The CH340 chip converts TTL (serial) to USB and vice versa on boards like Arduino boards. Additionally, there is no programming required to access the processor on boards using this chip. However a compatible CH340 driver, your computer might be unable to identify this chip.
CH340 Driver [Download] Windows 11 & Windows 10
Device
Also Known As
Interface/port(s)
CPU/Chipset(s)
Operating System(s)
