Radon comes naturally from rocks and soil underneath our homes across the United States and the European Union. It is always around us an odorless, tasteless, and invisible radioactive gas. Radon is problematic because it leaks into our homes through cracks or gaps and builds up to higher levels. When you breathe radon gas the radioactive particles can get trapped in your lungs and cause cancer. According to the US Environmental Protection Agency (EPA), radon kills more than 21,000 people in the US each year and over 20,000 per year in the EU. According to the Center for Disease Control (CDC), radon is the leading cause of non-smoker lung cancer. Both old and new homes can have radon problems. Many homes require active radon mitigation systems usually involving sub-slab or crawl space depressurization. This involves a low-wattage (50W) fan that operates quietly and hopefully continuously to reduce the radon levels. The fan is often hidden in an attic, basement, or even outside the house where if the quiet and out of sight fan fails, the occupants will be exposed to radioactive radon. More information is available from the CDC, EPA, state, and local governments including regional maps.
Each Friday is PiDay here at Adafruit! Be sure to check out our posts, tutorials and new Raspberry Pi related products. Adafruit has the largest and best selection of Raspberry Pi accessories and all the code & tutorials to get you up and running in no time!
Eink, E-paper, Think Ink – Collin shares six segments pondering the unusual low-power display technology that somehow still seems a bit sci-fi – http://adafruit.com/thinkink
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.