrusive ...

Researchers developed a fingertip-sized, humidity-tolerant hydrogen sensor using platinum nanoparticles that catalyze reactions, thin a water film, change color, and trigger alarms. (Nanowerk News) ...

Several Raspberry Pi products with 2GB or more of memory will soon be $10 to $60 more expensive. Several Raspberry Pi products with 2GB or more of memory will soon be $10 to $60 more expensive. is a ...

Setting up access to a headless Raspberry Pi is one of those tasks that should take a few minutes, but for some reason always seems to take much longer. The most common method is to configure Wi-Fi ...

PCWorld reports that Raspberry Pi has launched its own USB 3.0 Flash Drive designed for enhanced reliability and durability in demanding conditions. Available in 128GB ($30) and 256GB ($55) versions, ...

The first Raspberry Pi was a revolution. It started as a project to offer the cheapest possible computer that someone could use as a normal PC for school or work, or as a risk-free way to learn ...

The Raspberry Pi 5 can shift AI-related workloads to the $130 AI HAT +2. The Raspberry Pi 5 can shift AI-related workloads to the $130 AI HAT +2. is a news writer who covers the streaming wars, ...

PCWorld explains how to create an affordable CO2 air quality monitor using a Raspberry Pi and MH-Z19C sensor for under $40. This DIY project helps monitor indoor air quality since high CO2 levels ...

Cutting corners: Raspberry Pi has introduced a new variant of its popular Raspberry Pi 5 single-board computer with 1GB of memory. The board comes at a premium price of $45, and you can blame the ...