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 ...

In the world of social media, “keeping receipts” refers to the practice of storing evidence that may come in handy for a callout post at a later date. For [Teddy Warner], though, it’s more applicable ...

A reliable indicator of the air quality in offices, classrooms, or living rooms is the CO2 content. In fresh air, the concentration of carbon dioxide is around 400 ppm. This stands for “parts per ...

Professional mountain bike racing is a rather bizarre sport. At the highest level, times between podiums will be less than a second, and countless hours of training and engineering go into those ...

MCUs are ideal MQTT clients because the protocol is lightweight and designed for low-bandwidth, low-RAM environments.

This repository contains the code for the Raspberry-Pi bare-metal programming in C series. The home of the tutorial and all of the articles relating to the code is at valvers.com and github The ...

This package turns your Raspberry Pi into a USB Ethernet gadget using the kernel’s g_ether driver. On the host it appears as: CDC-ECM on Linux and macOS RNDIS on Windows (use the included Raspberry Pi ...

Abstract: Surveillance, crowd management, and person tracking are major problems. This research work describes the process of counting and identifying people in real-world scenarios, as well as ...