4 ms·you can already do this with a flipper zero + badusb.by ok123456 3y agoyou can already do this with a flipper zero + badusb.rpodraza 3y agoNice. Flipper zero is pretty pricey tho, and in this case a simple dev board with usb (like stm32) will suffice ;)ok123456 3y agoOf course, you can do it cheaper. The advantage of the flipper is its form factor. It just looks like some kind of toy.