Here's the new description with all links and additional text removed: Order your pcb design at JLCPCB: $2 for 10pcs PCBs (24 hours turnaround time) up to $20 shipping discount on first order (PCB ...
An off the shelf an Arduino Leonardo will communicate with a host PC using its serial port over the USB cable. If HID emulation is enabled (mouse/keyboard/UPS), that communication is also over the ...