1.9K views · 35 reactions |  PDF Building instructions, and programming blocks for #Pybricks and #SPIKE3. Smooth waving motions are harder than you think . Especially if you want to #synchronize both arms and use a smooth #mathematics #sine function. But once you have that, you can use that to make the cat's heart pound for you. With #sine #luminosity. All on a simple #LEGO #spikeprime model. | Antons Mindstorms | Facebook