ATtiny13 + 8* 74hc595 Shift Registers. It have to modes: random matrix and binart counter. Code: https://github.com/taunoe/attiny13-shift-matrix
This is basic Joule thief circuit. It uses one AA (1.5) battery. When batteries are almost empty. Then there are … More
If you stand in front of it, it measures distance between you and displays it.
Freeform electronic circuit sculpture no. 2: Red Pulsar
Notes: Mohit Bhoite, bhoite.com dead-bug, air-wire,point to point Mart Tilden – Beam Robotics (Biology Electronics Aesthetics Mehanics) Peter Vogel – … More