The board has four LED arrays resulting in a display of 8×32 LEDs. The MAX7219 takes a 16-bit data word over a 10 MHz serial bus, so programming is pretty easy.

Description An array is a collection of variables that are accessed with an index number. Arrays in the C++ programming language Arduino sketches are written in can be complicated, but using simple ...

SparseArray is an experimental library to implement a one dimensional sparse array of floats (a.k.a. vector) on an Arduino. A sparse array is an array with mostly zeros and a low percentage non-zero ...

These days, there’s a huge variety of screens on the market for use with microcontrollers. OLEDs and graphic LCDs abound, while e-ink devices tempt the user with their clean look and low ener… ...