Wire-wrapping an LED matrix
[Osgeld] hackaday reader and Arduino forum friend made an odd matrix: Regular reader [Osgeld] built a 1024 LED display matrix. This is a proof-of-concept design and he admittedly has overloaded the components. Most notably, the 595 shift registers (featured over the weekend) are sourcing too much current if all eight pins are active. That’s easy […]