Bill’s latest video!
Bill takes apart a smoke detector and shows how it uses a radioactive source to generate a tiny current which is disrupted when smoke flows through the sensor. He describes how a special transistor called a MOSFET can be used to detect the tiny current changes.
Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground” – Adafruit’s Apps!
Maker Business — The Not-So-Secret Code That Powers Robots Around the Globe
Wearables — Glitter big
Electronics — Turn the heat up! when unleaded
Biohacking — Google Sheets Based Life Tracking Dashboards
Sorry, the comment form is closed at this time.