555 - by rudy
Make a circuit using a 555 timer
555 timer artwork
Get stickers + a chance to win a giant 3d printed 555 timer

1. Design a circuit that uses a 555 in Falstad. Don’t know where to start? Read the guide.

3. Once approved, you’ll get stickers shipped out.

4. You’ll also receive a massive 3D-printed 555 timer if your project is really cool.