Change Baudrate Data bits Parity Stop bits

Projects Programming
1

Hi to all! :slight_smile:
im cristian, from italy.
my first post here.

i have a lot of question on how change the Baudrate Data bits Parity Stop bits on HARDWARE serial.
i buy an arduino mega adk, with -> atmega 2560, and i need to change the Parity Stop bits and the Data bits (Serial1 pin 19-18) to communicate with a fingerprint reader.

so, the questions is: how to?

i read the old forum, and something here... but.. I have not figured out how to do.
perhaps a general way may be useful to all.

thanks for the help :slight_smile: :slight_smile:

ps: if can, will be great avoid the use of SoftwareSerial

2

The ATmega UART hardware certainly supports it.
See section 22 of the '2560 data sheet:
Supports Serial Frames with 5, 6, 7, 8, or 9 Data Bits and 1 or 2 Stop Bits
Odd or Even Parity Generation and Parity Check Supported by Hardware

There's some example C code in the data sheet as well.

3

thanks a lot :slight_smile: