TTL & UART bluetooth module

- Jul 25, 2019-

Sometimes customer may misunderstanding about TTL and UART .You may think it looks same .

UART = Universal Asynchronous Receiver/Transmitter. 

TTL UART will output (and input) only TTL levels, essentially 0 bit = 0V and 1 bit = 5V. And many modern-day gadgets (Arduino, simply use TTL voltage levels for serial communication.

Actually the bluetooth module except TTL UART there is RS232 UART .

RS232 it is an interface similar like computer .

Feasycom bluetooth module usually are TTL UART .

For more detals ,feel free to  Contact Feasycom .