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Project Notes

#071 TinyBlink

A simple LED blinking demonstration with an ATTINY85-20PU on a breadboard.

The Build

Here’s a quick video of it in action:

Notes

The objective here is to demonstrate an ATTINY85-20PU chip running independently on a breadboard.

Construction

Designed with Fritzing: see TinyBlink.fzz.

The ATtiny85 is configured to use an internal clock, so no external connections are required except power and ground.

LEDs are attached to pin PB0 and PB1 simply to show “signs of life”.

The Breadboard

The Schematic

The Sketch

See TinyBlink.ino.

The ATtiny85 is programmed using an Arduino Uno as described in LEAP#070 Programming an ATtiny With ArduinoISP.

Credits and References

About LEAP

LEAP is my personal collection of electronics projects - usually involving an Arduino or other microprocessor in one way or another. Some are full-blown projects, while many are trivial breadboard experiments, intended to learn and explore something interesting.

Projects are often inspired by things found wild on the net, or ideas from the many great electronics podcasts and YouTube channels. Feel free to borrow liberally, and if you spot any issues do let me know or send a pull-request.

NOTE: For a while I included various scale modelling projects here too, but I've now split them off into a new repository: check out LittleModelArt if you are looking for these projects.

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Some Other Sites

LittleModelArt my collection of scale modelling, miniatures and other art projects LittleCodingKata my notes and test code on software development topics and tools My Personal Blog occasional ramblings that don't belong anywhere else