Serial Communication

Transistor-Transistor Logic (TTL)

Not to be confused with Time to live.

NOT a protocol

. TTL is not a protocol. TTL is an electrical standard that specifies voltage levels for digital signals, NOT how the data is structured or communication.

TTL describes the voltage levels:

  • High: ~3.3V or ~5V (depending on the system)
  • Low: ~0V

I saw this term while trying to understand how the Dynamixel daisy chaining worksc