This is an oldie-but-goodie – the LM3914 is an analog-input LED driver. That means you can feed it an analog voltage input and it will light up LEDs in order, ideal for a no-microcontroller LED VU meter, or battery meter, or spectrum analyzer (when combined with some band-pass filters). Has nice extras like constant-current drive, and DIP size. I think these are rather cute!
All this and more, in the PART FINDER!
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 — Toys R Us will have Raspberry Pi ?
Wearables — Foam to leather
Electronics — Proceed with caution
Biohacking — Machine Learning and Ketosis
Sorry, the comment form is closed at this time.