ARG
0
- Joined
- Feb 27, 2011
- Messages
- 6,772
- Points
- 113
The point is it doesn't _need_ protection. There is literally no way you could damage it short of sending higher voltages into the RX pin, and if you're using a plain ol USB-TTL adapter, it's not gonna happen.
Jerry includes a USB-TLL adapter with the LPM's, if the included adapter is used then all will be fine, and in the case of the 2.5W USB it has it built in.