It all started one bright morning when I wondered: Can the RAM memory on an AVR chip continue to store data after power is removed? If it can hold the data even just for a brief moment, then that could be very useful in a project I am working on.
To test it, I wrote a tiny little program that would check for a a special value in RAM (a “magic cookie”) upon power up and light an LED if it saw the right value…
Here’s a handy Arduino shield: we’ve had a lot of people looking for a dedicated and well-designed data logging shield. We worked hard to engineer an inexpensive but well-rounded design. Not only is it easy to assemble and customize, it also comes with great documentation and libraries.
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 — Apple: Right to Repair iPhones Encourages Hackers @Apple :)
Wearables — Last minute glow
Electronics — High voltage logic
Biohacking — University Community Testing Services
No comments yet.
Sorry, the comment form is closed at this time.