visitors this year: 40
visitors this year: 48 You can sense the human pulse cheaply using a sound sensor. While pulse sensors can now be found even in phones, using a sound sensor works too. Hold a sound...
rogerfrost.com is a compendium of ideas for using technology with sciencey questions in mind. Started in 1995 to offer ideas to school science teachers, its coverage now extends to gadgets, home automation, home living and sensors to help understand what’s going on around the house.
It’s fully indexed so you can use keywords and the search box above to find content.
Please enjoy and share this spam and advert free content. To say hi – hit the ‘leave a reply’ button on this page – the message goes only to me in Cambridge, UK.
Roger Frost (his cv) has been writing about technology since 1988 and this web includes his articles; tutorials, lesson outlines and radio interviews.
HOME AUTOMATION:
