I'm using an electric grinder like yours, with a regular filter coffee machine, simply switching it on, wait for some water to drip in, off, wait, on again, off, etc.
 https://nostpic.com/media/d0aa74cd95a651d3d2ab4fb18b58fe71b447d78d40f8dd46f1dbaed5603d35cd/f146604a2406d14e621dc44b1a3cca579e4468b7568cd3bbed9db5e215d30fe5.webp