Using NumPy for array and matrix math in Python. ... If we wanted to create a NumPy array with the numbers 0-1000, we could in theory do this: x = np.array([_ for _ in range(1000)]) ...

He calls it an LED matrix “Paint Toy” because one of the features he’s included lets the user create pixel art like in MS Paint. The 10×8 grid of lights is controlled by a PIC 16F877A.